WEBVTT 00:00:07.880 --> 00:00:10.759 You're in the bay. Once you get over to the bed, 00:00:10.919 --> 00:00:13.560 we'll give you the story. Everything's going 00:00:13.560 --> 00:00:17.339 to happen super fast. Welcome to the emergency 00:00:17.339 --> 00:00:45.090 room. Welcome to the deep dive. So if you are 00:00:45.090 --> 00:00:47.789 a nursing student prepping for your maternal 00:00:47.789 --> 00:00:52.229 newborn exams right now, you are probably staring 00:00:52.229 --> 00:00:54.750 down just a mountain of textbooks. Oh, absolutely. 00:00:54.850 --> 00:00:57.270 It's overwhelming. Right. Like a massive list 00:00:57.270 --> 00:00:59.890 of medications, complicated clinical pathways. 00:01:00.289 --> 00:01:02.689 It really feels like you have to memorize every 00:01:02.689 --> 00:01:04.969 single possible scenario that could ever happen 00:01:04.969 --> 00:01:07.849 to a pregnant person. And honestly, it is incredibly 00:01:07.849 --> 00:01:10.430 overwhelming if you try to absorb it all equally. 00:01:10.670 --> 00:01:13.329 you know, treating every fact like it's equally 00:01:13.329 --> 00:01:15.930 important. Which you just can't do. So our mission 00:01:15.930 --> 00:01:19.689 today is to step into the role of your clinical 00:01:19.689 --> 00:01:22.510 mentors and exam coaches. Exactly. We are going 00:01:22.510 --> 00:01:25.170 to aggressively apply the Pareto Principle to 00:01:25.170 --> 00:01:27.489 your study material on labor and birth management. 00:01:27.590 --> 00:01:29.829 Yeah, the 80 -20 rule. Right. Swifting through 00:01:29.829 --> 00:01:31.909 the noise, you know, and focusing strictly on 00:01:31.909 --> 00:01:34.569 the 20 % of the concepts, patterns, and really 00:01:34.569 --> 00:01:36.489 high yield facts will actually get you 80 % of 00:01:36.489 --> 00:01:39.629 your exam points. I love that. No fluff, no endless 00:01:39.629 --> 00:01:42.670 reading. lists, we are hunting for the exact 00:01:42.670 --> 00:01:46.650 NCLEX -style traps, the priority interventions, 00:01:46.709 --> 00:01:48.609 and the safety alerts that nursing instructors 00:01:48.609 --> 00:01:51.269 absolutely love to test. They do love their traps, 00:01:51.629 --> 00:01:54.310 but to navigate those effectively, I mean, we 00:01:54.310 --> 00:01:56.730 need a lens to look through. What is the fundamental 00:01:56.730 --> 00:01:59.170 non -negotiable rule that a student needs to 00:01:59.170 --> 00:02:01.769 anchor their clinical judgment to? Well, the 00:02:01.769 --> 00:02:04.590 ultimate clinical priority is dual safety. You 00:02:04.590 --> 00:02:07.329 are always at every single second managing two 00:02:07.329 --> 00:02:09.509 patients simultaneously. Right. The mother and 00:02:09.509 --> 00:02:11.490 the baby. Exactly. You're constantly balancing 00:02:11.490 --> 00:02:14.289 the maternal physical status with fetal oxygenation. 00:02:14.409 --> 00:02:15.990 And if you anchor your critical thinking right 00:02:15.990 --> 00:02:20.379 there and ask yourself, how does this... specific 00:02:20.379 --> 00:02:23.599 action affect the mother? And how does it affect 00:02:23.599 --> 00:02:26.400 the baby's oxygen supply? Well, the exam questions 00:02:26.400 --> 00:02:28.340 really start to answer themselves. OK, let's 00:02:28.340 --> 00:02:30.699 unpack this by walking through a sort of chronological 00:02:30.699 --> 00:02:33.199 timeline of a high stakes clinical shift. Let's 00:02:33.199 --> 00:02:35.620 visualize our patient. Sounds good. Because before 00:02:35.620 --> 00:02:37.840 we can even think about, you know, strapping 00:02:37.840 --> 00:02:41.099 on a fetal monitor, we have to properly assess 00:02:41.099 --> 00:02:43.800 the mother coming through the doors. Triage basically 00:02:43.800 --> 00:02:46.439 dictates everything that follows. It does. And 00:02:46.439 --> 00:02:50.939 often, that very first triage assessment actually 00:02:50.939 --> 00:02:53.719 happens over the phone. Oh, right. Yeah. Exam 00:02:53.719 --> 00:02:56.159 writers love to test your ability to differentiate 00:02:56.159 --> 00:02:59.539 between just expected, you know, promontory signs 00:02:59.539 --> 00:03:01.900 of labor and a situation where you need to tell 00:03:01.900 --> 00:03:03.639 the patient to get to the hospital immediately. 00:03:03.879 --> 00:03:06.139 So on the phone, you're assessing things like 00:03:06.139 --> 00:03:08.039 their estimated date of birth, their gravita 00:03:08.039 --> 00:03:11.919 and parity history, the frequency of fetal movement. 00:03:11.939 --> 00:03:13.639 And the characteristics of their contractions. 00:03:14.039 --> 00:03:17.430 Exactly. You also ask about bloody show and whether 00:03:17.430 --> 00:03:19.669 their membranes have ruptured. But I really want 00:03:19.669 --> 00:03:22.830 to pause on that last one. Why is membrane rupture 00:03:22.830 --> 00:03:25.629 such an immediate red alert trigger? That's a 00:03:25.629 --> 00:03:28.030 great question. Is it just the practical issue 00:03:28.030 --> 00:03:30.750 of not wanting the patient to deliver in their 00:03:30.750 --> 00:03:32.870 car on the highway? Well, no. It's actually rooted 00:03:32.870 --> 00:03:36.969 in physiology and infection control. The amniotic 00:03:36.969 --> 00:03:40.110 sac is a completely sterile barrier. I mean, 00:03:40.110 --> 00:03:41.969 it totally protects the fetus from the outside 00:03:41.969 --> 00:03:44.930 world. OK. So the second those membranes rupture, 00:03:45.289 --> 00:03:49.360 that barrier is just gone. Vaginal flora can 00:03:49.360 --> 00:03:52.520 now ascend directly into the uterus, which immediately 00:03:52.520 --> 00:03:55.419 starts a ticking clock for coriomidionitis. A 00:03:55.419 --> 00:03:59.360 severe infection. Exactly. And there's also the 00:03:59.360 --> 00:04:01.759 immediate mechanical risk of a cord prolapse. 00:04:02.000 --> 00:04:04.180 Oh, wow, right. Yeah, that the baby's head isn't 00:04:04.180 --> 00:04:06.080 fully engaged in the pelvis when all that fluid 00:04:06.080 --> 00:04:08.520 gushes out. The umbilical cord can literally 00:04:08.520 --> 00:04:11.460 wash out past the head. Which means it gets compressed. 00:04:11.479 --> 00:04:13.300 Right, compressing the baby's actual lifeline. 00:04:13.460 --> 00:04:15.840 OK, so eruptured memory means immediate evaluation. 00:04:16.019 --> 00:04:18.259 Now let's say she arrives at the unit. we transition 00:04:18.259 --> 00:04:20.319 to the in -person admission assessment. All right, 00:04:20.399 --> 00:04:22.379 getting maternal health history, vital signs, 00:04:22.759 --> 00:04:25.019 checking fundal height. And doing a vaginal exam 00:04:25.019 --> 00:04:28.560 to check cervical dilation, effacement, and fetal 00:04:28.560 --> 00:04:30.800 descent. But I always see this highlighted in 00:04:30.800 --> 00:04:33.620 the sources. The very first thing done upon entry 00:04:33.620 --> 00:04:37.100 into the labor and birth area is a 10 to 20 minute 00:04:37.100 --> 00:04:39.480 continuous fetal heart rate assessment. Yes. 00:04:39.920 --> 00:04:43.699 That initial 20 -minute continuous monitor is 00:04:43.699 --> 00:04:46.139 your absolute baseline. Which makes sense. You 00:04:46.139 --> 00:04:48.360 have to establish how the fetus is tolerating 00:04:48.360 --> 00:04:51.100 its current environment before the intense, you 00:04:51.100 --> 00:04:54.480 know, prolonged stress of active labor really 00:04:54.480 --> 00:04:56.720 kicks into high gear. I always think of that 00:04:56.720 --> 00:04:58.959 initial continuous monitor as being kind of like 00:04:58.959 --> 00:05:01.420 a mandatory credit check before a bank gives 00:05:01.420 --> 00:05:03.459 out a massive loan. Oh, that's a brilliant way 00:05:03.459 --> 00:05:05.480 to put it. You need to know exactly what the 00:05:05.480 --> 00:05:08.060 baby's oxygen reserves are before you put them 00:05:08.060 --> 00:05:10.120 under the massive physical stress of uterine 00:05:10.120 --> 00:05:12.560 contractions. I mean, you can't safely proceed 00:05:12.560 --> 00:05:15.339 without knowing their starting tolerance. The 00:05:15.339 --> 00:05:18.079 credit check analogy works perfectly for visualizing 00:05:18.079 --> 00:05:20.779 the baseline. But remember, and this is key, 00:05:21.240 --> 00:05:23.600 the baseline alone doesn't give you a pass to 00:05:23.600 --> 00:05:25.680 just ignore the patient for the next hour. Right, 00:05:25.899 --> 00:05:28.019 of course not. It dictates the frequency of your 00:05:28.019 --> 00:05:30.420 ongoing monitoring. This is a major priority 00:05:30.420 --> 00:05:33.709 action and a huge exam trap. you absolutely cannot 00:05:33.709 --> 00:05:36.910 confuse the rules for intermittent versus continuous 00:05:36.910 --> 00:05:38.970 monitoring. Oh, right. What are the strict rules 00:05:38.970 --> 00:05:41.850 there? Well, if you have a low -risk patient 00:05:41.850 --> 00:05:45.410 in active labor, you use intermittent auscultation 00:05:45.410 --> 00:05:48.829 every 30 minutes. But if they are high risk in 00:05:48.829 --> 00:05:51.410 active labor that interval drops to every 15 00:05:51.410 --> 00:05:54.029 minutes every 15 minutes Got it. And obviously 00:05:54.029 --> 00:05:57.230 if the mother or baby status changes we adapt 00:05:57.230 --> 00:06:00.310 exactly But what happens if the external monitors 00:06:00.310 --> 00:06:03.029 just aren't giving us a clear picture say the 00:06:03.029 --> 00:06:04.930 maternal habitus makes it difficult to pick up 00:06:04.930 --> 00:06:08.769 the heartbeat or The baby is just moving around 00:06:08.769 --> 00:06:11.189 erratically. It happens all the time. So if we 00:06:11.189 --> 00:06:14.819 need a closer look via continuous internal monitoring. 00:06:14.920 --> 00:06:17.800 Can we just, you know, switch to that? You absolutely 00:06:17.800 --> 00:06:19.860 cannot just switch to it. This is highly testable. 00:06:20.319 --> 00:06:23.240 To place an internal fetal scalp electrode, you 00:06:23.240 --> 00:06:25.720 must meet a strict safety checklist. Okay, what's 00:06:25.720 --> 00:06:28.279 on the checklist? First, the membranes must be 00:06:28.279 --> 00:06:31.540 ruptured. Second, the cervix must be dilated 00:06:31.540 --> 00:06:34.879 at least two centimeters. Third, the presenting 00:06:34.879 --> 00:06:37.180 fetal part must be low enough to allow access. 00:06:37.199 --> 00:06:40.000 And fourth? And fourth, a skilled practitioner 00:06:40.000 --> 00:06:42.209 must be available. I want to make sure I understand 00:06:42.209 --> 00:06:45.410 the mechanics of that restriction. Why this strict 00:06:45.410 --> 00:06:48.189 two centimeter dilation rule? Like, what's the 00:06:48.189 --> 00:06:50.930 reason? It all comes down to physical access 00:06:50.930 --> 00:06:53.550 and maternal safety. I mean, an internal monitor 00:06:53.550 --> 00:06:56.910 is a small spiral electrode that is literally 00:06:56.910 --> 00:06:59.970 gently screwed into the superficial skin of the 00:06:59.970 --> 00:07:02.680 fetal scalp. Oh, wow. Yeah. So if the cervix 00:07:02.680 --> 00:07:05.439 is only one centimeter dilated, you physically 00:07:05.439 --> 00:07:07.720 cannot get the guide tube and the electrodes 00:07:07.720 --> 00:07:10.040 safely through that cervical opening without 00:07:10.040 --> 00:07:12.360 risking severe laceration to the maternal tissue. 00:07:12.579 --> 00:07:14.800 That makes total sense. So if a test question 00:07:14.800 --> 00:07:17.560 shows a patient with intact membranes or a closed 00:07:17.560 --> 00:07:20.439 cervix, internal monitoring is instantly the 00:07:20.439 --> 00:07:22.839 wrong answer. Here's where it gets really interesting, 00:07:23.000 --> 00:07:25.000 though. Now that we have the monitors on, what 00:07:25.000 --> 00:07:27.680 are we actually looking at? The tracings. Right. 00:07:27.879 --> 00:07:29.879 Interpreting fetal heart rate tracings is kind 00:07:29.879 --> 00:07:33.300 of the holy grail of OB exams. It's the one area 00:07:33.300 --> 00:07:35.879 where nursing students tend to panic the most 00:07:35.879 --> 00:07:38.860 because, honestly, it looks like a foreign language. 00:07:38.959 --> 00:07:40.759 It definitely looks intimidating at first glance. 00:07:41.279 --> 00:07:43.540 But we can break it down into highly testable, 00:07:43.779 --> 00:07:46.379 manageable chunks. Please do. The single most 00:07:46.379 --> 00:07:48.899 important indicator of fetal well -being. write 00:07:48.899 --> 00:07:52.199 this down, is baseline variability. Variability? 00:07:52.420 --> 00:07:55.459 Yes. Variability represents the constant push 00:07:55.459 --> 00:07:58.199 and pull of the baby's sympathetic and parasympathetic 00:07:58.199 --> 00:08:01.240 nervous systems. The sympathetic nervous system 00:08:01.240 --> 00:08:04.500 increases the heart rate, while the parasympathetic 00:08:04.500 --> 00:08:07.319 slows it down. Okay. When both are healthy and 00:08:07.319 --> 00:08:10.319 well oxygenated, they constantly tug back and 00:08:10.319 --> 00:08:12.939 forth, creating tiny fluctuations in the baseline. 00:08:13.459 --> 00:08:15.079 And the sources break this into four categories, 00:08:15.160 --> 00:08:19.279 right? Absent, which is a flat, totally undetectable 00:08:19.279 --> 00:08:22.079 line. Right. Minimal, which is less than 5 beats 00:08:22.079 --> 00:08:24.680 per minute of fluctuation. Moderate, which is 00:08:24.680 --> 00:08:27.860 6 to 25 beats per minute. And marked, which is 00:08:27.860 --> 00:08:30.480 anything over 25 beats per minute. Exactly. And 00:08:30.480 --> 00:08:33.000 the big flashing neon sign for students is that 00:08:33.000 --> 00:08:37.090 moderate variability. that 625 range is normal. 00:08:37.330 --> 00:08:40.529 So moderate is what we want to see. 100%. When 00:08:40.529 --> 00:08:42.470 you see moderate variability on a tracing, you 00:08:42.470 --> 00:08:44.549 know the baby's nervous system is intact and 00:08:44.549 --> 00:08:47.629 they are well oxygenated. Now, let's filter the 00:08:47.629 --> 00:08:49.889 three overarching categories of fetal heart rate 00:08:49.889 --> 00:08:52.750 patterns. Category one is your normal happy baby. 00:08:52.830 --> 00:08:55.190 The ideal scenario. Right. The baseline rate 00:08:55.190 --> 00:08:58.950 is between 110 and 160. You have moderate variability, 00:08:59.610 --> 00:09:01.870 accelerations or early decelerations might be 00:09:01.870 --> 00:09:04.190 present, and that is perfectly fine. And what's 00:09:04.190 --> 00:09:07.009 the absolute rule for category one? The absolute 00:09:07.009 --> 00:09:10.129 key rule is there are no late or variable decelerations. 00:09:10.789 --> 00:09:13.429 If you see this pattern, your clinical judgment 00:09:13.429 --> 00:09:16.529 is that it's predictive of normal fetal acid 00:09:16.529 --> 00:09:19.500 -base status. No intervention is required. But 00:09:19.500 --> 00:09:21.600 then we have category two. This feels like a 00:09:21.600 --> 00:09:24.200 huge exam trap because it is just so broad. It's 00:09:24.200 --> 00:09:26.539 literally labeled as the indeterminate group. 00:09:26.659 --> 00:09:29.460 It's a very gray area. Yeah, you might see tachycardia 00:09:29.460 --> 00:09:31.960 or bradycardia that still has variability. You 00:09:31.960 --> 00:09:34.759 might see minimal or marked variability or even 00:09:34.759 --> 00:09:36.960 recurrent late or variable decelerations that 00:09:36.960 --> 00:09:39.220 are accompanied by moderate baseline variability. 00:09:39.559 --> 00:09:41.779 Exactly. Wait, if it's indeterminate, doesn't 00:09:41.779 --> 00:09:44.700 that just mean we don't know? Why even have a 00:09:44.700 --> 00:09:46.960 category that just says maybe on a medical exam? 00:09:47.159 --> 00:09:49.559 Because that captures the clinical reality of 00:09:49.559 --> 00:09:52.480 watchful waiting in obstetrics. I mean, not everything 00:09:52.480 --> 00:09:54.799 is perfectly healthy or actively dying. That's 00:09:54.799 --> 00:09:58.100 fair. Category 2 means the pattern isn't definitively 00:09:58.100 --> 00:10:01.000 predictive of normal acid -base status, but it 00:10:01.000 --> 00:10:03.899 also isn't predicting severe hypoxia yet. It 00:10:03.899 --> 00:10:06.620 requires continued surveillance and reevaluation. 00:10:06.899 --> 00:10:09.299 So how do you tell when it crosses the line? 00:10:09.549 --> 00:10:11.690 The key differentiator, the thing that separates 00:10:11.690 --> 00:10:14.629 a concerning category 2 from a terrifying category 00:10:14.629 --> 00:10:17.769 3, is almost always the variability. OK, so define 00:10:17.769 --> 00:10:20.330 that terrifying category 3 for us. Category 3 00:10:20.330 --> 00:10:23.049 tracings are purely abnormal. They are predictive 00:10:23.049 --> 00:10:25.990 of abnormal fetal acid base status, meaning the 00:10:25.990 --> 00:10:28.710 baby is actively hypoxic. So priority action. 00:10:28.990 --> 00:10:31.809 You must report it immediately. Category 3 includes 00:10:31.809 --> 00:10:35.850 bradycardia, a baseline under 110 beats per minute. 00:10:36.000 --> 00:10:38.600 but specifically bradycardia combined with absent 00:10:38.600 --> 00:10:40.740 variability. Absent variability being the key. 00:10:41.039 --> 00:10:43.320 Exactly. It includes recurrent late or variable 00:10:43.320 --> 00:10:45.179 decelerations, again, with absent variability. 00:10:45.879 --> 00:10:48.000 Or it might be a sinusoidal pattern, which is 00:10:48.000 --> 00:10:50.980 this smooth undulating wave that indicates severe 00:10:50.980 --> 00:10:54.779 fetal anemia. OK, so just to clarify, bradycardia 00:10:54.779 --> 00:10:57.360 with variability. That is category two. Watch 00:10:57.360 --> 00:10:59.759 it closely. Bradycardia with absent variability. 00:11:00.120 --> 00:11:03.950 Category three. Sound the alarm. Wow. Okay. And 00:11:03.950 --> 00:11:06.250 if we hit that category three, we aren't just 00:11:06.250 --> 00:11:08.090 calling the provider and waiting with our fingers 00:11:08.090 --> 00:11:12.070 crossed, right? We have to actually act. Immediately. 00:11:12.509 --> 00:11:14.629 The sources outline the priority interventions 00:11:14.629 --> 00:11:17.070 for category three patterns. This is the act 00:11:17.070 --> 00:11:19.710 now sequence. These are top tier exam materials. 00:11:20.190 --> 00:11:23.110 First, notify the healthcare provider. Second, 00:11:23.470 --> 00:11:27.710 and this is a massive NCLEX Traptis Continuoxytocin 00:11:27.710 --> 00:11:30.389 or any other uteratonic agent immediately. Stop 00:11:30.389 --> 00:11:32.470 the P .O .S .en. Never let P .O .S .en continue 00:11:32.470 --> 00:11:34.789 to run if the baby is in distress. Wait, let's 00:11:34.789 --> 00:11:37.070 look at why oxytocin specifically. I know it 00:11:37.070 --> 00:11:39.409 causes contractions, but why is that the absolute 00:11:39.409 --> 00:11:41.690 immediate enemy during fetal distress? Because 00:11:41.690 --> 00:11:44.559 of how the placenta functions. During a strong 00:11:44.559 --> 00:11:46.879 uterine contraction, the blood vessels supplying 00:11:46.879 --> 00:11:49.340 the placenta are physically squeezed shut by 00:11:49.340 --> 00:11:51.360 the uterine muscle. Oh, so it cuts off the supply. 00:11:51.879 --> 00:11:54.759 Right. Blood flow, and therefore oxygen transfer 00:11:54.759 --> 00:11:58.240 to the baby, momentarily stops. A healthy baby 00:11:58.240 --> 00:12:00.539 has the reserves to handle those brief pauses. 00:12:00.720 --> 00:12:04.259 Like holding their breath. Exactly. But a hypoxic 00:12:04.259 --> 00:12:07.990 baby does not. If you leave the oxytocin running, 00:12:08.509 --> 00:12:11.549 you are forcing a suffocating baby to endure 00:12:11.549 --> 00:12:14.370 more contractions, completely cutting off what 00:12:14.370 --> 00:12:17.029 little oxygen they have left. Stop the stress. 00:12:17.330 --> 00:12:20.429 That is step one. Next, turn the client. Move 00:12:20.429 --> 00:12:22.889 them to their left or right lateral knee chest 00:12:22.889 --> 00:12:25.190 or hands and knees position. Why do we move them? 00:12:25.399 --> 00:12:27.639 because this physically shifts the weight of 00:12:27.639 --> 00:12:30.100 the heavy uterus off the maternal inferior vena 00:12:30.100 --> 00:12:32.759 cava, which immediately relieves cord compression 00:12:32.759 --> 00:12:35.080 and increases placental perfusion. Okay, that 00:12:35.080 --> 00:12:37.779 makes sense. Then administer oxygen via a non 00:12:37.779 --> 00:12:40.159 -rebreather face mask to flood the maternal bloodstream 00:12:40.159 --> 00:12:42.860 with oxygen, which then crosses over to the fetus. 00:12:42.899 --> 00:12:45.220 And then the IV fluids. Right. After that, you 00:12:45.220 --> 00:12:47.419 increase the IV fluid rate to expand the maternal 00:12:47.419 --> 00:12:49.860 intravascular volume. That corrects any maternal 00:12:49.860 --> 00:12:51.700 hypotension that might be decreasing blood flow 00:12:51.700 --> 00:12:54.419 to the uterus. I love finding patterns to help 00:12:54.419 --> 00:12:57.039 remember these sequences. If you get a category 00:12:57.039 --> 00:12:59.879 three question, you should think stop the stress, 00:13:00.659 --> 00:13:03.139 shift the weight, flood the engine. Oh, that's 00:13:03.139 --> 00:13:05.279 really good. Stop the stress by turning off the 00:13:05.279 --> 00:13:08.259 oxytocin to halt contractions. Shift the weight 00:13:08.259 --> 00:13:11.139 by repositioning her to relieve the cord and 00:13:11.139 --> 00:13:13.879 the vena cava and flood the engine by pushing. 00:13:14.090 --> 00:13:17.090 IV fluids and throwing on that non -rebreather 00:13:17.090 --> 00:13:20.309 oxygen mass to maximize perfusion. Stop the stress, 00:13:20.610 --> 00:13:22.730 shift the weight, flood the engine. I mean that 00:13:22.730 --> 00:13:25.309 is a phenomenal memory anchor. It captures the 00:13:25.309 --> 00:13:28.169 physiological mechanism behind every single priority 00:13:28.169 --> 00:13:30.269 nursing action. It really simplifies it. You 00:13:30.269 --> 00:13:32.830 also modify pushing efforts if she's in the second 00:13:32.830 --> 00:13:35.730 stage and prepare for an expeditious surgical 00:13:35.730 --> 00:13:38.129 birth if the pattern isn't corrected in 30 minutes. 00:13:38.570 --> 00:13:40.809 Let's use causality to transition to our next 00:13:40.809 --> 00:13:42.889 major topic. We just spent all this time optimizing 00:13:42.889 --> 00:13:45.269 the baby's oxygen with fluids and repositioning. 00:13:46.250 --> 00:13:49.070 What happens when the mother's intense pain kicks 00:13:49.070 --> 00:13:51.389 in? That's a huge factor. Doesn't her physical 00:13:51.389 --> 00:13:54.090 reaction to unmanaged pain negatively affect 00:13:54.090 --> 00:13:58.210 the baby? It absolutely does. Severe, unmanaged 00:13:58.210 --> 00:14:01.830 pain causes maternal anxiety and hyperventilation. 00:14:02.110 --> 00:14:04.330 Hyperventilation blows off way too much carbon 00:14:04.330 --> 00:14:06.909 dioxide, which leads to maternal respiratory 00:14:06.909 --> 00:14:09.990 alkalosis. And alkalosis is bad because... Alkalosis 00:14:09.990 --> 00:14:12.330 causes the blood vessels to constrict, including 00:14:12.330 --> 00:14:14.490 the uterine blood vessels, which directly decreases 00:14:14.490 --> 00:14:17.750 oxygen transfer to... of the fetus. Pain management 00:14:17.750 --> 00:14:19.830 and labor isn't just a courtesy. It is heavily 00:14:19.830 --> 00:14:23.250 tied to fetal safety. I'm looking at the non 00:14:23.250 --> 00:14:25.570 -pharmacological options listed in the sources. 00:14:25.950 --> 00:14:28.710 Continuous labor support, hydrotherapy, position 00:14:28.710 --> 00:14:32.269 changes, pattern -paced breathing, and effleurage, 00:14:32.429 --> 00:14:34.350 which is that light stroking of the abdomen. 00:14:34.470 --> 00:14:38.070 Right. Do those actually work against the sheer 00:14:38.070 --> 00:14:40.710 force of labor, or are they just distractions? 00:14:40.889 --> 00:14:42.409 Oh, they definitely work. They work through the 00:14:42.409 --> 00:14:44.409 gate control theory of pain. How does that work? 00:14:44.600 --> 00:14:47.120 The idea is that pain signals travel up the spinal 00:14:47.120 --> 00:14:50.080 cord to the brain, but the gate can only process 00:14:50.080 --> 00:14:53.580 so much information at once. By applying a competing 00:14:53.580 --> 00:14:55.799 physical sensation, like the warmth of hydrotherapy 00:14:55.799 --> 00:14:58.879 or the tactile friction of a flourish, you essentially 00:14:58.879 --> 00:15:01.139 crowd out the pain signals. You close the gate. 00:15:01.460 --> 00:15:04.299 Exactly. Closing the gate to the perception of 00:15:04.299 --> 00:15:07.679 pain. That makes total sense. Now, for the pharmacologic 00:15:07.679 --> 00:15:09.539 options, we're usually talking about systemic 00:15:09.539 --> 00:15:12.799 analgesia administered through an IV. The sources 00:15:12.799 --> 00:15:15.919 list a massive array of drugs. They do. Opioids 00:15:15.919 --> 00:15:20.059 like butorfenol, nalbufen, maparadine, and fentanyl. 00:15:20.240 --> 00:15:23.039 They also mention ateractics like hydroxazine 00:15:23.039 --> 00:15:25.720 and promethazine, as well as benzodiazepines. 00:15:26.240 --> 00:15:28.379 How is a student supposed to memorize all these? 00:15:28.620 --> 00:15:31.139 It's a lot. Is there a bigger physiological rule 00:15:31.139 --> 00:15:33.860 at play here? Like, why use an ateractic alongside 00:15:33.860 --> 00:15:38.000 an opioid? Rather than memorizing the list, understand 00:15:38.000 --> 00:15:41.019 the mechanism. Opioids provide systemic pain 00:15:41.019 --> 00:15:43.899 relief, but a major adverse effect is severe 00:15:43.899 --> 00:15:47.059 nausea and vomiting. Adoractics like promethazine 00:15:47.059 --> 00:15:49.779 are primarily antiemetics. They control the nausea. 00:15:49.919 --> 00:15:52.320 but they also potentiate the effects of the opioid. 00:15:52.500 --> 00:15:55.179 Potentiate meaning they make it stronger. Exactly. 00:15:55.720 --> 00:15:58.259 This means we can administer a smaller overall 00:15:58.259 --> 00:16:00.860 dose of the narcotic to achieve the same level 00:16:00.860 --> 00:16:03.460 of pain relief. Why is that so important? Using 00:16:03.460 --> 00:16:06.240 less narcotic is crucial because opioids cross 00:16:06.240 --> 00:16:09.419 the placenta and can severely suppress the newborn's 00:16:09.419 --> 00:16:12.809 respiratory drive at birth. Okay. Now, the ultimate 00:16:12.809 --> 00:16:15.289 pain management tool seems to be the epidural 00:16:15.289 --> 00:16:18.350 block, but I notice instructors really love to 00:16:18.350 --> 00:16:21.549 test the timing of when it is administered. Timing 00:16:21.549 --> 00:16:24.049 is everything with epidurals. If the pain is 00:16:24.049 --> 00:16:26.370 incredibly severe early on, why not just give 00:16:26.370 --> 00:16:28.799 the epidural immediately? Because an epidural 00:16:28.799 --> 00:16:31.539 is a regional norexial block that completely 00:16:31.539 --> 00:16:34.139 numbs the lower half of the body. If administered 00:16:34.139 --> 00:16:36.879 too early, typically before the cervix is dilated 00:16:36.879 --> 00:16:39.600 to at least five centimeters, it can drastically 00:16:39.600 --> 00:16:41.779 slow down or entirely stall the progression of 00:16:41.779 --> 00:16:44.659 labor. Oh, I see. The woman is an active participant 00:16:44.659 --> 00:16:47.179 in labor, and losing that sensation and muscle 00:16:47.179 --> 00:16:50.100 control too soon can impede the body's natural 00:16:50.100 --> 00:16:52.940 physiological progress. What about general anesthesia? 00:16:53.200 --> 00:16:55.639 The sources note it involves an IV injection 00:16:55.639 --> 00:16:58.639 of thiopental to produce unconsciousness, then 00:16:58.639 --> 00:17:01.720 a muscle relaxant, intubation, and then nitrous 00:17:01.720 --> 00:17:04.539 oxide and oxygen. Yes. If it's the absolute fastest 00:17:04.539 --> 00:17:07.039 option available, why is it strictly reserved 00:17:07.039 --> 00:17:09.539 for extreme emergencies? It comes back to the 00:17:09.539 --> 00:17:13.490 systemic effects again. General anesthesia. crosses 00:17:13.490 --> 00:17:15.950 the placenta incredibly rapidly. When you push 00:17:15.950 --> 00:17:18.190 those IV medications to put the mother under 00:17:18.190 --> 00:17:20.849 general, you are also literally putting the newborn 00:17:20.849 --> 00:17:23.710 to sleep. That sounds dangerous. It is. This 00:17:23.710 --> 00:17:26.450 places the baby at a severe risk for respiratory 00:17:26.450 --> 00:17:29.509 depression, lethargy, and poor muscle tone upon 00:17:29.509 --> 00:17:32.029 delivery. We only accept the risk of general 00:17:32.029 --> 00:17:35.450 anesthesia when the mother or baby's life is 00:17:35.450 --> 00:17:38.049 in immediate danger, like a severe placental 00:17:38.049 --> 00:17:41.029 abruption. And we literally just do not have 00:17:41.029 --> 00:17:43.829 the 10 minutes required to safely place a regional 00:17:43.829 --> 00:17:46.329 spinal block. So the epidural is working, the 00:17:46.329 --> 00:17:48.670 baby's tracing is category one, and the mother 00:17:48.670 --> 00:17:51.549 hits 10 centimeters of dilation. We are in the 00:17:51.549 --> 00:17:53.650 second stage of labor. Time to push. The second 00:17:53.650 --> 00:17:55.990 stage, right. But I'm reading here that we shouldn't 00:17:55.990 --> 00:17:57.829 necessarily tell the patient to start bearing 00:17:57.829 --> 00:18:00.849 down immediately. Why? If they are fully dilated, 00:18:00.950 --> 00:18:02.650 shouldn't we just get the baby out? It comes 00:18:02.650 --> 00:18:04.910 down to the mechanism of involuntary bearing 00:18:04.910 --> 00:18:08.440 down. Directed pushing before the fetus has descended 00:18:08.440 --> 00:18:11.380 deeply enough into the pelvis is just exhausting 00:18:11.380 --> 00:18:13.779 for the mother and highly ineffective. Worse, 00:18:14.279 --> 00:18:16.960 if she pushes prematurely against a cervix that 00:18:16.960 --> 00:18:19.940 isn't fully retracted, the friction causes the 00:18:19.940 --> 00:18:22.799 cervical tissue to swell and thicken, which physically 00:18:22.799 --> 00:18:25.839 blocks the baby's exit. You encourage the mother 00:18:25.839 --> 00:18:28.420 to wait until she feels a strong involuntary 00:18:28.420 --> 00:18:31.740 urge to push. Meaning the baby is ready. Exactly. 00:18:31.819 --> 00:18:33.859 Meaning the fetal head is naturally applying 00:18:33.859 --> 00:18:36.500 pressure to the pelvic floor. So the pushing 00:18:36.500 --> 00:18:39.660 is successful and the baby is delivered. We pivot 00:18:39.660 --> 00:18:42.759 immediately to newborn care. We suction the airway 00:18:42.759 --> 00:18:45.500 and then dry them off. Crucial steps. Why is 00:18:45.500 --> 00:18:47.619 drying them off such a massive nursing priority? 00:18:47.759 --> 00:18:49.819 Is it just because they are, you know, slippery? 00:18:50.039 --> 00:18:52.279 No, it's about temperature regulation. Evaporation 00:18:52.279 --> 00:18:54.380 is the number one cause of heat loss in a newborn. 00:18:55.359 --> 00:18:58.339 When they emerge covered in amniotic fluid, the 00:18:58.339 --> 00:19:00.740 surrounding room air rapidly cools their body 00:19:00.740 --> 00:19:03.119 temperature. And a cold baby is a problem. A 00:19:03.119 --> 00:19:06.210 huge problem. A cold baby uses up all their oxygen 00:19:06.210 --> 00:19:08.529 and glucose trying to stay warm, which leads 00:19:08.529 --> 00:19:11.549 directly to respiratory distress and hypoglycemia. 00:19:11.950 --> 00:19:13.930 Vigorous drying immediately removes that fluid, 00:19:14.390 --> 00:19:16.910 stops evaporative heat loss, and provides vital 00:19:16.910 --> 00:19:19.670 tactile stimulation to encourage crying and lung 00:19:19.670 --> 00:19:22.690 expansion. Okay, now we enter stage three, the 00:19:22.690 --> 00:19:26.430 delivery of the placenta. This feels like a massive 00:19:26.430 --> 00:19:30.730 exam trap area. What is the physiological mechanism 00:19:30.730 --> 00:19:33.970 we are watching for here? You are primarily assessing 00:19:33.970 --> 00:19:36.829 for signs of placental separation. After the 00:19:36.829 --> 00:19:39.809 baby is born, the uterus drastically shrinks. 00:19:40.200 --> 00:19:43.420 The placenta, however, doesn't shrink. Oh, interesting. 00:19:43.559 --> 00:19:46.400 This size mismatch causes the placenta to basically 00:19:46.400 --> 00:19:49.480 buckle and shear off the uterine wall. You will 00:19:49.480 --> 00:19:51.900 see a sudden gush of dark blood. The umbilical 00:19:51.900 --> 00:19:53.859 cord will appear to lengthen out of the vagina, 00:19:54.220 --> 00:19:56.980 and the uterus changes from a discoid shape to 00:19:56.980 --> 00:19:59.799 a firm globular shape. When you see those signs, 00:20:00.220 --> 00:20:02.160 you instruct the mother to push to expel it. 00:20:02.299 --> 00:20:04.839 And once it's out, we administer a bolus of oxytocin. 00:20:04.859 --> 00:20:06.720 We'll get back to the sheer irony of that in 00:20:06.720 --> 00:20:09.259 a minute. Let's move to stage four, the first 00:20:09.259 --> 00:20:11.660 few hours postpartum. This is routinely taught 00:20:11.660 --> 00:20:14.019 as the danger zone. It is the ultimate danger 00:20:14.019 --> 00:20:16.579 zone for postpartum hemorrhage. Your priority 00:20:16.579 --> 00:20:18.539 assessments in the fourth stage are taking frequent 00:20:18.539 --> 00:20:21.079 vital signs, checking the firmness of the fundus, 00:20:21.279 --> 00:20:23.779 assessing the perineal area, monitoring lochia, 00:20:23.980 --> 00:20:27.160 and this is a critical NCLEX favorite, assessing 00:20:27.160 --> 00:20:29.519 the mother's bladder status. Why is the bladder 00:20:29.519 --> 00:20:32.119 such a massive priority when we are worried about 00:20:32.119 --> 00:20:34.160 uterine bleeding? I mean, they seem unrelated. 00:20:34.440 --> 00:20:37.069 Visualize the pelvic anatomy. The uterus sits 00:20:37.069 --> 00:20:40.789 directly behind the bladder. After birth, the 00:20:40.789 --> 00:20:44.210 uterus needs to clamp down to contract fiercely, 00:20:44.569 --> 00:20:46.950 to act like a living tourniquet. To seal off 00:20:46.950 --> 00:20:49.329 the blood vessels. Yes, sealing off the massive 00:20:49.329 --> 00:20:51.750 open blood vessels where the placenta was previously 00:20:51.750 --> 00:20:54.569 attached. If the bladder is full of urine, it 00:20:54.569 --> 00:20:57.970 acts like an inflated balloon. Oh, wow. It physically 00:20:57.970 --> 00:21:00.990 pushes the uterus up and deviates it to the right 00:21:00.990 --> 00:21:03.599 side of the abdomen. A displaced uterus cannot 00:21:03.599 --> 00:21:06.359 contract effectively. It becomes boggy and relaxed, 00:21:06.680 --> 00:21:08.920 which means those massive blood vessels stay 00:21:08.920 --> 00:21:11.519 wide open, leading directly to a life -threatening 00:21:11.519 --> 00:21:14.099 hemorrhage. So, assessing the bladder and encouraging 00:21:14.099 --> 00:21:16.539 voiding isn't just a comfort measure. It is a 00:21:16.539 --> 00:21:19.339 mechanical, life -saving hemorrhage prevention 00:21:19.339 --> 00:21:22.460 strategy. That visual makes total sense. It really 00:21:22.460 --> 00:21:24.230 helps to see it mechanical, yeah. All right. 00:21:24.250 --> 00:21:26.430 We have covered a massive amount of clinical 00:21:26.430 --> 00:21:28.869 ground today. If you are listening to this right 00:21:28.869 --> 00:21:31.670 before walking into your OBA exam and you only 00:21:31.670 --> 00:21:33.869 have space in your brain to remember five things, 00:21:34.109 --> 00:21:36.250 here is your ultimate survival guide. All right. 00:21:36.369 --> 00:21:38.869 Number one, always establish your baseline first. 00:21:39.490 --> 00:21:42.250 You cannot safely administer labor inducing drugs 00:21:42.250 --> 00:21:45.490 without a 10 to 20 minute continuous fetal heart 00:21:45.490 --> 00:21:48.990 rate assessment on admission. Number two, variability 00:21:48.990 --> 00:21:51.940 is king. Remember the push and pull of the autonomic 00:21:51.940 --> 00:21:54.900 nervous system. Moderate variability, that's 00:21:54.900 --> 00:21:58.059 6 to 25 beats per minute of fluctuation, means 00:21:58.059 --> 00:22:00.960 you have a happy, well -oxygenated baby. Number 00:22:00.960 --> 00:22:05.380 3. Category 3 means SOP and EVEC X. If you see 00:22:05.380 --> 00:22:07.779 absent variability with bradycardia or recurrent 00:22:07.779 --> 00:22:10.559 late decelerations, use our anchor. Stop the 00:22:10.559 --> 00:22:12.819 stress, shift the weight, flood the engine. Right. 00:22:13.119 --> 00:22:15.099 Discontinue oxytocin, reposition the mother, 00:22:15.339 --> 00:22:18.750 apply oxygen, and push IV fluids. Number 4. epidural 00:22:18.750 --> 00:22:21.029 timing matters. To prevent stalling the natural 00:22:21.029 --> 00:22:22.950 progression of labor, they are usually started 00:22:22.950 --> 00:22:25.009 when the cervix is dilated greater than five 00:22:25.009 --> 00:22:28.500 centimeters. End number five. Fourth stage safety 00:22:28.500 --> 00:22:31.539 is entirely about preventing hemorrhage. Always 00:22:31.539 --> 00:22:34.019 check the firmness of the fundus and constantly 00:22:34.019 --> 00:22:36.819 assess the bladder. A full bladder mechanically 00:22:36.819 --> 00:22:39.539 displaces the uterus, prevents it from clamping 00:22:39.539 --> 00:22:42.859 down, and causes massive bleeding. If you master 00:22:42.859 --> 00:22:45.559 those five concepts and constantly apply the 00:22:45.559 --> 00:22:48.160 lens of dual safety, you are well on your way 00:22:48.160 --> 00:22:51.200 to thinking like a prioritizing safe OB nurse. 00:22:51.579 --> 00:22:54.259 So what does this all mean? It means the overwhelming 00:22:54.259 --> 00:22:56.500 world of obstetrics isn't just a random list 00:22:56.500 --> 00:22:59.220 of facts to memorize. It is a highly interconnected 00:22:59.220 --> 00:23:02.160 web of physiological cause and effect. You now 00:23:02.160 --> 00:23:04.099 have the tools and the memory anchors to look 00:23:04.099 --> 00:23:06.259 past the distractors and find the safest path 00:23:06.259 --> 00:23:09.220 forward. I want to leave you with one final clinical 00:23:09.220 --> 00:23:11.880 judgment puzzle to mull over on your own. We 00:23:11.880 --> 00:23:14.480 discussed at length how you absolutely must discontinue 00:23:14.480 --> 00:23:17.319 oxytocin during a category three tracing. Right. 00:23:17.579 --> 00:23:19.259 You turn it off because the contractions are 00:23:19.259 --> 00:23:21.960 cutting off the baby's oxygen supply. But think 00:23:21.960 --> 00:23:24.420 about the third stage of labor, literally minutes 00:23:24.420 --> 00:23:26.720 later, right after the baby and placenta are 00:23:26.720 --> 00:23:29.579 born. We suddenly administer a massive bolus 00:23:29.579 --> 00:23:33.559 of oxytocin. Why? the complete reversal. Consider 00:23:33.559 --> 00:23:36.559 how the nurse's goal for the uterine muscle completely 00:23:36.559 --> 00:23:39.380 flips the exact second the baby is safely breathing 00:23:39.380 --> 00:23:41.960 room air. That is a brilliant mechanism to leave 00:23:41.960 --> 00:23:44.000 off on. We'll let you connect those final dots. 00:23:44.480 --> 00:23:46.640 Best of luck on your exams, trust your preparation, 00:23:46.759 --> 00:23:48.539 and we will catch you on the next deep dive.