WEBVTT

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You're in the bay. Once you get over to the bed,

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we'll give you the story. Everything's going

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to happen super fast. Welcome to the emergency

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room. You know usually when we talk about a medical

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diagnosis there is this this underlying expectation

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of precision. Right, like it's engineering or

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something. Exactly. Like you break your arm,

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you go to the ER, the x -ray shows that jagged

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white line right across the radius, and the doctor

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just points at the screen and says, well, there

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it is, broken. Yeah, it's binary. I mean, it's

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completely objective. There's really no debate

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about what you're looking at. Broken or not broken,

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it's clean. And you know, it's comforting in

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a way. We like things to be visible. We like

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our pathophysiology to be neatly categorized,

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boxed up, and labeled. But then you step into

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the world of obstetric nursing. Oh, boy, do you

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ever. Right. And specifically, you step into

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the way a pregnancy interacts with the human

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body's endocrine system. And suddenly, that metaphorical

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x -ray machine is just, well, it's completely

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broken. We're looking at a diagnostic landscape

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that is honestly incredibly murky. It really

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is. Because, I mean, how do you spot the abnormal

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when the normal baseline is absolute chaos? Well,

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it's normal third trimester pregnancy fatigue.

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versus, say, a dangerous, creeping thyroid crash,

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or what's normal, expected morning sickness,

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versus life -threatening dehydration that could

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literally put a mother into cardiac arrest. It's

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the absolute definition of diagnostic muddy waters,

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and that is exactly why this specific physiological

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intersection is so heavily tested on nursing

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board exams, specifically the NCLEX. They love

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this stuff. They really do. The exam raters know

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that the line between a healthy pregnancy and

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a metabolic disaster is razor thin. Well, welcome

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everyone to this deep dive. Now, we have a very

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specific mission today for you listening right

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now. We know exactly why you're here. You are

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an aspiring nurse staring down the barrel of

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those exams. Exactly. You're facing your OB nursing

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exams, your rigorous clinical rotations, and

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ultimately you are preparing to conquer the NCLEX.

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So today we are officially acting as your elite

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OB nursing educators. We are your personal exam

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coaches and your clinical mentors. That's right.

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And as your mentors, we know exactly what you're

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going through. I mean, you're completely inundated

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with information. So much information. You've

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got these massive thousand page textbooks. You

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have endless PowerPoint slide decks. You've got

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hundreds of normal and abnormal lab values just

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staring back at you, blurring together. It is

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beyond overwhelming. So we're going to change

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the strategy. Instead of drowning you in a dry

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textbook reading or just walking down a syllabus

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like a table of contents, we are going to sift

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through your specific source materials on complications

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of pregnancy, specifically endocrine disorders.

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And we are going to aggressively apply the Pareto

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principle. The 80 -20 rule. Exactly. As an exam

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coach, I can tell you that trying to memorize

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every single sentence in your textbook is a recipe

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for severe burnout. It's impossible. Right. We

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are going to extract the 20 % of high -yield

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facts. the recognizable clinical patterns, and

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those critical safety concepts that are going

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to give you 80 % of the value on your exams.

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We're pulling forward the most testable, most

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repeated, and most safety critical content. Okay,

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let's unpack this because before we even get

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into the specific conditions, I want to talk

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about the baseline. Setting the stage for all

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these disorders requires us to get over the first

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major hurdle for nursing students, which is understanding

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how pregnancy inherently alters the maternal

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metabolism in the first place. I want to speak

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directly to you, the future nurse listening to

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this right now. Put down your highlighter for

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a second. Just listen. Yeah, just listen. To

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think like a safe, competent future nurse, you

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have to move beyond just rote memorizing random

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lab values. The NCLEX doesn't just want to know

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if you can memorize a number. It wants to know

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if you understand what that number means for

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your patients sitting on the exam table. And

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understand that. We have to look pregnancy for

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what it really is. I mean, it isn't just a growing

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belly. Biologically speaking, pregnancy is essentially

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a nine month stress test on the mother's organs.

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That is the perfect way to frame it. It's a state

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of accelerated starvation and massive hormonal

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upheaval. The entire physiological system is

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hijacked and redesigned to funnel nutrients,

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oxygen, and resources to a growing fetus. And

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the endocrine system is driving all of it. Right.

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The glands producing the hormones, that's the

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chemical engine driving the entire process. And

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when that engine misfires, or when the maternal

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body just can't keep up with the stress test,

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we see the severe complications we're about to

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discuss. So let's start with the heaviest hitter

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in your materials. This is undoubtedly one of

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the most tested topics in all of maternal newborn

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nursing. You'll absolutely see this on your exams.

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We're talking about diabetes and pregnancy. Yes.

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And when we talk about diabetes and pregnancy,

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we have to establish the high -yield core right

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out of the gate. You have to differentiate between

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the types because the path of physiology dictates

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your nursing care. Right. So let's start with

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pregestational type 1 diabetes mellitus. So this

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is an autoimmune disorder. The mother's pancreas

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has been under attack by her own immune system,

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leading to the complete destruction of the beta

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cells. And just to clarify for everyone, the

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beta cells are the specific cells in the pancreas

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that manufacture and secrete insulin. So in type

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1, insulin production is completely absent. Right.

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That patient comes into the pregnancy already

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requiring external injectable insulin just to

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survive. And then we have pregestational type

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2 diabetes. Which is entirely different at a

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cellular level. It's driven by insulin resistance,

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heavily influenced by genetics, diet, and lifestyle

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factors. The mother's pancreas is still making

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insulin, sometimes even more than normal, but

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her body's cells are basically ignoring the signal.

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Like the locks on the cellular doors are jammed.

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Exactly. The locks are jammed so the insulin

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cannot open them to let the glucose inside. And

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then we have the third category, which is entirely

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unique to the obstetric population, gestational

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diabetes mellitus or GDM. This develops during

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pregnancy, usually showing up in the second or

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third trimester. And your sources note that this

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affects five to nine percent of all pregnancies.

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Think about that practically. If you were working

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on a labor and delivery floor with 20 beds, statistically,

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one or two of those patients has GDM at any given

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time. That is a massive chunk of your future

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patient population. It's huge. And to understand

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GDM, we have to ask the fundamental question.

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Why does pregnancy cause diabetes in a previously

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healthy woman? To answer that, you have to understand

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the hormonal shifts of the second and third trimesters.

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The placenta is not just a sac. It's an incredibly

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active, powerful endocrine organ, and it produces

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a specific hormone called human placental lactogen,

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or HPL. Ah, HPL. The biological villain of our

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story. I saw HPL all over the source text. But

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let's dig into the why. What exactly is HPL doing

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at a cellular level? Well, from the mother's

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perspective, it might seem like a villain, but

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from the baby's perspective, HPL is the ultimate

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hero. The entire evolutionary purpose of HPL,

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along with a surge in other pregnancy hormones

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like maternal cortisol and progesterone, is to

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intentionally create a state of increased insulin

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resistance in the mother. Okay, wait. Stop right

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there. Why on earth would the mother's body intentionally

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make her resistant to her own insulin? That sounds

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like biological self -sabotage. I know, it sounds

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like it, right? Until you look at the mechanics

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of fetal feeding. insulin's job is to push glucose

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out of the bloodstream and into the mother cells

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for energy. But if the mother cells become resistant

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to that insulin, they can't absorb the glucose.

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So more and more glucose just stays floating

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around in the maternal bloodstream. And where

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does all that maternal blood eventually flow?

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Straight to the placenta. Exactly. By making

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the mother slightly insulin resistant, HPL ensures

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there is a continuous, incredibly rich supply

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of glucose readily available to cross the placental

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barrier and feed the rapidly growing fetus. That

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is wild. It's a brilliant evolutionary survival

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mechanism. The baby is basically ensuring its

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own food supply. The baby is essentially hijacking

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the mom's... food delivery truck by blocking

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her own cells from unloading the cargo. That

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is a phenomenal analogy, yes. The baby locks

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the mother's loading dock, so the truck has to

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keep driving straight to the placenta. Wow. Now,

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in a completely healthy normal pregnancy, the

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mother's pancreas recognizes this resistance.

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It senses that the blood sugar is staying high.

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So it compensates. How does it do that? We see

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a biological process called beta -cell hypertrophy.

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The insulin -producing cells in the mother's

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pancreas literally grow larger and work overtime

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to pump out massive amounts of insulin to overcome

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the HPL resistance. So her body just turns up

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the volume on insulin production to match the

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resistance. Precisely. But here's where the pathology

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kicks in. In some clients, this compensatory

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mechanism fails. They experience beta cell dysfunction.

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The pancreas just gets overwhelmed. Exactly.

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It simply cannot produce enough insulin to match

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the massive overwhelming resistance caused by

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the rising HPL. The maternal blood sugar spikes

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and stays high. And that exact moment of failure

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is when gestational diabetes develops. Let's

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connect that back to the timeline because this

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is a massive aha moment for test taking. If HPL

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is the primary driver of this resistance and

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the placenta doesn't get large enough to pump

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out massive amounts of HPL until the later stages

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of pregnancy, well... that completely explains

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why gestational diabetes usually isn't diagnosed

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in the first trimester. Exactly. The platenta

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just isn't big enough yet to cause the problem.

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You've absolutely nailed it. That is clinical

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reasoning right there. If you understand the

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mechanism of HPL, you naturally understand the

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timeline of GDM. You do not even have to memorize

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it. It just makes logical sense. Okay, so let's

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talk about the clinical presentation. Who is

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most likely to experience this pancreatic failure?

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Nursing exams love risk factor questions and

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we need to know who to watch closely. Definitely.

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The sources list several key risk factors you

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absolutely must have in your mental toolkit.

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A maternal BMI greater than 25 or greater than

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30 for specific demographic populations and polycystic

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ovary syndrome or PCOS. Let's pause on PCOS because

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I want you to understand the why. Why does a

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syndrome involving ovarian cysts lead to diabetes

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in pregnancy? Right. What's the connection? It's

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because PCOS is fundamentally an endocrine and

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metabolic disorder characterized by profound

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baseline insulin resistance. Women with PCOS

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are already starting the pregnancy with insulin

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resistance. Oh, I see. Yeah. So when you add

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HPL on top of that, their pancreas fails much

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faster. That's a great connection to make. Other

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risk factor include a prior history of GDM in

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a previous pregnancy, a strong family history

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of type 2 diabetes, or a previous A1c sitting

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in that pre -diabetic range of 5 .7 to 6 .4 percent.

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And here is a highly tested one, a previous large

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for gestational age infant. or LGA. The cutoff

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they give in the literature is an infant weighing

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over 4 .08 kilograms, which translates to about

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nine pounds. OK, so if a patient tells you, oh,

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yeah, my last baby was 10 pounds, your internal

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alarm bells should be ringing for gestational

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diabetes. Oh, absolutely. Now, let's talk about

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why it matters clinically. As your exam coach,

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I can tell you that diabetes and pregnancy is

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a goldmine for NCLEX writers because it fundamentally

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impacts both maternal safety and fetal safety.

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It hits every priority nursing area. airway,

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breathing, circulation, and fetal distress. Let's

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look at the maternal impacts first. The sources

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highlight an increased risk for preeclampsia,

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which is a severe, life -threatening blood pressure

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crisis. And there's a risk for polyhydramnios.

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Let's explain that one. Poly meaning many or

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much, and hydramnios referring to the amniotic

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fluid. Why does diabetes cause excessive amniotic

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fluid? Think about the mechanism of high blood

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sugar. What happens to a diabetic adult when

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their blood sugar is 300? They experience polyuria.

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They urinate constantly because the kidneys are

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trying to flush out the excess glucose. The exact

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same thing happens to the fetus. The fetus is

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swallowing amniotic fluid, processing the sugar

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-rich blood from the mother, experiencing fetal

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hyperglycemia, and therefore, fetal polyuria.

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Oh, wow. Yeah, the baby is peeing excessively

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into the amniotic sac. That excess fetal urine

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is what causes the polyhydrominoes. That is wild.

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The excess fluid is literally the baby's sugary

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urine. That is a vivid, unforgettable way to

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understand that complication. It sticks with

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you. It really does. The sources also mention

00:13:16.309 --> 00:13:19.450
an increased risk for maternal urogenital infections.

00:13:20.029 --> 00:13:22.210
And again, the mechanism makes sense. Sugar in

00:13:22.210 --> 00:13:24.149
the urine is basically an all -you -can -eat

00:13:24.149 --> 00:13:27.669
buffet for yeast and bacteria. Exactly. And we

00:13:27.669 --> 00:13:30.309
cannot ignore the long -term post -pregnancy

00:13:30.309 --> 00:13:33.909
implications. A client who develops GDM has a

00:13:33.909 --> 00:13:36.950
60 % recurrence risk in future pregnancies. That's

00:13:36.950 --> 00:13:39.190
high. And even more terrifying, they have a massive

00:13:39.190 --> 00:13:43.100
risk of developing overt permanent type 2 diabetes

00:13:43.100 --> 00:13:46.840
mellitus within 5 to 10 years postpartum. We

00:13:46.840 --> 00:13:49.539
are talking about a permanent life altering chronic

00:13:49.539 --> 00:13:51.799
illness stemming from this pregnancy. I want

00:13:51.799 --> 00:13:54.120
to slow down here for a second because the psychosocial

00:13:54.120 --> 00:13:56.480
impact is explicitly pointed out in your materials

00:13:56.480 --> 00:13:58.559
and it's something nurses deal with every single

00:13:58.559 --> 00:14:00.779
day at the bedside. Imagine being a pregnant

00:14:00.779 --> 00:14:03.679
mother. You're already exhausted and suddenly

00:14:03.679 --> 00:14:06.480
you're handed this diagnosis, the anxiety of

00:14:06.480 --> 00:14:08.720
potentially harming your baby, the depression.

00:14:08.909 --> 00:14:11.610
the profound feelings of guilt or shame, feeling

00:14:11.610 --> 00:14:13.889
like you caused this by eating the wrong things,

00:14:14.070 --> 00:14:16.230
even though we know it's driven by HPL. It's

00:14:16.230 --> 00:14:19.169
so unfair. Plus the sheer financial and temporal

00:14:19.169 --> 00:14:21.809
strain. You suddenly have extra maternal fetal

00:14:21.809 --> 00:14:24.590
medicine appointments, endless daily finger pricks,

00:14:24.950 --> 00:14:26.769
dietary restrictions, and antenatal testing.

00:14:26.909 --> 00:14:29.429
It's an incredibly heavy burden. It's a phenomenal

00:14:29.429 --> 00:14:32.509
point. Empathy is a core nursing competency.

00:14:32.769 --> 00:14:34.750
You are not just treating a blood glucose level,

00:14:34.750 --> 00:14:37.070
you're treating a terrified mother. Your patient

00:14:37.070 --> 00:14:38.840
education needs to be delivered with immense

00:14:38.840 --> 00:14:41.360
compassion, reassuring her that the placenta's

00:14:41.360 --> 00:14:43.580
hormones are driving this, not her occasional

00:14:43.580 --> 00:14:46.460
craving for ice cream. So true. OK, let's pivot

00:14:46.460 --> 00:14:48.460
to the fetal and newborn impacts, because this

00:14:48.460 --> 00:14:50.960
is where the really critical high -stakes exam

00:14:50.960 --> 00:14:54.019
questions live. First, congenital malformations.

00:14:54.679 --> 00:14:56.700
The literature is specific here. This is primarily

00:14:56.700 --> 00:15:00.120
a risk with early pregestational diabetes, specifically

00:15:00.120 --> 00:15:02.940
type 1 or type 2, that is poorly controlled during

00:15:02.940 --> 00:15:05.889
the very first trimester. Right. And you must

00:15:05.889 --> 00:15:07.870
understand the timeline of fetal development

00:15:07.870 --> 00:15:11.090
to know why. The first trimester is the period

00:15:11.090 --> 00:15:13.669
of organogenesis. This is when the neural tube

00:15:13.669 --> 00:15:15.950
is closing, the heart chambers are forming, and

00:15:15.950 --> 00:15:18.730
the spine is developing. High levels of maternal

00:15:18.730 --> 00:15:22.110
circulating glucose are teratogenic. The oxidative

00:15:22.110 --> 00:15:24.950
stress from hyperglycemia literally disrupts

00:15:24.950 --> 00:15:26.649
the cellular formation of the heart and the neural

00:15:26.649 --> 00:15:29.570
tube. If the sugar is out of control in week

00:15:29.570 --> 00:15:31.590
six, the baby's heart might not form properly.

00:15:31.960 --> 00:15:34.299
But with gestational diabetes, which develops

00:15:34.299 --> 00:15:37.139
later in the second or third trimester, the organs

00:15:37.139 --> 00:15:39.740
are already fully formed. So what's the danger

00:15:39.740 --> 00:15:42.759
there? The danger shifts entirely from organ

00:15:42.759 --> 00:15:46.399
formation to fetal growth and birth trauma. Here

00:15:46.399 --> 00:15:48.679
is the absolute golden rule you must memorize.

00:15:49.200 --> 00:15:52.139
Maternal glucose crosses the placenta. Maternal

00:15:52.139 --> 00:15:54.659
insulin does not cross the placenta. Let me repeat

00:15:54.659 --> 00:15:56.539
that because it's so crucial. Sugar crosses.

00:15:56.919 --> 00:15:59.440
Insulin does not. Exactly. So the fetus is being

00:15:59.440 --> 00:16:01.700
continuously bathed in a high sugar environment.

00:16:01.980 --> 00:16:04.639
The fetal pancreas recognizes this massive sugar

00:16:04.639 --> 00:16:07.100
load and responds by pumping out huge amounts

00:16:07.100 --> 00:16:09.480
of its own fetal insulin to manage it. Makes

00:16:09.480 --> 00:16:13.480
sense. And here is the kicker. Insulin is a remarkably

00:16:13.480 --> 00:16:16.279
powerful anabolic growth hormone. It builds tissue.

00:16:16.720 --> 00:16:18.519
So a fetus producing massive amounts of insulin

00:16:18.519 --> 00:16:21.740
is going to grow excessively large. This leads

00:16:21.740 --> 00:16:25.360
to macrosomia. And a large, macrosomic baby leads

00:16:25.360 --> 00:16:28.539
to a cascade of delivery complications. Preterm

00:16:28.539 --> 00:16:32.690
birth. Birth trauma. and the absolute dread of

00:16:32.690 --> 00:16:35.090
every labor and delivery nurse shoulder dystocia.

00:16:35.389 --> 00:16:37.450
A true nightmare. This is when the baby's head

00:16:37.450 --> 00:16:39.690
is delivered, but the baby is so disproportionately

00:16:39.690 --> 00:16:42.710
large in the torso that the shoulders get physically

00:16:42.710 --> 00:16:45.490
wedged behind the mother's pubic bone. The baby

00:16:45.490 --> 00:16:48.460
is stuck. The umbilical cord is compressed. It

00:16:48.460 --> 00:16:50.700
is a catastrophic obstetrical emergency where

00:16:50.700 --> 00:16:53.120
you have mere minutes to dislodge the baby before

00:16:53.120 --> 00:16:55.740
a permanent hypoxic brain injury occurs. Yes.

00:16:56.019 --> 00:16:58.559
The text also mentions organomegaly, meaning

00:16:58.559 --> 00:17:00.899
the baby's internal organs, particularly the

00:17:00.899 --> 00:17:02.899
liver and heart, are physically enlarged due

00:17:02.899 --> 00:17:05.240
to that insulin growth factor. But let's talk

00:17:05.240 --> 00:17:07.700
about the absolute most critical, highest yield

00:17:07.700 --> 00:17:09.940
newborn complication you will see on your exams.

00:17:10.200 --> 00:17:12.380
The number one priority assessment for a baby

00:17:12.380 --> 00:17:15.200
born to a diabetic mother. Postnatal hypoglycemia.

00:17:15.440 --> 00:17:18.140
Yes. And I want to break down the cellular mechanism

00:17:18.140 --> 00:17:20.859
here, because it feels incredibly counterintuitive

00:17:20.859 --> 00:17:23.420
to students. The baby was just swimming in sugar

00:17:23.420 --> 00:17:27.099
for nine months. They are huge. They are macrosomic.

00:17:27.400 --> 00:17:29.799
Why on earth are they born with dangerously low

00:17:29.799 --> 00:17:31.720
blood sugar? Right. Let's paint the clinical

00:17:31.720 --> 00:17:35.400
picture. Imagine the moment of birth. For nine

00:17:35.400 --> 00:17:37.859
months, that fetus has been receiving a massive,

00:17:38.380 --> 00:17:40.880
continuous, flavy infusion of maternal glucose

00:17:40.880 --> 00:17:44.259
through the umbilical cord. To handle that firehose

00:17:44.259 --> 00:17:47.180
of sugar, the fetal pancreas has hypertrophy.

00:17:47.480 --> 00:17:51.180
It's huge and it's churning out massive industrial

00:17:51.180 --> 00:17:53.400
amounts of insulin. Then the baby is delivered.

00:17:53.599 --> 00:17:55.799
The obstetrician clamps and cuts the umbilical

00:17:55.799 --> 00:17:58.400
cord. In that exact fraction of a second, the

00:17:58.400 --> 00:18:00.940
maternal glucose supply is completely and totally

00:18:00.940 --> 00:18:02.980
cut off. But the baby's pancreas doesn't know

00:18:02.980 --> 00:18:05.059
the cord was cut. That is exactly the mechanism.

00:18:05.160 --> 00:18:07.460
It takes hours or even days for the newborn's

00:18:07.460 --> 00:18:09.799
hypertrophied pancreas to realize the sugar supply

00:18:09.799 --> 00:18:12.460
is gone and to down -regulate its insulin production.

00:18:12.819 --> 00:18:14.680
So for those first few critical hours of life,

00:18:14.880 --> 00:18:17.500
the newborn has astronomically high levels of

00:18:17.500 --> 00:18:20.519
circulating insulin with absolutely zero maternal

00:18:20.519 --> 00:18:22.779
glucose coming in to balance it out. So all that

00:18:22.779 --> 00:18:25.529
excess insulin acts like millions of little Pac

00:18:25.529 --> 00:18:27.890
-Men violently shoving whatever tiny amount of

00:18:27.890 --> 00:18:30.170
glucose the baby has left into the cells, stripping

00:18:30.170 --> 00:18:32.990
the bloodstream bare. Their blood sugars absolutely

00:18:32.990 --> 00:18:35.470
plummet. And glucose is the only fuel the brain

00:18:35.470 --> 00:18:39.789
can use. If left untreated, severe neonatal hypoglycemia

00:18:39.789 --> 00:18:43.329
will cause seizures, coma, and permanent irreversible

00:18:43.329 --> 00:18:46.069
brain damage. So critical. This is why, as a

00:18:46.069 --> 00:18:48.910
newborn nursery nurse, your absolute top priority

00:18:48.910 --> 00:18:51.650
for a macrosomic baby is checking that heel stick

00:18:51.650 --> 00:18:53.769
blood glue case within the first hour of life

00:18:53.769 --> 00:18:56.809
and watching for signs of hypoglycemia. Things

00:18:56.809 --> 00:19:00.849
like jitteriness, lethargy, poor feeding, a high

00:19:00.849 --> 00:19:03.750
-pitched wheat cry, or apnea. That is such a

00:19:03.750 --> 00:19:05.769
clear way to visualize it. Cut the cord, cut

00:19:05.769 --> 00:19:08.670
the sugar, but the insulin keeps pumping. Okay,

00:19:08.690 --> 00:19:11.250
let's look at expected versus concerning findings

00:19:11.250 --> 00:19:14.049
for the mother. How do we separate a normal pregnancy

00:19:14.049 --> 00:19:16.890
from a diabetic one? Expected findings are your

00:19:16.890 --> 00:19:19.369
standard, annoying pregnancy symptoms. But you

00:19:19.369 --> 00:19:21.809
also need to have the expected lab values memorized.

00:19:22.089 --> 00:19:24.210
For a pregnant client, a normal fasting blood

00:19:24.210 --> 00:19:27.089
glucose is less than 95 milligrams per deciliter.

00:19:27.210 --> 00:19:30.029
A one -hour postprandial, meaning exactly one

00:19:30.029 --> 00:19:32.569
hour after finishing a meal, should be less than

00:19:32.569 --> 00:19:35.869
140. A two -hour postprandial should be less

00:19:35.869 --> 00:19:38.970
than 120. And the hemoglobin A1c should be less

00:19:38.970 --> 00:19:42.289
than 6%. So what are the concerning cues? The

00:19:42.289 --> 00:19:44.529
text points out that classic diabetes symptoms

00:19:44.529 --> 00:19:46.970
might actually be entirely missed by the provider

00:19:46.970 --> 00:19:49.470
because they perfectly mimic normal pregnancy.

00:19:50.670 --> 00:19:53.329
Polyphagia, polydipsia, polyuria being excessively

00:19:53.329 --> 00:19:56.309
hungry, thirsty, and peeing all the time. Slow

00:19:56.309 --> 00:19:58.970
wound healing, dry skin, and visual disturbances.

00:19:59.269 --> 00:20:01.069
I mean, what pregnant woman isn't hungry and

00:20:01.069 --> 00:20:03.930
peeing all the time? Exactly. Relying on subjective

00:20:03.930 --> 00:20:06.390
symptoms is dangerous. The clinical pearl here,

00:20:06.509 --> 00:20:08.430
the thing you must look for in a clinical scenario,

00:20:08.869 --> 00:20:11.410
is objective data. A massive concerning finding

00:20:11.410 --> 00:20:14.450
is a positive discordance in fundal height. Let's

00:20:14.450 --> 00:20:16.210
explain fundal height. This is when the nurse

00:20:16.210 --> 00:20:18.410
uses a tape measure to measure from the mother's

00:20:18.410 --> 00:20:20.769
pubic bone to the top of her uterus, the fundus.

00:20:21.210 --> 00:20:23.430
After 20 weeks, the measurement in centimeters

00:20:23.430 --> 00:20:26.109
should roughly equal the week's gestation. Right.

00:20:26.250 --> 00:20:28.410
So if she's 28 weeks pregnant, she should measure

00:20:28.410 --> 00:20:31.309
about 28 centimeters. But if she's 28 weeks pregnant

00:20:31.309 --> 00:20:34.349
and measuring 34 centimeters, you have a positive

00:20:34.349 --> 00:20:37.349
discordance. She's measuring significantly larger

00:20:37.349 --> 00:20:40.410
than her gestational age dictates. You must immediately

00:20:40.410 --> 00:20:43.509
suspect macrosomia and polyhydrominoes, and what

00:20:43.509 --> 00:20:46.450
causes those? Gestational diabetes. Let's move

00:20:46.450 --> 00:20:48.589
into priority nursing actions. If you are the

00:20:48.589 --> 00:20:50.730
clinic nurse, what are you doing? Step one is

00:20:50.730 --> 00:20:53.470
screening. The tech says we do a glucose tolerance

00:20:53.470 --> 00:20:56.809
test, or GTT, prior to 24 weeks for at -risk

00:20:56.809 --> 00:20:59.450
clients, like those with PCOS or a BMI over 30.

00:20:59.640 --> 00:21:02.119
But the standard universal screening for every

00:21:02.119 --> 00:21:04.839
single pregnant woman occurs between 24 and 28

00:21:04.839 --> 00:21:07.319
weeks, and that is the one hour GTT. And you

00:21:07.319 --> 00:21:09.400
must know the parameters of the one hour GTT

00:21:09.400 --> 00:21:11.640
for your exams. This is a screening tool, not

00:21:11.640 --> 00:21:13.720
a diagnostic tool. It requires absolutely no

00:21:13.720 --> 00:21:15.359
fasting. The client comes in, drinks a highly

00:21:15.359 --> 00:21:18.119
concentrated 50 gram sugary glucola drink, and

00:21:18.119 --> 00:21:19.859
their blood is drawn exactly one hour later.

00:21:20.140 --> 00:21:23.200
And the magic number here is a 140. If the result

00:21:23.200 --> 00:21:25.700
is greater than 140 milligrams per deciliter,

00:21:26.220 --> 00:21:28.420
the nurse must flag it. That is the threshold.

00:21:28.619 --> 00:21:32.019
greater than 140 triggers the next step, which

00:21:32.019 --> 00:21:35.700
is preparing the client for the definitive diagnostic

00:21:35.700 --> 00:21:38.099
three -hour screening. I love the analogy you

00:21:38.099 --> 00:21:40.059
used earlier. The one -hour test is just the

00:21:40.059 --> 00:21:42.200
bouncer at the club. It just flags people who

00:21:42.200 --> 00:21:45.339
look suspicious. The three -hour GTT is the actual

00:21:45.339 --> 00:21:48.079
interrogator. How does the three -hour test work?

00:21:48.319 --> 00:21:50.599
For the three -hour GPP, the rules change entirely.

00:21:50.700 --> 00:21:53.359
The client absolutely must fast overnight. They

00:21:53.359 --> 00:21:54.740
come into the clinic in the morning and get a

00:21:54.740 --> 00:21:57.019
baseline fasting blood draw. Then they drink

00:21:57.019 --> 00:21:59.460
an even heavier 100 gram glucose load. Then they

00:21:59.460 --> 00:22:00.619
have to sit in the waiting room and their blood

00:22:00.619 --> 00:22:02.480
is drawn at exactly one hour, two hours, and

00:22:02.480 --> 00:22:04.640
three hours post ingestion. And to confirm a

00:22:04.640 --> 00:22:07.809
clinical diagnosis of gestational two or more

00:22:07.809 --> 00:22:10.009
of those four values must be out of range. Let

00:22:10.009 --> 00:22:11.890
me list those ranges for our listeners to visualize

00:22:11.890 --> 00:22:15.190
and memorize. Fasting greater than 95, one hour

00:22:15.190 --> 00:22:18.349
greater than 180, two hour greater than 155,

00:22:18.609 --> 00:22:21.130
three hour greater than 140. If two of those

00:22:21.130 --> 00:22:24.029
hit they have official GDM. So once the doctor

00:22:24.029 --> 00:22:26.490
makes that diagnosis, what is the nursing treatment

00:22:26.490 --> 00:22:29.480
cascade? Treatment step one is always, always

00:22:29.480 --> 00:22:31.720
non -pharmacological first, assuming the numbers

00:22:31.720 --> 00:22:34.799
aren't wildly out of control. We start with nutritional

00:22:34.799 --> 00:22:37.740
counseling and moderate exercise. The dietary

00:22:37.740 --> 00:22:40.079
breakdown the text provides is very specific

00:22:40.079 --> 00:22:44.119
and highly testable. 30 to 35 kilocalories per

00:22:44.119 --> 00:22:46.779
kilogram of body weight spread evenly throughout

00:22:46.779 --> 00:22:49.440
the day in three meals and two to three snacks

00:22:49.440 --> 00:22:52.019
to prevent spikes and crashes. The macronutrient

00:22:52.019 --> 00:22:54.839
split is also specific. 40 percent carbohydrates,

00:22:55.059 --> 00:22:58.789
20 percent protein and 40 plus a massive focus

00:22:58.789 --> 00:23:01.970
on complex, high -fiber carbohydrates, because

00:23:01.970 --> 00:23:04.130
fiber physically slows down the digestion and

00:23:04.130 --> 00:23:06.210
absorption of glucose in the gut, preventing

00:23:06.210 --> 00:23:08.869
those sharp blood sugar spikes. But if diet and

00:23:08.869 --> 00:23:10.829
exercise aren't enough to keep the fasting glucose

00:23:10.829 --> 00:23:13.509
under 95, we move to treatment step two, which

00:23:13.509 --> 00:23:15.529
is pharmacological intervention. And this is

00:23:15.529 --> 00:23:16.789
where we have to look closely at the different

00:23:16.789 --> 00:23:19.230
types of diabetes. For type two, they either

00:23:19.230 --> 00:23:21.309
continue their pre -pregnancy regimen, switch

00:23:21.309 --> 00:23:23.869
to an oral medication like Glebaride or Metformin,

00:23:23.970 --> 00:23:26.589
or start insulin. The target blood glucose is

00:23:26.589 --> 00:23:29.670
exceptionally tight, between 3 .0 and 7 .0 millimoles

00:23:29.670 --> 00:23:33.910
per liter, or 55 to 126 milligrams per deciliter.

00:23:34.210 --> 00:23:37.740
And here's where we hit one of the absolute biggest,

00:23:37.759 --> 00:23:40.619
most devious exam traps regarding type 1 diabetes.

00:23:41.160 --> 00:23:43.720
I want everyone listening to pause and focus

00:23:43.720 --> 00:23:46.339
on this because it shows up on the NCLEX all

00:23:46.339 --> 00:23:48.960
the time. Oh yeah, a client with pregestational

00:23:48.960 --> 00:23:51.779
type 1 diabetes will actually need a decreased

00:23:51.779 --> 00:23:54.940
dose insulin during the first trimester and then

00:23:54.940 --> 00:23:57.240
they will need a massively increased dose in

00:23:57.240 --> 00:23:59.579
the second and third trimesters. Okay, I have

00:23:59.579 --> 00:24:01.700
to stop and play the role of the confused nursing

00:24:01.700 --> 00:24:03.779
student here because that feels like a trick

00:24:03.779 --> 00:24:07.490
question. Why on earth Would a type 1 diabetic

00:24:07.490 --> 00:24:10.769
need less insulin in the first trimester? They

00:24:10.769 --> 00:24:12.869
are pregnant, they are growing a human being,

00:24:13.089 --> 00:24:15.369
their metabolic rate is increasing. Shouldn't

00:24:15.369 --> 00:24:18.049
they need more of everything? It absolutely feels

00:24:18.049 --> 00:24:20.309
like a trick, which is exactly why it is a classic

00:24:20.309 --> 00:24:23.369
NCLEX trap. The test writers want to see if you

00:24:23.369 --> 00:24:25.730
understand the physiology or if you are just

00:24:25.730 --> 00:24:28.170
guessing. Think about what actually happens in

00:24:28.170 --> 00:24:30.529
the first trimester of pregnancy. Number one,

00:24:30.869 --> 00:24:33.490
the rapidly developing fetus is vigorously utilizing

00:24:33.490 --> 00:24:36.009
maternal glucose for its initial cellular development,

00:24:36.569 --> 00:24:38.430
naturally siphoning sugar out of the mother's

00:24:38.430 --> 00:24:41.029
blood. OK, so the baby is acting like a little

00:24:41.029 --> 00:24:44.599
glucose vacuum. Exactly. Number two, what is

00:24:44.599 --> 00:24:47.920
the hallmark universal symptom of the first trimester?

00:24:48.180 --> 00:24:50.900
Nausea and vomiting. Severe morning sickness.

00:24:51.279 --> 00:24:53.779
Right. The mother is frequently nauseous. She's

00:24:53.779 --> 00:24:56.039
eating significantly less. She has food aversions

00:24:56.039 --> 00:24:58.599
and she's often vomiting up what little she does

00:24:58.599 --> 00:25:01.200
manage to eat. So her overall intake of carbohydrates

00:25:01.200 --> 00:25:04.099
drops off a cliff. Oh, I see it now. If she continues

00:25:04.099 --> 00:25:07.000
injecting her normal pre -pregnancy dose of insulin

00:25:07.000 --> 00:25:09.720
while simultaneously eating way fewer carbs,

00:25:09.980 --> 00:25:12.519
Andee having the fetus vacuum up the glucose

00:25:12.519 --> 00:25:15.640
in her blood, she's going to crash. Precisely.

00:25:15.759 --> 00:25:18.420
She is at a massive critical risk for severe

00:25:18.420 --> 00:25:21.799
maternal hypoglycemia. Her blood sugar will absolutely

00:25:21.799 --> 00:25:24.220
tank. So to keep her safe, the provider must

00:25:24.220 --> 00:25:26.759
decrease her exogenous insulin requirement early

00:25:26.759 --> 00:25:29.059
on. That is brilliant clinical reasoning. It

00:25:29.059 --> 00:25:31.339
isn't just a fact to memorize. It is a mechanism.

00:25:31.559 --> 00:25:34.180
And then once she hits the second trimester,

00:25:34.480 --> 00:25:36.740
the nausea fades, she starts eating again, and

00:25:36.740 --> 00:25:38.539
more importantly, the placenta gets huge and

00:25:38.539 --> 00:25:41.420
starts pumping out massive amounts of HPL. Yep.

00:25:41.920 --> 00:25:44.160
The insulin resistance skyrockets and suddenly

00:25:44.160 --> 00:25:47.000
her insulin needs shoot way, way up. You have

00:25:47.000 --> 00:25:49.059
to understand the timeline of the symptoms and

00:25:49.059 --> 00:25:51.500
the hormones to get the medication titration

00:25:51.500 --> 00:25:55.140
right. That is how you pass the NCLE -X. Absolutely.

00:25:55.279 --> 00:25:57.960
Moving on to intrapartum, which means during

00:25:57.960 --> 00:26:01.529
labor and postpartum care. The text notes we

00:26:01.529 --> 00:26:04.130
should consider inducing labor before week 40.

00:26:04.849 --> 00:26:07.549
Often providers will induce around 39 weeks if

00:26:07.549 --> 00:26:10.109
the client is on insulin, or even earlier if

00:26:10.109 --> 00:26:12.490
there is suspected fetal macrosomia to prevent

00:26:12.490 --> 00:26:14.970
that shoulder dystocia we talked about. During

00:26:14.970 --> 00:26:18.170
labor, they need continuous CTG cardiotocography

00:26:18.170 --> 00:26:21.650
monitoring. Why? Because the placenta of a diabetic

00:26:21.650 --> 00:26:24.109
mother degrades faster, putting the fetus at

00:26:24.109 --> 00:26:26.410
high risk for distress during the contractions

00:26:26.410 --> 00:26:29.019
and postpartum. The absolute priority postpartum

00:26:29.019 --> 00:26:31.359
is exactly what we discussed earlier, monitoring

00:26:31.359 --> 00:26:33.839
neonatal glucose levels with heel sticks to catch

00:26:33.839 --> 00:26:37.220
that hypoglycemic crash. We also vigorously encourage

00:26:37.220 --> 00:26:39.880
early and frequent breastfeeding. Colostrum,

00:26:39.920 --> 00:26:41.720
the early breast milk, provides the baby with

00:26:41.720 --> 00:26:44.319
an immediate, easily digestible source of glucose

00:26:44.319 --> 00:26:46.299
to stabilize their blood sugar. And for the mother,

00:26:46.660 --> 00:26:48.700
her placenta is gone, so the HPO is gone. Her

00:26:48.700 --> 00:26:50.970
insulin resistance should drop immediately. Yes,

00:26:51.150 --> 00:26:53.529
her insulin needs plummet the moment the placenta

00:26:53.529 --> 00:26:56.650
is delivered. But you must test her fasting glucose

00:26:56.650 --> 00:26:59.690
and HKONC at her six -week postpartum visit to

00:26:59.690 --> 00:27:02.609
see if the GDM truly resolved or if the pancreatic

00:27:02.609 --> 00:27:04.630
damage was permanent and she is transitioning

00:27:04.630 --> 00:27:07.210
into overt type 2 diabetes. Okay, let's lock

00:27:07.210 --> 00:27:09.269
this entire section in with some memory anchors.

00:27:09.730 --> 00:27:11.589
When you're sitting in your exam and a question

00:27:11.589 --> 00:27:14.650
about dietary rules pops up, I want you to visualize

00:27:14.650 --> 00:27:18.809
the 424 rule. 40 % carbs, 20 % protein, 40 %

00:27:18.809 --> 00:27:22.250
fat. 424. And for the one -hour screening cutoff,

00:27:22.589 --> 00:27:25.869
memorize the symbol phrase. 140 is the one -hour

00:27:25.869 --> 00:27:28.049
limit to know. If that one -hour Grucula test

00:27:28.049 --> 00:27:30.750
comes back over 140, you are picking up the phone,

00:27:31.009 --> 00:27:32.690
calling the provider, and setting up the three

00:27:32.690 --> 00:27:35.289
-hour diagnostic test. Let's summarize the gestational

00:27:35.289 --> 00:27:37.589
diabetes section. We promised you the 80 -20

00:27:37.589 --> 00:27:40.069
rule. If you only remember five things from this

00:27:40.069 --> 00:27:42.349
massive topic for your exams, make it these five.

00:27:42.730 --> 00:27:46.029
Number one, human placental lactogen, or HPL,

00:27:46.230 --> 00:27:48.309
is the placental hormone that intentionally causes

00:27:48.309 --> 00:27:50.670
insulin resistance in the second and third trimesters

00:27:50.670 --> 00:27:54.470
to feed the baby. Number two, a one -hour GTT

00:27:54.470 --> 00:27:57.650
greater than 140 milligrams per deciliter demands

00:27:57.650 --> 00:28:00.930
a three -hour GTT follow -up. The one hour is

00:28:00.930 --> 00:28:03.309
the screen, the three hour is the diagnosis.

00:28:03.529 --> 00:28:06.420
Number three, Type 1 diabetics require a decrease

00:28:06.420 --> 00:28:08.759
in their insulin dose during the first trimester

00:28:08.759 --> 00:28:12.240
due to nausea and fetal glucose use to prevent

00:28:12.240 --> 00:28:15.859
severe hypoglycemia. Number four, fetal macrosomia

00:28:15.859 --> 00:28:18.839
and devastating neonatal hypoglycemia are the

00:28:18.839 --> 00:28:21.039
highest risk complications that you must monitor

00:28:21.039 --> 00:28:23.579
for. And number five, your immediate postpartum

00:28:23.579 --> 00:28:26.240
priority is monitoring the newborn's heel stick

00:28:26.240 --> 00:28:29.740
glucose. And your maternal priority is reevaluating

00:28:29.740 --> 00:28:32.460
her glucose at six weeks postpartum. That is

00:28:32.460 --> 00:28:35.079
high yield exam passing gold right there. Okay,

00:28:35.339 --> 00:28:37.279
we are going to smoothly transition away from

00:28:37.279 --> 00:28:40.180
the pancreas. We just talked about how HPL alters

00:28:40.180 --> 00:28:42.480
maternal metabolism, and we briefly touched on

00:28:42.480 --> 00:28:44.859
how first trimester nausea can affect blood sugar.

00:28:44.970 --> 00:28:46.970
Now, we're going to look at that early pregnancy

00:28:46.970 --> 00:28:48.250
nausea, but we're going to look at what happens

00:28:48.250 --> 00:28:50.150
when it crosses the line from annoying morning

00:28:50.150 --> 00:28:52.789
sickness into an acutely dangerous, life -threatening

00:28:52.789 --> 00:28:55.130
metabolic crisis. Let's dive into topic number

00:28:55.130 --> 00:28:57.849
two, hyperemesis gravidarum, or HG. Let me be

00:28:57.849 --> 00:29:00.990
very clear. Hyperemesis gravidarum is a severe

00:29:00.990 --> 00:29:03.970
pathological condition. It affects up to 3 %

00:29:03.970 --> 00:29:06.349
of all pregnancies and frequently requires acute

00:29:06.349 --> 00:29:09.710
hospitalization. It is vital that you, as a clinician,

00:29:09.829 --> 00:29:12.410
do not dismiss this as just bad morning sickness.

00:29:12.789 --> 00:29:16.319
Morning sickness is physiological. HG is pathological.

00:29:16.740 --> 00:29:19.490
Let's hit the path of physiology. What exactly

00:29:19.490 --> 00:29:22.049
causes a woman's nausea to become so extreme

00:29:22.049 --> 00:29:23.910
that she cannot keep down a sip of water for

00:29:23.910 --> 00:29:27.049
weeks? The sources point to massive abnormal

00:29:27.049 --> 00:29:30.529
elevations in HCG human chorionic gonadotropin.

00:29:30.910 --> 00:29:32.849
This is the hormone that turns a pregnancy test

00:29:32.849 --> 00:29:35.750
positive. Yes, HCG is a primary driver of the

00:29:35.750 --> 00:29:38.490
nausea center in the brain and the text specifically

00:29:38.490 --> 00:29:41.130
links these massive HCG spikes to two phenomena.

00:29:41.509 --> 00:29:43.650
Multiple gestations like twins or triplets where

00:29:43.650 --> 00:29:45.390
you simply have more placental tissue pumping

00:29:45.390 --> 00:29:49.130
out the hormone and more dangerously Let's take

00:29:49.130 --> 00:29:51.250
a quick detour and explain what a molar pregnancy

00:29:51.250 --> 00:29:53.769
is because that shows up on exams all the time

00:29:53.769 --> 00:29:58.029
as a distractor or a related concept. A hydatidiform

00:29:58.029 --> 00:30:00.930
mole, or molar pregnancy, is basically a genetic

00:30:00.930 --> 00:30:03.869
error during fertilization. Instead of growing

00:30:03.869 --> 00:30:06.250
a viable embryo, the tissue that was supposed

00:30:06.250 --> 00:30:08.990
to become the placenta grows into an abnormal,

00:30:09.450 --> 00:30:12.359
non -cancerous tumor inside the uterus. And if

00:30:12.359 --> 00:30:14.000
you look at it on an ultrasound, it looks like

00:30:14.000 --> 00:30:16.500
a cluster of grapes. Because it's placental -type

00:30:16.500 --> 00:30:19.440
tissue growing out of control, it secretes astronomical,

00:30:19.819 --> 00:30:22.660
dangerously high levels of HCG, far higher than

00:30:22.660 --> 00:30:25.019
a normal pregnancy. So if a patient has a molar

00:30:25.019 --> 00:30:27.599
pregnancy, their nausea is going to be incredibly

00:30:27.599 --> 00:30:30.109
violent. The sources also mention an increase

00:30:30.109 --> 00:30:33.589
in estradiol, genetic predispositions, and surprisingly,

00:30:33.930 --> 00:30:36.210
infections with Helicobacter pylori or H. pylori.

00:30:36.650 --> 00:30:38.970
Now, I have to ask for the mechanism here. H.

00:30:39.029 --> 00:30:41.390
pylori is the bacteria famous for causing stomach

00:30:41.390 --> 00:30:44.250
ulcers. Why on earth would a stomach bug cause

00:30:44.250 --> 00:30:46.730
extreme pregnancy vomiting? It's a fascinating

00:30:46.730 --> 00:30:49.849
physiological intersection. H. pylori alters

00:30:49.849 --> 00:30:52.549
the gastric pH and causes baseline inflammation

00:30:52.549 --> 00:30:55.500
of the stomach lining. When you take a stomach

00:30:55.500 --> 00:30:58.279
that is already inflamed and infected by H. pylori,

00:30:58.599 --> 00:31:00.940
and then you dump massive amounts of pregnancy

00:31:00.940 --> 00:31:03.799
hormones like estrogen and HCG on top of it,

00:31:03.980 --> 00:31:05.940
the stomach becomes hypersensitized. Oh, that

00:31:05.940 --> 00:31:07.920
makes sense. Furthermore, there is a theory of

00:31:07.920 --> 00:31:10.240
cross -reactivity, where the immune response

00:31:10.240 --> 00:31:13.019
to the H. pylori infection inadvertently amplifies

00:31:13.019 --> 00:31:15.680
the hormonal nausea triggers in the brain. If

00:31:15.680 --> 00:31:19.180
a patient has severe intractable HG, testing

00:31:19.180 --> 00:31:21.539
them for an underlying H. pylori infection is

00:31:21.539 --> 00:31:24.640
a critical diagnostic step. That is why. The

00:31:24.640 --> 00:31:26.920
risk factors to watch for are null -apparice

00:31:26.920 --> 00:31:29.359
clients, meaning this is their first pregnancy,

00:31:29.819 --> 00:31:31.720
so their body has never been exposed to these

00:31:31.720 --> 00:31:34.380
hormone levels before, and clients with a previous

00:31:34.380 --> 00:31:37.019
history of HG in a prior pregnancy. But let's

00:31:37.019 --> 00:31:38.940
talk about why it matters clinically and why

00:31:38.940 --> 00:31:41.720
we need to slow down and really look at the psychosocial

00:31:41.720 --> 00:31:45.839
impact here. HG leads to severe clinical dehydration

00:31:45.839 --> 00:31:48.319
and profound electrolyte imbalances, which we'll

00:31:48.319 --> 00:31:51.440
discuss. But the psychosocial trauma is staggering.

00:31:51.720 --> 00:31:54.839
Imagine this clinical vignette. You have a 24

00:31:54.839 --> 00:31:57.380
-year -old patient who's been vomiting 15 to

00:31:57.380 --> 00:32:00.519
20 times a day for six straight weeks. She cannot

00:32:00.519 --> 00:32:03.000
work. She cannot care for her other children.

00:32:03.059 --> 00:32:05.059
She literally cannot leave the bathroom floor.

00:32:05.539 --> 00:32:08.000
The smell of her partner's soap makes her violently

00:32:08.000 --> 00:32:11.359
ill. She's experiencing profound social isolation.

00:32:11.519 --> 00:32:13.920
And on top of that, she goes to the ER and a

00:32:13.920 --> 00:32:15.799
provider who doesn't understand HG tells her,

00:32:15.880 --> 00:32:17.440
well, if pregnancy is tough, try some ginger

00:32:17.440 --> 00:32:20.140
ale and saltines. The medical gaslighting is

00:32:20.140 --> 00:32:22.819
immense. Horrible. These women experience deep

00:32:22.819 --> 00:32:25.680
depression, suicidal ideation, and even legitimate

00:32:25.680 --> 00:32:28.240
post -traumatic stress disorder from the sheer

00:32:28.240 --> 00:32:30.660
trauma of relentless, uncontrollable vomiting.

00:32:30.670 --> 00:32:34.029
and starvation. As a nurse, validating their

00:32:34.029 --> 00:32:35.730
suffering, telling them, I believe you, this

00:32:35.730 --> 00:32:37.509
is not normal, and we are going to fix this,

00:32:37.750 --> 00:32:39.809
is just as important as the IV fluids you're

00:32:39.809 --> 00:32:42.710
about to hang. That is so true. Empathy is a

00:32:42.710 --> 00:32:45.490
vital sign. So as a nurse, how do we separate

00:32:45.490 --> 00:32:48.490
the expected versus concerning? Your textbooks

00:32:48.490 --> 00:32:50.769
give us expected normal lab values that you need

00:32:50.769 --> 00:32:53.509
to have memorized. Potassium should be 3 .5 to

00:32:53.509 --> 00:32:58.769
5 mGqL, sodium 136 to 145 mGdL, calcium 9 to

00:32:58.769 --> 00:33:03.730
10 .5 mGdL. Leukof 74 to 106mgdL. Those are expected

00:33:03.730 --> 00:33:05.970
in a healthy pregnancy. The concerning priority

00:33:05.970 --> 00:33:08.529
findings are persistent nausea and vomiting coupled

00:33:08.529 --> 00:33:10.650
with objective signs of clinical dehydration.

00:33:11.349 --> 00:33:13.490
You are assessing the patient for dry mucus membranes.

00:33:13.609 --> 00:33:15.869
Look at her mouth, lips, and eyes. Look for skin

00:33:15.869 --> 00:33:18.410
tinting. Ask about dizziness upon standing, which

00:33:18.410 --> 00:33:21.069
indicates orthostatic hypotension from low blood

00:33:21.069 --> 00:33:23.309
volume. You also need to assess her urine output.

00:33:23.599 --> 00:33:26.079
dark concentrated or strong smelling urine or

00:33:26.079 --> 00:33:27.880
very infrequent urination means the kidneys are

00:33:27.880 --> 00:33:29.700
panicking. They're holding on to whatever tiny

00:33:29.700 --> 00:33:31.440
amount of fluid is left in the body to maintain

00:33:31.440 --> 00:33:33.859
blood pressure. You'll also see a rapid heart

00:33:33.859 --> 00:33:36.420
rate tachycardia. The heart is trying to pump

00:33:36.420 --> 00:33:39.279
a significantly lower volume of dehydrated blood

00:33:39.279 --> 00:33:41.420
around the body, so it has to beat faster to

00:33:41.420 --> 00:33:44.500
maintain perfusion. And a very late, incredibly

00:33:44.500 --> 00:33:47.859
dangerous sign is confusion or lethargy. That

00:33:47.859 --> 00:33:50.559
indicates severe electrolyte derangement or cerebral

00:33:50.559 --> 00:33:52.920
dehydration. This brings us to the priority nursing

00:33:52.920 --> 00:33:56.299
actions. And there is a very specific objective

00:33:56.299 --> 00:33:58.160
assessment tool mentioned in the text that you

00:33:58.160 --> 00:34:03.400
need to know. The PUQE. score. PUQE, the Pregnancy

00:34:03.400 --> 00:34:05.839
Unique Quantification of Emesis score. Right.

00:34:05.960 --> 00:34:08.699
To use the PQE score, the nurse assesses three

00:34:08.699 --> 00:34:10.980
specific things over the past 12 -hour window.

00:34:11.539 --> 00:34:13.760
The duration of nausea and hours, the absolute

00:34:13.760 --> 00:34:15.820
number of actual vomiting episodes, and the number

00:34:15.820 --> 00:34:18.440
of dry -heaver retching episodes. Okay, let me

00:34:18.440 --> 00:34:20.599
provide an analogy here. In neurology, we use

00:34:20.599 --> 00:34:22.699
the Glasgow Coma Scale to assess consciousness.

00:34:23.059 --> 00:34:24.719
We don't just say, he looks pretty out of it.

00:34:24.920 --> 00:34:27.380
We assign numbers to eye -opening and motor response

00:34:27.380 --> 00:34:30.179
to get an objective score. The PUQE score is

00:34:30.179 --> 00:34:32.139
essentially the Glasgow Coma Scale for throwing

00:34:32.139 --> 00:34:34.699
up. That is a brilliant comparison. And it's

00:34:34.699 --> 00:34:36.619
so important because, as we mentioned with the

00:34:36.619 --> 00:34:39.579
medical gas lighting, relying on a 1 to 10 pain

00:34:39.579 --> 00:34:42.340
scale for nausea is highly subjective. A patient

00:34:42.340 --> 00:34:44.840
might say her nausea is a 10, and a dismissive

00:34:44.840 --> 00:34:46.699
provider might think she's exaggerating. But

00:34:46.699 --> 00:34:50.179
the PUQE score removes the subjectivity. It forces

00:34:50.179 --> 00:34:53.739
the clinician to quantify the danger. If you,

00:34:54.059 --> 00:34:56.619
the nurse, document that the patient has vomited

00:34:56.619 --> 00:34:59.579
eight times in 12 hours, dry heaved six times,

00:35:00.000 --> 00:35:02.440
and experienced continuous nausea for 10 hours.

00:35:02.880 --> 00:35:07.070
That generates a severe PUQE score. It mandates

00:35:07.070 --> 00:35:09.550
medical intervention. It empowers the nurse to

00:35:09.550 --> 00:35:12.550
advocate with hard, objective data. Doctor, her

00:35:12.550 --> 00:35:15.269
PUQE score is severe. She is hypovolemic. We

00:35:15.269 --> 00:35:17.230
need admission orders. Exactly. It protects the

00:35:17.230 --> 00:35:18.829
patient. So what orders are we anticipating?

00:35:18.949 --> 00:35:21.389
You need to draw labs immediately. A CBC to look

00:35:21.389 --> 00:35:23.750
for hemoconcentration because her blood is literally

00:35:23.750 --> 00:35:26.750
thicker due to fluid loss. A comprehensive metabolic

00:35:26.750 --> 00:35:28.590
panel to look at those electrolytes, specifically

00:35:28.590 --> 00:35:31.389
potassium and sodium. and an H. pylori screening.

00:35:31.530 --> 00:35:32.989
Let's talk about potassium, because this is a

00:35:32.989 --> 00:35:36.429
massive NCLEX safety priority. When you vomit,

00:35:36.710 --> 00:35:38.829
you are losing massive amounts of gastric acid,

00:35:39.210 --> 00:35:41.969
which is rich in potassium. Right. And hypokalemia

00:35:41.969 --> 00:35:45.570
low potassium is deadly. Potassium is the electrolyte

00:35:45.570 --> 00:35:47.949
responsible for the repolarization of the cardiac

00:35:47.949 --> 00:35:50.989
muscle cells. Without sufficient potassium, the

00:35:50.989 --> 00:35:53.050
electrical action potential of the heart becomes

00:35:53.050 --> 00:35:56.690
unstable. Severe hypokalemia from HG can cause

00:35:56.690 --> 00:35:59.199
fatal cardiac arrhythmias. Wait, really? from

00:35:59.199 --> 00:36:01.719
throwing up. Yes. This patient could literally

00:36:01.719 --> 00:36:04.260
go into cardiac arrest from throwing up. That

00:36:04.260 --> 00:36:06.820
is why checking the potassium level is an absolute

00:36:06.820 --> 00:36:10.300
priority. Wow. OK. So for treatments, we're immediately

00:36:10.300 --> 00:36:13.019
starting IV fluids, usually lactated ringers

00:36:13.019 --> 00:36:15.760
or normal saline, to correct the dehydration.

00:36:15.929 --> 00:36:18.690
In severe refractory cases where the patient

00:36:18.690 --> 00:36:20.829
cannot tolerate anything by mouth for weeks,

00:36:21.409 --> 00:36:23.929
they might need TPN total parenteral nutrition.

00:36:24.449 --> 00:36:26.590
This is IV nutrition delivered through a central

00:36:26.590 --> 00:36:29.210
line directly into the bloodstream, bypassing

00:36:29.210 --> 00:36:32.329
the paralyzed inflamed gut entirely. Pharmacologically,

00:36:32.469 --> 00:36:35.110
we are giving potent antimetics like undansetron

00:36:35.110 --> 00:36:37.590
or promethazine, antihistamines which act on

00:36:37.590 --> 00:36:39.750
the vestibular system, and high dose vitamin

00:36:39.750 --> 00:36:42.190
B6, which has been shown to reduce pregnancy

00:36:42.190 --> 00:36:45.139
nausea. And do not neglect the non -pharmacological

00:36:45.139 --> 00:36:47.860
nursing care. Help the client identify and avoid

00:36:47.860 --> 00:36:50.900
sensory triggers. Use ginger supplements, which

00:36:50.900 --> 00:36:53.280
actually have robust clinical evidence for reducing

00:36:53.280 --> 00:36:56.440
mild to moderate nausea. Try acupressure wristbands.

00:36:57.059 --> 00:36:59.559
And crucially, provide that psychological support.

00:36:59.739 --> 00:37:02.679
Now let's talk about the top exam traps for HG.

00:37:02.880 --> 00:37:05.440
I'm going to give you a mock NCLE -X question

00:37:05.440 --> 00:37:08.260
scenario right now. A client at eight weeks gestation

00:37:08.260 --> 00:37:10.260
presents to the emergency department with severe

00:37:10.260 --> 00:37:12.500
unremitting nausea, vomiting 10 times a day,

00:37:12.739 --> 00:37:15.019
and a weight loss of eight pounds. Which of the

00:37:15.019 --> 00:37:17.280
following provider orders should the nurse anticipate?

00:37:17.699 --> 00:37:20.260
Option A, instruct the client to eat dry saltine

00:37:20.260 --> 00:37:22.539
crackers before getting out of bed. Option B,

00:37:22.760 --> 00:37:24.900
administer a one hour glucose tolerance test.

00:37:25.159 --> 00:37:27.679
Option C, prepare the client for a pelvic ultrasound.

00:37:27.980 --> 00:37:30.920
or option D, administer oral potassium supplements.

00:37:31.320 --> 00:37:33.260
Oh, that's a tricky one. Let's break it down

00:37:33.260 --> 00:37:35.579
using the distractor answer strategy. Option

00:37:35.579 --> 00:37:37.739
A, the salting crackers. That's the ultimate

00:37:37.739 --> 00:37:39.639
distractor. That's the treatment for normal morning

00:37:39.639 --> 00:37:42.019
sickness. This patient has lost eight pounds

00:37:42.019 --> 00:37:45.039
and is vomiting 10 times a day. She is way past

00:37:45.039 --> 00:37:47.980
crackers. Option B, the GTT, is for diabetes

00:37:47.980 --> 00:37:50.869
at 24 weeks. Completely irrelevant here. Option

00:37:50.869 --> 00:37:53.210
D oral potassium while she's following 10 times

00:37:53.210 --> 00:37:55.329
a day if you give her an oral pill She's gonna

00:37:55.329 --> 00:37:58.070
throw it right back up exactly which leaves option

00:37:58.070 --> 00:38:00.429
C Prepare the client for a pelvic ultrasound.

00:38:00.650 --> 00:38:03.250
Why? Because you must identify the underlying

00:38:03.250 --> 00:38:06.349
cause of the abnormally high HCG causing the

00:38:06.349 --> 00:38:08.929
hyperemesis. You are anticipating an ultrasound

00:38:08.929 --> 00:38:12.150
to check for twins or more dangerously, that

00:38:12.150 --> 00:38:14.909
high -date form mole we discussed. High gag means

00:38:14.909 --> 00:38:17.250
high HCG. You have to look inside the uterus

00:38:17.250 --> 00:38:19.150
to see what is producing it. That's fantastic

00:38:19.150 --> 00:38:21.050
logic. Let's get some memory anchors for this

00:38:21.050 --> 00:38:23.909
section. For the PUQE score criteria, remember

00:38:23.909 --> 00:38:28.989
the acronym, VHD vomiting, heaving. VHHD over

00:38:28.989 --> 00:38:31.750
a 12 -hour window. And as the expert just said,

00:38:31.929 --> 00:38:33.889
the ultimate hook to remember the etiology is

00:38:33.889 --> 00:38:36.570
high HDG equals high GAG. Look for the mole.

00:38:36.650 --> 00:38:38.530
Look for the twins. All right. Let's solidify

00:38:38.530 --> 00:38:40.530
the five most important things to remember about

00:38:40.530 --> 00:38:43.860
hyperremesis gravidarum for your exams. Number

00:38:43.860 --> 00:38:47.019
one, HG is pathological, not physiological, morning

00:38:47.019 --> 00:38:50.380
sickness. It is severe, persistent, nausea and

00:38:50.380 --> 00:38:53.340
vomiting, leading to clinical dehydration, starvation,

00:38:53.639 --> 00:38:56.579
and dangerous electrolyte shifts. Number two,

00:38:57.019 --> 00:38:59.460
elevated HCG, frequently from multiple gestations

00:38:59.460 --> 00:39:02.179
or a molar pregnancy, is a primary culprit you

00:39:02.179 --> 00:39:04.869
must investigate via ultrasound. Number three,

00:39:05.110 --> 00:39:07.110
you must monitor the metabolic panel and know

00:39:07.110 --> 00:39:09.809
the normal versus abnormal ranges for potassium.

00:39:10.409 --> 00:39:12.809
Remember, low potassium causes lethal cardiac

00:39:12.809 --> 00:39:16.190
arrhythmias. Number four, the PUQE score standardizes

00:39:16.190 --> 00:39:18.630
the assessment of HG severity by objectively

00:39:18.630 --> 00:39:20.949
measuring vomiting, heaving, and nausea duration

00:39:20.949 --> 00:39:23.570
over a 12 -hour window. And number five, priority

00:39:23.570 --> 00:39:25.610
treatment is fluid and electrolyte replacement

00:39:25.610 --> 00:39:28.090
via IV, potent antibiotics, and in the worst

00:39:28.090 --> 00:39:31.960
cases, TPN to bypass the gut. Excellent. We're

00:39:31.960 --> 00:39:34.460
moving methodically through these endocrine disasters,

00:39:34.880 --> 00:39:36.860
and you are building a massive foundation of

00:39:36.860 --> 00:39:39.139
clinical judgment. We're going to pivot one last

00:39:39.139 --> 00:39:41.800
time, and we're going to use a concept we just

00:39:41.800 --> 00:39:43.800
learned to build a bridge to our final topic.

00:39:44.619 --> 00:39:47.739
We just talked extensively about how ECG levels

00:39:47.739 --> 00:39:50.900
spike in early pregnancy, causing nausea. Well,

00:39:50.940 --> 00:39:54.559
it turns out, at a molecular level, ECG has another

00:39:54.559 --> 00:39:57.289
trick up its sleeve. It does, and it's a fascinating

00:39:57.289 --> 00:40:00.590
quirk of human biology. At a molecular structural

00:40:00.590 --> 00:40:03.469
level, the HCG hormone looks very, very similar

00:40:03.469 --> 00:40:06.130
to TSH thyroid stimulating hormone. They share

00:40:06.130 --> 00:40:08.690
a nearly identical alpha subunit. OK, so they

00:40:08.690 --> 00:40:10.610
look like identical twins to the body's receptors.

00:40:11.030 --> 00:40:14.690
Exactly. So as HCG levels rise rapidly in early

00:40:14.690 --> 00:40:17.010
pregnancy to support the fetus, the mother's

00:40:17.010 --> 00:40:20.210
thyroid gland gets confused. The HCG binds to

00:40:20.210 --> 00:40:22.349
the thyroid's receptors, pretending to be TSH,

00:40:22.570 --> 00:40:24.590
and tricks the thyroid into thinking it's being

00:40:24.590 --> 00:40:26.760
ordered to work. work harder. This leads to an

00:40:26.760 --> 00:40:29.639
increase in T4 hormone secretion and a temporary

00:40:29.639 --> 00:40:31.760
physiological enlargement of the thyroid gland.

00:40:32.119 --> 00:40:34.599
This physiological quark provides the perfect

00:40:34.599 --> 00:40:37.659
organic transition to explore the metabolic engines

00:40:37.659 --> 00:40:41.519
of pregnancy. Topic number three, thyroid disorders.

00:40:42.239 --> 00:40:45.099
Let's start with the high yield core for hypothyroidism.

00:40:45.210 --> 00:40:49.349
an underactive thyroid. The text says overt hypothyroidism

00:40:49.349 --> 00:40:51.730
affects about three to five percent of pregnancies.

00:40:52.349 --> 00:40:54.769
We already know there's a massive increased demand

00:40:54.769 --> 00:40:56.949
on the thyroid after implantation because the

00:40:56.949 --> 00:40:59.309
metabolic rate of the mother increases. But there

00:40:59.309 --> 00:41:02.309
is a second highly testable factor here, estrogen.

00:41:02.750 --> 00:41:05.170
Estrogen is surging during pregnancy. What does

00:41:05.170 --> 00:41:07.230
it do to the thyroid? High levels of pregnancy

00:41:07.230 --> 00:41:09.469
estrogen trigger the liver to increase the production

00:41:09.469 --> 00:41:11.530
of something called thyroid binding globulin

00:41:11.530 --> 00:41:15.320
or TBG. Now binding is the key word here. When

00:41:15.320 --> 00:41:18.840
thyroid hormones, T3 and T4, are bound to these

00:41:18.840 --> 00:41:20.920
proteins in the bloodstream, they're inactive,

00:41:21.059 --> 00:41:23.400
they're handcuffed. They cannot enter the body's

00:41:23.400 --> 00:41:25.760
cells to do their metabolic job. Oh, wow. So

00:41:25.760 --> 00:41:28.119
because estrogen creates a massive army of these

00:41:28.119 --> 00:41:30.440
binding proteins, the thyroid has to work twice

00:41:30.440 --> 00:41:32.539
as hard to produce significantly more hormone

00:41:32.539 --> 00:41:35.360
just to ensure enough of it remains free and

00:41:35.360 --> 00:41:37.179
active in the blood to keep the metabolism running.

00:41:37.389 --> 00:41:41.170
Precisely. A healthy thyroid just revs up, hypertrophies

00:41:41.170 --> 00:41:43.929
slightly, and handles the extra workload. But

00:41:43.929 --> 00:41:46.269
a marginal thyroid or a thyroid that's under

00:41:46.269 --> 00:41:49.670
autoimmune attack simply fails under the stress

00:41:49.670 --> 00:41:51.789
of needing to produce so much extra hormone.

00:41:52.289 --> 00:41:54.769
The primary causes of hypothyroidism listed in

00:41:54.769 --> 00:41:57.730
your sources are Hashimoto's disease, which is

00:41:57.730 --> 00:41:59.949
an autoimmune condition where antibodies destroy

00:41:59.949 --> 00:42:03.349
the thyroid gland, congenital issues, or an iodine

00:42:03.349 --> 00:42:05.909
deficiency. Let's explain the iodine piece because

00:42:05.909 --> 00:42:08.429
it helps you remember the pathology. Why does

00:42:08.429 --> 00:42:10.750
a lack of iodine in the diet cause the thyroid

00:42:10.750 --> 00:42:12.929
to fail? If you look at the molecular structure

00:42:12.929 --> 00:42:14.989
of thyroid hormone, it is literally built out

00:42:14.989 --> 00:42:18.150
of iodine atoms. T3 has three iodine atoms. T4

00:42:18.150 --> 00:42:20.769
has four. Right. If a pregnant mother does not

00:42:20.769 --> 00:42:23.869
have enough dietary iodine, her thyroid physically

00:42:23.869 --> 00:42:25.929
lacks the building blocks to manufacture the

00:42:25.929 --> 00:42:28.130
hormone, no matter how hard the brain yells at

00:42:28.130 --> 00:42:30.289
it to work. That's a great mechanistic explanation.

00:42:30.710 --> 00:42:33.469
Now let's briefly look at hyperthyroidism. an

00:42:33.469 --> 00:42:36.429
overactive thyroid. This is much rarer in pregnancies,

00:42:36.550 --> 00:42:39.130
almost entirely driven by Graves' disease. In

00:42:39.130 --> 00:42:41.570
Graves' disease, the body produces a rogue mutant

00:42:41.570 --> 00:42:44.489
antibody called thyroid stimulating immunoglobulin.

00:42:44.619 --> 00:42:48.659
or TSI. And just like HCG mimics TSH, this rogue

00:42:48.659 --> 00:42:51.960
TSI antibody also mimics TSH. It locks onto the

00:42:51.960 --> 00:42:54.300
thyroid gland and permanently turns the switch

00:42:54.300 --> 00:42:56.579
to the on -end position, forcing the thyroid

00:42:56.579 --> 00:43:00.300
to churn out massive toxic amounts of T4 hormone.

00:43:00.619 --> 00:43:02.460
So on a lab report, you will see a dangerously

00:43:02.460 --> 00:43:04.980
elevated T4 level, but interestingly, you will

00:43:04.980 --> 00:43:07.940
see a nearly undetectable TSH level. Why is the

00:43:07.940 --> 00:43:10.969
TSH near zero if the thyroid is overactive? because

00:43:10.969 --> 00:43:13.389
of the negative feedback loop. The brain senses

00:43:13.389 --> 00:43:15.590
that there is way too much T4 flooding the body,

00:43:15.670 --> 00:43:17.869
so the pituitary gland panics and completely

00:43:17.869 --> 00:43:20.469
shuts off its own production of TSH, desperately

00:43:20.469 --> 00:43:22.889
trying to tell the thyroid to stop. But the thyroid

00:43:22.889 --> 00:43:24.769
isn't listening to the brain, it's listening

00:43:24.769 --> 00:43:28.190
to the rogue TSI antibodies. That is a classic

00:43:28.190 --> 00:43:30.769
NCLEX lab interpretation question right there.

00:43:31.030 --> 00:43:34.449
High T4 plus low TSH equals hyperthyroidism.

00:43:35.050 --> 00:43:37.110
But let's step back and ask why this matters

00:43:37.110 --> 00:43:39.960
so much in the context of pregnancy. Beyond the

00:43:39.960 --> 00:43:42.679
mom feeling tired or jittery, why are we so worried?

00:43:42.900 --> 00:43:45.380
Let me be very direct here as your clinical mentor.

00:43:45.920 --> 00:43:48.920
Unmanaged thyroid issues are absolutely catastrophic

00:43:48.920 --> 00:43:51.659
for fetal development. The fetal thyroid gland

00:43:51.659 --> 00:43:54.139
does not begin functioning on its own until around

00:43:54.139 --> 00:43:56.719
10 to 12 weeks of gestation. So for the entire

00:43:56.719 --> 00:43:59.119
first trimester, the baby has no working thyroid

00:43:59.119 --> 00:44:02.000
of its own? None. Before week 12, the fetus is

00:44:02.000 --> 00:44:04.219
100 % reliant on the maternal thyroid hormone

00:44:04.219 --> 00:44:06.940
crossing the placenta to survive. And what exactly

00:44:06.940 --> 00:44:09.199
does the fetus use that maternal thyroid hormone

00:44:09.199 --> 00:44:11.659
for? Neurological development, brain growth,

00:44:11.920 --> 00:44:14.179
the architectural wiring of the fetal central

00:44:14.179 --> 00:44:17.940
nervous system is entirely dependent on T4. Severe

00:44:17.940 --> 00:44:20.340
untreated maternal hypothyroidism in the first

00:44:20.340 --> 00:44:23.440
trimester severely and irreversibly impacts the

00:44:23.440 --> 00:44:25.579
cognitive development of the fetus, leading to

00:44:25.579 --> 00:44:28.019
profound intellectual disabilities. That is terrifying.

00:44:28.199 --> 00:44:31.519
It is. It also massively increases the risk of

00:44:31.519 --> 00:44:34.679
early pregnancy loss, preeclampsia, placental

00:44:34.679 --> 00:44:37.440
abruption, where the placenta violently tears

00:44:37.440 --> 00:44:39.719
away from the uterine wall postpartum hemorrhage,

00:44:40.000 --> 00:44:43.260
and preterm labor. The mother's thyroid is literally

00:44:43.260 --> 00:44:46.239
building the baby's brain. What about the risks

00:44:46.239 --> 00:44:49.219
of hyperthyroidism? Hyperthyroidism carries its

00:44:49.219 --> 00:44:52.119
own severe risks, notably maternal heart failure.

00:44:52.329 --> 00:44:55.030
The hypermetabolic state forces the heart to

00:44:55.030 --> 00:44:58.070
beat so fast and so hard that it eventually fails.

00:44:58.630 --> 00:45:00.630
There's also the risk of thyroid storm, which

00:45:00.630 --> 00:45:03.630
is a life -threatening acute hypermetabolic crisis

00:45:03.630 --> 00:45:06.389
involving fever, extreme tachycardia, and altered

00:45:06.389 --> 00:45:09.909
mental status. For the fetus, the massive influx

00:45:09.909 --> 00:45:12.329
of maternal TSI antibodies can actually cross

00:45:12.329 --> 00:45:14.690
the placenta and cause fetal hyperthyroidism,

00:45:14.730 --> 00:45:17.250
leading to fetal tachycardia, poor growth, and

00:45:17.250 --> 00:45:19.650
fetal goiter. This is why your sources emphasize

00:45:19.650 --> 00:45:22.099
the absolute need for serial ultrasound. on growth

00:45:22.099 --> 00:45:24.739
indicators for hyperthyroid clients. OK, let's

00:45:24.739 --> 00:45:27.059
talk expected versus concerning presentations.

00:45:27.719 --> 00:45:30.039
The expected lab values provided in your source

00:45:30.039 --> 00:45:32.679
are critical to memorize for your exams. The

00:45:32.679 --> 00:45:35.980
normal reference range for TSH is 0 .35 to 4

00:45:35.980 --> 00:45:39.400
.9 MIUL. The normal reference range for T4 is

00:45:39.400 --> 00:45:43.179
0 .6 to 1 .8 MZDL. Now, the text mentions subclinical

00:45:43.179 --> 00:45:45.480
cases where the labs might be slightly off, but

00:45:45.480 --> 00:45:47.840
the patient feels fine. We are worried about

00:45:47.840 --> 00:45:50.559
overt cases. Let's do another clinical vignette.

00:45:50.920 --> 00:45:53.559
A 32 -year -old pregnant client at 28 weeks comes

00:45:53.559 --> 00:45:56.280
into the clinic. She complains of profound fatigue.

00:45:56.719 --> 00:45:59.659
She has severe constipation. She has gained 15

00:45:59.659 --> 00:46:01.840
pounds in the last month. She feels cold all

00:46:01.840 --> 00:46:04.460
the time. And she has peripheral edema swollen

00:46:04.460 --> 00:46:06.219
ankles. OK, stop right there. I have to push

00:46:06.219 --> 00:46:09.019
back as a student again. Fatigue. weight gain,

00:46:09.300 --> 00:46:12.260
constipation, swollen ankles. Isn't that literally

00:46:12.260 --> 00:46:14.179
just a normal Tuesday for a woman in her third

00:46:14.179 --> 00:46:16.760
trimester of pregnancy? How in the world is a

00:46:16.760 --> 00:46:18.760
triage nurse supposed to look at a pregnant woman

00:46:18.760 --> 00:46:21.639
who says, I'm tired, my feet are swollen, and

00:46:21.639 --> 00:46:24.059
I can't poop and think, oh yeah, she has Hashimoto's

00:46:24.059 --> 00:46:26.940
disease. You have just identified the ultimate

00:46:26.940 --> 00:46:30.599
most devious NCLEX trap for thyroid disorders

00:46:30.599 --> 00:46:33.940
in pregnancy. You are exactly right. The symptoms

00:46:33.940 --> 00:46:36.699
of overt hypothyroidism perfectly seamlessly

00:46:36.699 --> 00:46:39.659
mimic a normal, albeit uncomfortable, pregnancy.

00:46:40.260 --> 00:46:42.739
This is why it is so easily missed by providers.

00:46:43.000 --> 00:46:44.599
So how do we catch it? What's the golden ticket?

00:46:44.920 --> 00:46:47.539
The key clinical differentiator, the objective

00:46:47.539 --> 00:46:50.320
data point you must look for in an exam question

00:46:50.320 --> 00:46:52.960
to distinguish a hypothyroid crash from a normal

00:46:52.960 --> 00:46:56.599
pregnancy, is the vital signs, specifically the

00:46:56.599 --> 00:47:00.329
heart rate. Yes. Normal pregnancy causes a slight

00:47:00.329 --> 00:47:02.269
increase in maternal resting heart rate due to

00:47:02.269 --> 00:47:04.630
the massive increase in blood volume. The heart

00:47:04.630 --> 00:47:06.769
is pumping more fluid, so it beats a little faster.

00:47:07.309 --> 00:47:08.969
If you have a pregnant client presenting with

00:47:08.969 --> 00:47:11.550
fatigue, edema, weight gain, and a resting heart

00:47:11.550 --> 00:47:14.170
rate of 52 beats per minute, alarm bells should

00:47:14.170 --> 00:47:17.099
be ringing loudly. Bradycardia points directly

00:47:17.099 --> 00:47:19.300
to a systemic metabolic slowdown, which means

00:47:19.300 --> 00:47:22.000
you need to check those TSH and T4 lab values

00:47:22.000 --> 00:47:24.320
immediately. That's a phenomenal distinction

00:47:24.320 --> 00:47:26.199
to make. Look at the vital signs. What about

00:47:26.199 --> 00:47:28.380
overt hyperthyroidism? How does that present?

00:47:29.119 --> 00:47:31.719
Hyperthyroidism is the exact opposite. It's an

00:47:31.719 --> 00:47:34.340
engine redlining. The concerning signs are flushing,

00:47:34.699 --> 00:47:38.159
Perfuse sweating, even in a cool room. Severe

00:47:38.159 --> 00:47:41.380
anxiety or panic attacks. Erasing heart or severe

00:47:41.380 --> 00:47:44.539
tachycardia. Fine hand tremors. Changing bowel

00:47:44.539 --> 00:47:47.260
habits. Often frequent diarrhea because the gut

00:47:47.260 --> 00:47:50.219
motility is hyperactive. And a total inability

00:47:50.219 --> 00:47:52.820
to sleep. All right, let's move to priority nursing

00:47:52.820 --> 00:47:56.239
actions in pharmacology. If the patient is hypothyroid,

00:47:56.480 --> 00:47:58.820
we must administer a synthetic thyroid replacement

00:47:58.820 --> 00:48:01.980
hormone, primarily levothyroxine. And there is

00:48:01.980 --> 00:48:04.500
a massive patient education point here. that

00:48:04.500 --> 00:48:06.559
nursing instructors absolutely love to test.

00:48:07.159 --> 00:48:09.159
The nurse must teach the client to avoid taking

00:48:09.159 --> 00:48:11.539
their prenatal vitamins within four hours of

00:48:11.539 --> 00:48:13.780
taking their levothyroxine. Let's explain the

00:48:13.780 --> 00:48:15.480
why so you don't have to blindly memorize it.

00:48:15.480 --> 00:48:17.800
Why separate them? Because prenatal vitamins

00:48:17.800 --> 00:48:19.860
are packed with heavy minerals, specifically

00:48:19.860 --> 00:48:22.679
iron and calcium. If a patient swallows an iron

00:48:22.679 --> 00:48:25.039
pill and a levothyroxine pill at the same time,

00:48:25.380 --> 00:48:27.420
the iron and calcium physically and chemically

00:48:27.420 --> 00:48:29.900
bind to the levothyroxine molecule inside the

00:48:29.900 --> 00:48:32.440
stomach. It turns it into an insoluble complex

00:48:32.440 --> 00:48:34.699
that the intestines cannot absorb. So it just

00:48:34.699 --> 00:48:37.000
passes right through their digestive tract. Exactly.

00:48:37.099 --> 00:48:39.360
If they take them together, it's as if they didn't

00:48:39.360 --> 00:48:42.340
take their thyroid medication at all. Their T4

00:48:42.340 --> 00:48:44.739
levels will stay dangerously low, putting the

00:48:44.739 --> 00:48:47.360
fetal brain at risk. You must aggressively educate

00:48:47.360 --> 00:48:50.260
the patient. Take the liofluroxine first thing

00:48:50.260 --> 00:48:52.420
in the morning with a glass of water on a completely

00:48:52.420 --> 00:48:55.579
empty stomach, wait an hour to eat, and do not

00:48:55.579 --> 00:48:57.539
take your prenatal vitamin until lunch or dinner.

00:48:57.789 --> 00:49:00.750
What about pharmacological actions for hyperthyroidism?

00:49:00.949 --> 00:49:03.230
We administer anti -thyroid medications, but

00:49:03.230 --> 00:49:05.590
the timing is highly tested. The text gives us

00:49:05.590 --> 00:49:08.969
two specific drugs, propylthiuracil, or PTU,

00:49:09.090 --> 00:49:12.110
and methamazole. PTU is given until the 16th

00:49:12.110 --> 00:49:14.570
week of pregnancy. Methamazole is given after

00:49:14.570 --> 00:49:17.280
the 16th week. The reason for this complex medication

00:49:17.280 --> 00:49:19.840
switch is a balancing act between teratogenicity

00:49:19.840 --> 00:49:22.119
for the baby and liver toxicity for the mother.

00:49:22.739 --> 00:49:25.239
Methamazole works better overall and has fewer

00:49:25.239 --> 00:49:27.559
side effects for the mother, but it is associated

00:49:27.559 --> 00:49:30.639
with specific severe birth defects like a plage

00:49:30.639 --> 00:49:32.980
acutus where the baby is born missing skin on

00:49:32.980 --> 00:49:35.800
their scalp if given during the critical first

00:49:35.800 --> 00:49:38.079
trimester organogenesis window. So methamazole

00:49:38.079 --> 00:49:41.139
is dangerous early on. Right. PTU on the other

00:49:41.139 --> 00:49:43.739
hand does not cross the placenta as easily and

00:49:43.739 --> 00:49:46.760
is much safer for the fetus early on. However,

00:49:47.039 --> 00:49:49.400
PTU carries a very high risk of causing sudden

00:49:49.400 --> 00:49:52.480
severe maternal liver toxicity. So we make a

00:49:52.480 --> 00:49:55.059
clinical compromise. We use PTU for the first

00:49:55.059 --> 00:49:57.559
16 weeks when the baby is forming and is most

00:49:57.559 --> 00:50:00.199
vulnerable to defects. Once the organs are fully

00:50:00.199 --> 00:50:02.820
formed, we immediately switch the mother to methamazole

00:50:02.820 --> 00:50:04.800
for the remainder of the pregnancy to protect

00:50:04.800 --> 00:50:07.400
her liver from the PTU. The goal is always to

00:50:07.400 --> 00:50:10.179
use the absolute lowest possible dose of either

00:50:10.179 --> 00:50:13.159
medication to maintain the maternal T4 in the

00:50:13.159 --> 00:50:15.440
high normal range. ensuring we don't accidentally

00:50:15.440 --> 00:50:18.099
push the mother into hypothyroidism and starve

00:50:18.099 --> 00:50:20.179
the fetal brain. Let's hit the memory ankles

00:50:20.179 --> 00:50:22.480
for this section. To remember the medication

00:50:22.480 --> 00:50:25.639
timing for hypothyroidism, use the acronym PTU.

00:50:25.820 --> 00:50:29.280
Pre -16 treatment, usually. PTU, pre -16 treatment,

00:50:29.420 --> 00:50:31.780
usually. And for the levothyroxine separation,

00:50:31.920 --> 00:50:34.099
remember this rhyme. Four hours for four. Wait

00:50:34.099 --> 00:50:36.699
four hours between levothyroxine, which is T4,

00:50:37.019 --> 00:50:39.500
and your prenatal vitamins. And fundamentally,

00:50:39.679 --> 00:50:41.739
if you get confused on an exam, just remember

00:50:41.739 --> 00:50:44.539
what the metabolic engines do. Hypo equals a

00:50:44.539 --> 00:50:47.000
slow metabolism bradycardia, cold intolerance,

00:50:47.320 --> 00:50:50.119
constipation, weight gain. Hyper equals a fast

00:50:50.119 --> 00:50:53.039
metabolism tachycardia, hand tremors, diarrhea,

00:50:53.360 --> 00:50:56.260
weight loss. Okay, if you only remember five

00:50:56.260 --> 00:50:58.340
things about thyroid disorders from this deep

00:50:58.340 --> 00:51:01.679
dive, lock these in your brain. Number one. Maternal

00:51:01.679 --> 00:51:04.699
hypothyroidism severely threatens fetal neurological

00:51:04.699 --> 00:51:06.860
brain development in the first trimester because

00:51:06.860 --> 00:51:10.000
the baby relies entirely on the mom's T4. Number

00:51:10.000 --> 00:51:12.579
two, the physical symptoms of overt hypothyroidism

00:51:12.579 --> 00:51:15.019
seamlessly mimic normal pregnancy, but the key

00:51:15.019 --> 00:51:17.539
objective clinical differentiator is bradycardia.

00:51:17.739 --> 00:51:20.239
Number three, you absolutely must educate the

00:51:20.239 --> 00:51:22.679
patient to separate levosyroxine and prenatal

00:51:22.679 --> 00:51:25.380
vitamins by at least four hours to prevent physical

00:51:25.380 --> 00:51:27.650
absorption blocking by iron and calcium. Number

00:51:27.650 --> 00:51:30.309
four, for hyperthyroidism, use PTU until week

00:51:30.309 --> 00:51:32.969
16 to protect the baby, then switch to methamazole

00:51:32.969 --> 00:51:35.110
to protect the mom's liver. And number five,

00:51:35.449 --> 00:51:39.210
normal TSH during pregnancy is 0 .35 to 4 .9

00:51:39.210 --> 00:51:42.570
MIUL. Excellent summary. We have covered a massive,

00:51:42.590 --> 00:51:44.650
massive amount of highly testable ground today.

00:51:44.929 --> 00:51:47.150
We really have. We stepped back from the dry

00:51:47.150 --> 00:51:49.869
textbook, we sifted through your sources, and

00:51:49.869 --> 00:51:52.090
we pulled out the absolute most critical high

00:51:52.090 --> 00:51:55.199
yield facts for your exams. We talked about how

00:51:55.199 --> 00:51:57.480
the placenta acts as a rogue endocrine organ,

00:51:57.920 --> 00:52:00.360
bumping out human placental lactogen to drive

00:52:00.360 --> 00:52:02.880
insulin resistance and gestational diabetes,

00:52:03.420 --> 00:52:05.559
ultimately putting the newborn at massive risk

00:52:05.559 --> 00:52:08.119
for severe postnatal hypoglycemia once the cord

00:52:08.119 --> 00:52:11.789
is cut. We explored how surging HCG levels, especially

00:52:11.789 --> 00:52:14.250
from molar or multiple pregnancies, drive the

00:52:14.250 --> 00:52:17.349
severe dehydration, hypokalemia, and psychosocial

00:52:17.349 --> 00:52:21.429
trauma of hyperemesis gravidarum and how to objectively

00:52:21.429 --> 00:52:24.969
quantify that danger using the PUQE score to

00:52:24.969 --> 00:52:27.050
advocate for your patient. And finally, we discussed

00:52:27.050 --> 00:52:29.449
how thyroid hormones act as the master metabolic

00:52:29.449 --> 00:52:32.050
engine, dictating fetal neurological development

00:52:32.050 --> 00:52:34.050
and the critical importance of medication timing

00:52:34.050 --> 00:52:35.949
and spacing to ensure that hormone gets absorbed.

00:52:36.119 --> 00:52:39.059
You have absolutely mastered the 80 -20 breakdown

00:52:39.059 --> 00:52:41.760
of endocrine disorders in pregnancy. As you head

00:52:41.760 --> 00:52:44.000
into your clinical rotations and eventually sit

00:52:44.000 --> 00:52:46.880
for your NCLEX, I want to offer a final piece

00:52:46.880 --> 00:52:49.900
of strategy as your exam coach. Nursing exams

00:52:49.900 --> 00:52:51.820
are not trying to trick you for the sake of being

00:52:51.820 --> 00:52:53.860
mean, they're trying to ensure you are safe.

00:52:54.320 --> 00:52:57.239
When you read a complex, paragraph -long question,

00:52:57.599 --> 00:53:00.059
always cut through the noise and prioritize maternal

00:53:00.059 --> 00:53:03.199
airway, circulation, and fetal distress. Ask

00:53:03.199 --> 00:53:05.619
yourself, what will kill this patient the fastest?

00:53:05.420 --> 00:53:08.659
That's the golden rule. Right. And always, always

00:53:08.659 --> 00:53:11.599
look for the abnormal finding hiding inside the

00:53:11.599 --> 00:53:14.059
expected complaints of pregnancy. Look for the

00:53:14.059 --> 00:53:16.300
bradycardia hiding behind the normal fatigue.

00:53:16.679 --> 00:53:19.199
Look for the extreme dehydration and weight loss

00:53:19.199 --> 00:53:21.679
hiding behind the morning sickness. That is phenomenal

00:53:21.679 --> 00:53:23.900
advice. Trust your clinical judgment. You know,

00:53:23.980 --> 00:53:25.900
before we wrap up looking at all these live values

00:53:25.900 --> 00:53:28.000
and specifically the mechanisms of gestational

00:53:28.000 --> 00:53:30.179
diabetes, it got me thinking about something

00:53:30.179 --> 00:53:32.340
bigger. Something beyond just the nine months

00:53:32.340 --> 00:53:34.800
of pregnancy. It's a fascinating rabbit hole.

00:53:35.500 --> 00:53:37.659
We know from the text that gestational diabetes

00:53:37.659 --> 00:53:41.440
gives a mother a 60 % recurrence risk and a massively

00:53:41.440 --> 00:53:43.840
elevated risk of developing permanent type 2

00:53:43.840 --> 00:53:46.699
diabetes within a decade. But I want you to think

00:53:46.699 --> 00:53:49.039
about the fetal environment. Right. The baby

00:53:49.039 --> 00:53:51.099
inside that high sugar environment. Exactly.

00:53:51.539 --> 00:53:54.139
If that newborn was bathed in a high glucose,

00:53:54.300 --> 00:53:57.699
high insulin environment for nine critical formative

00:53:57.699 --> 00:54:00.519
months of cellular development, how does that

00:54:00.519 --> 00:54:03.059
epigenetic programming alter their own metabolic

00:54:03.059 --> 00:54:05.420
baseline. How does it affect the architecture

00:54:05.420 --> 00:54:08.219
of their pancreas 30, 40, or 50 years down the

00:54:08.219 --> 00:54:11.320
line? Wow, that's heavy. It is. When you are

00:54:11.320 --> 00:54:13.340
a nurse managing a pregnant client's blood sugar

00:54:13.340 --> 00:54:16.559
today, teaching her the 424 diet, you aren't

00:54:16.559 --> 00:54:18.719
just nursing two patients. You might very well

00:54:18.719 --> 00:54:21.599
be witnessing and positively influencing the

00:54:21.599 --> 00:54:23.579
metabolic blueprint for the next generation.

00:54:24.099 --> 00:54:26.679
Your nursing interventions today literally echo

00:54:26.679 --> 00:54:29.239
into the future. What a powerful, profound way

00:54:29.239 --> 00:54:32.579
to look at the impact of OB nursing. You are

00:54:32.579 --> 00:54:34.440
literally shaping the future of human health.

00:54:34.880 --> 00:54:36.460
To the aspiring nurse listening to this, you've

00:54:36.460 --> 00:54:37.880
got this, you have the knowledge, you understand

00:54:37.880 --> 00:54:39.860
the why behind the pathophysiology, you have

00:54:39.860 --> 00:54:42.260
the clinical reasoning, and you have this exam

00:54:42.260 --> 00:54:44.659
in the bag. Thanks for diving deep with us.