WEBVTT

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Welcome to the bed. We'll go ahead and give you

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the story. This is all going to happen super

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fast. Welcome to the emergency room. Welcome

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back to the deep dive. Today, we are wrestling

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a giant of critical care, thermal and cold injury

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management, and we're going to forge an immediate.

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High Yield Clinical Guide. Exactly. This isn't

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just about reading the rule book. It's about

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identifying those small, timely interventions.

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that really make the difference between a successful

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outcome and, well, a cascading failure in those

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first few critical hours. Yeah, and today we're

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really focusing on that Pareto principle, you

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know, the 20 % of knowledge that's going to give

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you 80 % of your success. It's tailor -made for

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those of you in emergency medicine and nursing.

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Right. Burn injury is, it's unique because it's

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not just a wound. It's a systemic inflammatory

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insult. A systemic insult. Our mission today

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is to dissect that acute management minutiae.

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We're really targeting three major areas of error,

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failing to secure the airway early, mismanaging

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the fluid resuscitation, and missing those secondary

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complications. Things like compartment syndrome.

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Compartment syndrome and the dreaded muscle breakdown,

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which we call rhabdomyolysis. That distinction

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you made, a systemic inflammatory insult versus

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just a wound, that is absolutely the key to understanding

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why burn care is so complex, isn't it? It is.

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When we talk about rhabdomyolysis, for instance,

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we're talking about damaged skeletal muscle breaking

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down, releasing all these harmful proteins and

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electrolytes into the bloodstream, which then,

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of course, threatens the kidneys. It's a direct

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threat. It just illustrates how one local injury

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can become this massive multi -organ systemic

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threat. Exactly. The injury sets off this catastrophic

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but predictable domino effect. The extent and

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the depth of the burn directly correlate to the

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amount of inflammatory mediators that get released.

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And this cascade causes a massive capillary leak,

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which is why we see this profound generalized

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edema. And here's where timing is everything.

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This process might be, you know, explosive and

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immediate in a high -intensity flame burn, or

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it could be dangerously delayed and insidious

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in a deep chemical injury. Okay, so let's unpack

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this by starting at minute zero. The patient

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arrives. We have to stop the burning process,

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that energy transfer immediately. This is where

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those basic steps can prevent progression from

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say a second degree to a third degree injury.

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The absolute first priority is prevention of

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further injury. If the patient arrives still

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smoldering or covered in hot material, you have

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to completely remove all of the patient's clothing.

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All of it. All of it. But a major caveat exists

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here. You do not peel off adherent clothing.

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Okay, so if the clothing is stuck, why? is trying

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to remove it a mistake. What's the hidden injury

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risk there? Well, if the fabric is adhered, and

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this is usually synthetic material that's literally

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melted onto the skin trying to peel it off, we'll

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just rip off the underlying viable dermis. Oh,

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I see. And you're basically converting a partial

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thickness burn into a full thickness injury.

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You're dramatically increasing pain, infection

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risk, and scarring. You just cut around the adherent

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parts and you leave them for specialized wound

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care later. The non -adherent clothes, though,

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they have to go immediately. And the rationale

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for that immediate removal is really the type

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of fabric we all wear today. It's a double -edged

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sword, these synthetic fabrics. They ignite easily,

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they burn hot, and crucially, they melt into

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this persistent high -temperature residue that

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continues to transfer heat to the tissue long

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after the flame is out. So it's like a time release

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injury. It is exactly a time release injury.

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By removing them, you are effectively stopping

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that process. OK, so once the insult is stopped,

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We immediately have to pivot to temperature control,

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which I know is a cornerstone of initial stabilization.

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Why does the burn patient become hypothermic

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so rapidly, and what are the essential nursing

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interventions to combat that? The loss of skin

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integrity? It instantly compromises the body's

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ability to thermoregulate. Right. So you couple

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that with the rapid exposure you need for a thorough

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assessment and the constant use of room temperature

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fluids, hypothermia is nearly guaranteed in major

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brands. And this isn't just uncomfortable. Hypothermia

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below 36 degrees Celsius worsens quailopathy.

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It increases mortality and it impairs healing.

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So the minute the clothes are off, what are we

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doing? Immediately cover the patient with warm,

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clean, dry linens. A thermal blanket if you have

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one available. The environment itself, the room

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must be warm, and all intravenous fluids you

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use for resuscitation must be actively warm.

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Actively warm, not just room temp. No, absolutely

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not. We need to be judicious in exposing the

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patient. So you only uncover the necessary area

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for the immediate assessment and then you recover

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it immediately. This active temperature management

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starts in the ambulance or the emergency department

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and it continues throughout the entire resuscitation.

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Let's talk about chemical burns for a second

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because they require a completely different triage

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pathway. If it's a dry powdered chemical, what

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is the sequence? The sequence is, uh, it's counterintuitive

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for many. If a dry powder like certain industrial

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lime products cause the burn, you must brush

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the powder off first. Brush first. Brush first.

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The mistake is immediately rushing to irrigation,

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which can activate the chemical, turning a surface

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exposure into this deep penetrating liquid that

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just accelerates tissue destruction. And once

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that dry powder is removed, or if it was a liquid

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chemical to begin with, then the irrigation process

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starts. What are the specifics for that decontamination?

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Decontamination is an exhaustive effort We use

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copious amounts of warm saline or a warm shower.

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And the duration here is critical. At least 20

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to 30 minutes of continuous rinsing. That's a

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long time. It's a very long time. And if the

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chemical is an alkali, the irrigation needs to

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be sustained even longer. We're talking often

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45 minutes to an hour because they penetrate

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so deeply. You mentioned that acids and alkalis

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injure tissue fundamentally differently. If I'm

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a clinician stabilizing this patient, why does

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understanding the difference between coagulation

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and liquefaction necrosis influence my management?

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Well, it dictates the urgency and the depth of

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the injury you're facing. Acids cause something

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called coagulation necrosis. Think of it like

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frying an egg. The tissue protein coagulates,

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creating a tough, often yellow -white, escher.

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OK. This coagulated layer acts as a kind of temporary

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barrier, which slows the acid's penetration into

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deeper tissue. Right. So it kind of walls itself

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off, in a way. In a way, yes. Alkalis, on the

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other hand, cause liquefaction necrosis. They

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dissolve proteins and fats through saponification,

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essentially turning the tissue into this soapy

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liquid mass. That sounds significantly worse.

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It is because there is no self -limiting barrier.

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The alkali just penetrates continuously and deeply,

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inflicting damage over a wider area, often reaching

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down to the bone or other vital structures. This

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is why alkali burns are considered universally

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more destructive and why they require such prolonged

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irrigation to dilute and remove the agent completely.

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Shifting back to the body's systemic response,

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that inflammatory cascade. We highlighted that

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massive edema is coming, and it's often delayed.

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This isn't just about swelling, is it? It's about

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preventing harm caused by the very equipment

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we're putting on the patient. What are the specific

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nursing alerts for preventing that iatrogenic

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harm as the edema progresses? This is one of

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the most critical high -yield nursing details,

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I think. You know, you place the lines in tubes

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when the patient was stable, but as that capillary

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leak progresses, which can take hours, that same

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equipment becomes a source of injury. It becomes

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a tourniquet. It becomes a tourniquet. You must

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vigilantly monitor all your intravenous lines,

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endotracheal, and nasogastric tubes. The ties

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securing these tubes, often just cotton tape

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or some commercial restraint, they need to be

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checked hourly to ensure they are not becoming

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circumferential tourniquets, which can cause

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pressure necrosis. What about simple things,

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like an ID band? Absolutely crucial. An identification

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band that you put on snugly in the first hour

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can cause a severe skin and nerve compression

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injury by hour six. They must be loose, ideally

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taped to clothing, or affixed non -circumferentially,

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maybe on a bed rail or a monitor cable, if the

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swelling risk is really extreme. So this is a

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continuous process. Edema takes time, typically

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six to 12 hours, to fully manifest. If you wait

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until the patient is visibly swollen, you've

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already missed the window for prevention. That

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transforms the action. of securing a two from

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a one -time task to a continuous assessment priority.

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It's checking the tie, not just the two position.

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Exactly. Okay, let's move on. Airway management

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is the pinnacle of immediate critical care and

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burns. It is. Obstruction is a two -fold threat.

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You've got the direct injury from smoke or heat

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inhalation, and then you've got massive edema

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compressing the airway from the outside. The

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crucial point for listeners is that signs of

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impending obstruction are subtle at first, and

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waiting for that overt crisis, like a complete

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inability to ventilate, means you've waited far

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too long. Based on specific risk factors, what

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are the absolute high -risk clinical factors

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that should trigger an immediate call to intubation

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readiness? We're looking for a constellation

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of factors. A burn size or depth exceeding 40

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% to 50 % total body surface area, or TBSA massive

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burns produce massive edema. Makes sense. Any

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burn to the head, the face, or inside the mouth

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suggests high heat exposure to the upper airway.

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Also, always consider associated trauma and,

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of course, a confirmed inhalation injury. pediatric

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patient is fundamentally at higher risk, right?

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Regardless of the burn size. Precisely. Because

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of their smaller diameter airways and the high

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compliance of their tracheal rings, children

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can progress from just mild upper airway swelling

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to complete obstruction much, much faster than

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adults. A child with a moderate facial burn needs

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vigilance that, frankly, borders on paranoia.

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So if those risk factors are present, we consult

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the Advanced Burn Life Support, the ABLS indications

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for early intubation. This list essentially forces

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clinicians to intervene based on anticipation,

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not just the current clinical status. Let's break

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down those key indicators that just scream, secure

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the airway now. These are non -negotiable guidelines.

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First, any sign of obstruction, hoarseness, accessory

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muscle use, or difficulty breathing. But let's

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clarify the late sign. OK. Stridor. Stridor,

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that high -pitched, harsh sound on inspiration,

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means the airway is already critically narrowed

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and it demands immediate intubation. Waiting

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another 15 minutes is risking a completely impossible

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airway. What about physical findings on the head

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and neck? Extensive and deep facial or mouth

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burns are a clear indication. as is significant

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edema or just the visible risk for edema progression.

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If the patient has difficulty swallowing their

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own secretions, swelling is already impeding

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their laryngeal function. Right. We also must

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secure the airway if there are circumferential

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full thickness neck burns. Why? Because as that

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massive edema develops, that leathery inelastic

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burn tissue on the neck acts like a vice. It

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just strangles the airway from the outside. And

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what about level of consciousness or just the

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logistical problem of transferring a patient?

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Well, if the patient has a decreased level of

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consciousness or impaired airway protective reflexes,

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maybe due to associated trauma or CO poisoning,

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they need immediate intubation just to prevent

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aspiration. And logistically, if you have a large

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burn patient who needs transport and you don't

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have personnel qualified to intubate en route,

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you must secure the airway before they leave

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your facility. That makes a lot of sense. And

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finally, a carboxyhemoglobin, or HBCO, level

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greater than 10 % following a fire, especially

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in an enclosed space, strongly indicates the

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need for airway protection due to deep inhalation

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damage. So that emphasizes that if transport

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time is prolonged, or if you anticipate significant

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fluid requirements, you intubate. Once they're

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intubated, What's the mechanical challenge that

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swelling presents to the tube itself? Swelling

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makes endotracheal tube or ETT management very

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difficult. When you place it, you must use an

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adequately sized ETT, preferably an 8mm internal

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diameter or at least a 7 .5mm ID in adults. And

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why is that so important? It's twofold. Swelling

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may compress the soft tissues around the tube,

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making a small tube even smaller. And second,

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smaller tubes make subsequent necessary procedures

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like bronchoscopy to clear out necrotic material,

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extremely difficult, or even impossible. Let's

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talk about the invisible killer, carbon monoxide

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poisoning, which has to be assumed in any enclosed

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space burn. The underlying biochemistry here

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is terrifying. It is. The primary danger comes

00:13:09.740 --> 00:13:13.019
from CO having an affinity for hemoglobin that

00:13:13.019 --> 00:13:16.679
is a staggering 240 times greater than oxygen's.

00:13:16.679 --> 00:13:19.720
Wow. So CO just displaces oxygen, effectively

00:13:19.720 --> 00:13:22.759
suffocating the blood. But it gets worse. The

00:13:22.759 --> 00:13:24.779
remaining oxygen that does bind to hemoglobin

00:13:24.779 --> 00:13:28.259
is then held too tightly. CO shifts the oxyhemoglobin

00:13:28.259 --> 00:13:30.700
dissociation curve to the left, which prevents

00:13:30.700 --> 00:13:33.360
the release of oxygen to the tissues. The patient

00:13:33.360 --> 00:13:35.919
is suffering from profound cellular hypoxia.

00:13:36.090 --> 00:13:37.929
And what are the clinical correlations? What

00:13:37.929 --> 00:13:40.169
are we looking for in the field? We often classify

00:13:40.169 --> 00:13:43.090
symptoms by the level of HBCO saturation. So

00:13:43.090 --> 00:13:46.429
below 20%, often asymptomatic, maybe a mild headache.

00:13:47.070 --> 00:13:49.309
20 % to 30%, you're looking at a clear headache,

00:13:49.669 --> 00:13:53.470
nausea, mild confusion. OK. 30 % to 40%, significant

00:13:53.470 --> 00:13:56.970
confusion, maybe dizziness. 40 % to 60 %? Coma

00:13:56.970 --> 00:14:00.409
is likely, and above 60 % is typically rapidly

00:14:00.409 --> 00:14:03.210
fatal. And that classic cherry red skin. It's

00:14:03.210 --> 00:14:05.389
a myth for clinical practice. It only occurs

00:14:05.389 --> 00:14:07.470
in moribund patients because high concentrations

00:14:07.470 --> 00:14:10.409
of deoxyhemoglobin are absent. It is a completely

00:14:10.409 --> 00:14:12.649
unreliable and rare sign. Don't look for it.

00:14:12.889 --> 00:14:15.789
So if the history suggests exposure, what is

00:14:15.789 --> 00:14:18.330
the fastest, most effective management strategy?

00:14:18.519 --> 00:14:21.820
The management is 100 % oxygen delivered via

00:14:21.820 --> 00:14:24.899
a non -rebreathing mask. This treatment leverages

00:14:24.899 --> 00:14:27.279
the principle of mass action. Breathing room

00:14:27.279 --> 00:14:30.860
air, which is 21 % oxygen, gives carbon monoxide

00:14:30.860 --> 00:14:34.500
a half -life of about four hours. If you increase

00:14:34.500 --> 00:14:37.159
the environmental oxygen concentration to 100%,

00:14:37.159 --> 00:14:40.720
you rapidly displace the CO, reducing that half

00:14:40.720 --> 00:14:43.080
-life dramatically to about 40 minutes. That's

00:14:43.080 --> 00:14:45.139
a huge difference. It's a massive difference.

00:14:45.519 --> 00:14:47.840
Empiric treatment with high -flow oxygen for

00:14:47.850 --> 00:14:50.769
Four to six hours is a reasonable and essential

00:14:50.769 --> 00:14:53.250
intervention if a closed space fire occurred,

00:14:53.750 --> 00:14:55.789
even if you're still waiting on blood gas results.

00:14:56.210 --> 00:14:58.370
And here is the pitfall that can kill a patient

00:14:58.370 --> 00:15:00.870
being monitored by even the most vigilant nurse

00:15:00.870 --> 00:15:03.779
or clinician, the pulse oximeter reading. This

00:15:03.779 --> 00:15:06.200
is a mistake we see far too often. Standard pulse

00:15:06.200 --> 00:15:08.740
oximetry, it operates by measuring light absorption

00:15:08.740 --> 00:15:11.259
at two wavelengths, and it distinguishes between

00:15:11.259 --> 00:15:14.580
oxygenated and deoxygenated hemoglobin. The problem

00:15:14.580 --> 00:15:17.620
is it cannot reliably distinguish between oxyhemoglobin

00:15:17.620 --> 00:15:20.419
and carboxyhemoglobin. So it looks the same to

00:15:20.419 --> 00:15:22.139
the machine. It looks the same. A patient could

00:15:22.139 --> 00:15:24.759
have 40 % of their hemoglobin saturated with

00:15:24.759 --> 00:15:28.019
CO, be severely hypoxic, and the pulse oximeter

00:15:28.019 --> 00:15:31.299
will still happily read 98 to 100 % saturation.

00:15:31.679 --> 00:15:34.480
So if the pulse oximeter is basically useless

00:15:34.480 --> 00:15:38.230
here, how do we confirm CO poisoning? You must

00:15:38.230 --> 00:15:42.149
measure baseline HBCO using a co -oxymetry device,

00:15:42.350 --> 00:15:45.049
which analyzes multiple wavelengths, or you can

00:15:45.049 --> 00:15:47.450
do it via an arterial blood gas machine that's

00:15:47.450 --> 00:15:51.090
capable of measuring specific CO levels. Clinically,

00:15:51.190 --> 00:15:53.429
a strong warning sign is often a discrepancy

00:15:53.429 --> 00:15:56.230
between the partial pressure of oxygen in arterial

00:15:56.230 --> 00:15:59.690
blood, the PaO2, which might be normal, and that

00:15:59.690 --> 00:16:01.889
high pulse oximeter reading. That's the tip -off.

00:16:02.049 --> 00:16:04.009
While we're covering toxic inhalation, let's

00:16:04.009 --> 00:16:07.590
briefly touch on cyanide toxicity. less common,

00:16:07.629 --> 00:16:09.830
but equally devastating. We put structure fires.

00:16:10.509 --> 00:16:12.889
Cyanide is produced when materials like plastics

00:16:12.889 --> 00:16:15.309
and wool burn in confined spaces. The clinical

00:16:15.309 --> 00:16:18.129
clue is often subtle. It's a persistent, profound,

00:16:18.570 --> 00:16:21.169
unexplained metabolic acidosis. If your patient

00:16:21.169 --> 00:16:23.509
is getting adequate resuscitation and ventilation,

00:16:24.129 --> 00:16:26.710
but their pH and their bicarbonate levels remain

00:16:26.710 --> 00:16:29.710
alarmingly low without an obvious cause, you

00:16:29.710 --> 00:16:32.309
have to suspect cyanide and consult poison control

00:16:32.309 --> 00:16:35.429
immediately for the specific antidotes. and finally

00:16:35.429 --> 00:16:38.110
the mechanical damage caused by the smoke inhalation

00:16:38.110 --> 00:16:41.649
injury itself. What does all that particle and

00:16:41.649 --> 00:16:44.490
fume damage actually do to the lower airways?

00:16:44.649 --> 00:16:47.590
It's a dual mechanism of injury. First, the heat

00:16:47.590 --> 00:16:50.029
and the toxic fumes damage the mucosal cells

00:16:50.029 --> 00:16:52.830
below the vocal cords, which triggers an explosive

00:16:52.830 --> 00:16:55.730
local inflammatory response. Right. This not

00:16:55.730 --> 00:16:57.870
only increases the patient's overall systemic

00:16:57.870 --> 00:16:59.950
inflammation, meaning they're going to require

00:16:59.950 --> 00:17:02.769
significantly more fluid for resuscitation, but

00:17:02.769 --> 00:17:05.589
it also causes the damaged necrotic cells to

00:17:05.589 --> 00:17:09.089
slap off. And those slew cells, they cause obstruction.

00:17:09.069 --> 00:17:11.869
Exactly. They accumulate, they form casts and

00:17:11.869 --> 00:17:14.210
plugs that physically obstruct the bronchioles,

00:17:14.549 --> 00:17:16.849
impairing the patient's ability to clear secretions,

00:17:17.190 --> 00:17:19.869
and significantly increasing the risk of subsequent

00:17:19.869 --> 00:17:22.210
pneumonia and acute respiratory distress syndrome,

00:17:22.549 --> 00:17:25.049
or ARDS. And that's a huge driver of mortality.

00:17:25.369 --> 00:17:28.190
This injury is so severe that it is known to

00:17:28.190 --> 00:17:30.390
double the patient's overall mortality compared

00:17:30.390 --> 00:17:33.589
to a burn injury of the same size without inhalation.

00:17:33.710 --> 00:17:35.730
So we need definitive criteria for diagnosis,

00:17:35.789 --> 00:17:38.650
which often involves a scope, right? Diagnosis

00:17:38.650 --> 00:17:40.970
is established by requiring both an exposure

00:17:40.970 --> 00:17:44.049
to a combustible agent and visual signs of exposure

00:17:44.049 --> 00:17:47.210
soot, inflammation, necrotic tissue in the lower

00:17:47.210 --> 00:17:50.589
airway, as seen on bronchoscopy. Management is

00:17:50.589 --> 00:17:53.089
largely supportive, but if a high probability

00:17:53.089 --> 00:17:56.190
of inhalation injury exists and the burn is significant,

00:17:56.630 --> 00:17:59.309
we use the cutoffs of greater than 20 % TBSA

00:17:59.309 --> 00:18:01.769
in an adult or greater than 10 % in a child or

00:18:01.769 --> 00:18:04.900
elderly. Patient early intubation and aggressive

00:18:04.900 --> 00:18:08.059
pulmonary hygiene are mandatory. Okay. Airways

00:18:08.059 --> 00:18:10.740
secured, toxic gases are managed. Now we address

00:18:10.740 --> 00:18:13.380
circulation, or more accurately, the management

00:18:13.380 --> 00:18:15.980
of burn shock. We aren't replacing blood. We

00:18:15.980 --> 00:18:18.160
are replacing these massive fluid losses from

00:18:18.160 --> 00:18:20.980
capillary leak. This is where the math and the

00:18:20.980 --> 00:18:23.269
timing of that math is paramount. The goal is

00:18:23.269 --> 00:18:26.269
very specific. We have to maintain end organ

00:18:26.269 --> 00:18:29.569
perfusion by counteracting the massive ongoing

00:18:29.569 --> 00:18:32.430
volume losses from that inflammatory capillary

00:18:32.430 --> 00:18:35.769
leak. We treat this profound hypovolemia with

00:18:35.769 --> 00:18:38.710
volume replacement for deep partial and full

00:18:38.710 --> 00:18:41.869
thickness burns that are greater than 20 % TBSA.

00:18:42.289 --> 00:18:45.049
But before we even get to the math, we need the

00:18:45.049 --> 00:18:47.819
access. Right. What are the immediate rules for

00:18:47.819 --> 00:18:51.319
IV access? Two large caliber peripheral IVs,

00:18:51.420 --> 00:18:54.000
at least an eight engaged catheter, must be established

00:18:54.000 --> 00:18:56.380
immediately. The preferred site is the upper

00:18:56.380 --> 00:18:58.839
extremities. Why the upper extremities specifically?

00:18:59.019 --> 00:19:01.359
Well, if we place IVs in the lower extremities,

00:19:01.420 --> 00:19:03.759
specifically using the saphenous veins, there

00:19:03.759 --> 00:19:06.079
is a significantly increased risk of developing

00:19:06.079 --> 00:19:08.839
phlebitis and septic phlebitis, especially as

00:19:08.839 --> 00:19:10.700
the patient's condition evolves over the next

00:19:10.700 --> 00:19:13.240
few days. What if the extent of the burn? makes

00:19:13.240 --> 00:19:15.839
placing an IV through unburned skin impossible.

00:19:16.140 --> 00:19:18.180
Do we spend precious time looking for a central

00:19:18.180 --> 00:19:22.460
line? No. Time is perfusion. If placing the IV

00:19:22.460 --> 00:19:25.140
through unburned skin is genuinely impossible

00:19:25.140 --> 00:19:27.759
due to the extent of the injury, you must place

00:19:27.759 --> 00:19:30.599
the peripheral IV directly through the burn skin

00:19:30.599 --> 00:19:33.440
into an accessible vein. The risk of infection

00:19:33.440 --> 00:19:36.160
from a properly secured and maintained peripheral

00:19:36.160 --> 00:19:38.960
IV through the burn is lower than the risk of

00:19:38.960 --> 00:19:41.380
delayed resuscitation. And let's revisit that

00:19:41.380 --> 00:19:43.720
high -yield nursing detail regarding the swelling

00:19:43.720 --> 00:19:46.200
and the catheters. Yeah, this is important. Given

00:19:46.200 --> 00:19:49.960
the guarantee of massive edema, standard short

00:19:49.960 --> 00:19:53.599
IV catheters are highly susceptible to dislodgement

00:19:53.599 --> 00:19:56.339
or kinking as the soft tissue just swells up

00:19:56.339 --> 00:19:58.980
around them. So we advocate for the use of longer

00:19:58.980 --> 00:20:01.539
IV catheters in patients with larger burns. To

00:20:01.539 --> 00:20:03.079
give you more of a margin for error. It gives

00:20:03.079 --> 00:20:04.920
you a much greater margin of safety, ensuring

00:20:04.920 --> 00:20:07.099
the catheter remains securely seated in the vessel

00:20:07.099 --> 00:20:09.339
despite that aggressive tissue swelling. OK,

00:20:09.420 --> 00:20:12.079
so The fluid choice is warm disatonic crystalloid,

00:20:12.380 --> 00:20:15.380
usually lactated ringers. But how do we monitor

00:20:15.380 --> 00:20:18.480
efficacy when traditional vital signs like blood

00:20:18.480 --> 00:20:20.859
pressure are notoriously unreliable in these

00:20:20.859 --> 00:20:22.980
patients? You're right to question the traditional

00:20:22.980 --> 00:20:25.519
monitoring. Blood pressure can be inaccurate,

00:20:26.000 --> 00:20:28.980
it's difficult to obtain in severely burned extremities,

00:20:29.240 --> 00:20:31.660
and it's often falsely elevated early on due

00:20:31.660 --> 00:20:34.019
to high catecholamine levels from pain and stress.

00:20:34.119 --> 00:20:36.559
So what do we use instead? The primary monitoring

00:20:36.559 --> 00:20:39.819
tool that reflects true end organ perfusion is

00:20:39.819 --> 00:20:42.559
the indwelling urinary catheter and the hourly

00:20:42.559 --> 00:20:46.140
urine output, or UOP, target. This is the gold

00:20:46.140 --> 00:20:49.079
standard for guiding resuscitation. Now, for

00:20:49.079 --> 00:20:52.380
the crucial math, the consensus fluid formulas,

00:20:52.819 --> 00:20:55.000
this is what every clinician has to calculate

00:20:55.000 --> 00:20:57.289
immediately upon presentation. And we have to

00:20:57.289 --> 00:20:59.430
use the current guidelines, which aim to prevent

00:20:59.430 --> 00:21:02.009
the over -resuscitation we saw with older, higher

00:21:02.009 --> 00:21:05.190
-volume formulas. For adults, defined as 14 years

00:21:05.190 --> 00:21:08.410
and older, the baseline calculation is 2 mL times

00:21:08.410 --> 00:21:11.809
kilograms times percent TBSA. Just for partial

00:21:11.809 --> 00:21:13.609
and full thickness burns, right? Correct, only

00:21:13.609 --> 00:21:15.549
for partial and full thickness. The target UOP

00:21:15.549 --> 00:21:19.069
for adults is pretty narrow, 0 .5 mL per kilo

00:21:19.069 --> 00:21:21.710
per hour, which translates roughly to 30 to 50

00:21:21.710 --> 00:21:24.309
mL per hour. And the requirements escalate dramatically

00:21:24.309 --> 00:21:26.950
for children. why the higher volume for the pediatric

00:21:26.950 --> 00:21:29.650
patient. Children have a much greater body surface

00:21:29.650 --> 00:21:31.769
area relative to their weight compared to adults.

00:21:32.390 --> 00:21:35.089
That means they lose heat and volume proportionally

00:21:35.089 --> 00:21:38.670
faster. So for children under 14 years, the starting

00:21:38.670 --> 00:21:42.390
calculation is 3 mL times kilogram times percent

00:21:42.390 --> 00:21:46.829
TBSA. Their target UOP is higher at 1 mL per

00:21:46.829 --> 00:21:49.130
kilo per hour. And for the youngest patients?

00:21:49.450 --> 00:21:51.690
For infants and young children, so those less

00:21:51.690 --> 00:21:54.650
than or equal to 30 kilograms, they also start

00:21:54.650 --> 00:21:58.630
at 3 mL times kilogram times TBSA, plus they

00:21:58.630 --> 00:22:01.569
require maintenance fluids, specifically D5LR.

00:22:01.769 --> 00:22:03.930
And why the D5, the dextrose in that younger

00:22:03.930 --> 00:22:06.210
group? They have much smaller glycogen stores

00:22:06.210 --> 00:22:08.930
and a higher metabolic rate. That places them

00:22:08.930 --> 00:22:11.490
at significant risk for hypoglycemia during the

00:22:11.490 --> 00:22:13.769
shock phase. The dextrose in the maintenance

00:22:13.769 --> 00:22:15.990
fluids prevents this while ensuring they receive

00:22:15.990 --> 00:22:18.750
the necessary volume. Their UOP target remains

00:22:18.750 --> 00:22:21.369
1 ml per kilo per hour. Okay, let's nail down

00:22:21.369 --> 00:22:23.509
the critical timing and the administration schedule.

00:22:23.710 --> 00:22:25.869
This is where pre -hospital delays become a huge

00:22:25.869 --> 00:22:29.029
factor. The clock for fluid administration starts

00:22:29.029 --> 00:22:31.869
at the exact moment of injury, not when the patient

00:22:31.869 --> 00:22:34.029
arrives at the hospital. This piece of information

00:22:34.029 --> 00:22:36.950
is absolutely essential. And how is the total

00:22:36.950 --> 00:22:39.210
volume administered? It's staggered. You give

00:22:39.210 --> 00:22:41.769
half of that total calculated volume in the first

00:22:41.769 --> 00:22:44.029
eight hours from the time of injury. Then you

00:22:44.029 --> 00:22:46.349
give the remaining half over the subsequent 16

00:22:46.349 --> 00:22:48.430
hours. Let's run a quick example to illustrate

00:22:48.430 --> 00:22:52.210
the pressure. Say a 70 kilo adult has a 40 percent

00:22:52.210 --> 00:22:55.829
TPS A burn and arrives six hours post injury.

00:22:56.119 --> 00:23:00.859
Total fluid. 2 ml times 70 kilos times 40 percent.

00:23:01.180 --> 00:23:04.559
That's 5 ,600 ml. Right. So half of that is 2

00:23:04.559 --> 00:23:07.759
,800 ml. Since six of the first eight hours are

00:23:07.759 --> 00:23:10.779
already gone, the team has to infuse 2 ,800 ml

00:23:10.779 --> 00:23:13.700
in only two hours. That's a staggering rate of

00:23:13.700 --> 00:23:16.440
1 ,400 ml per hour just to catch up. That is

00:23:16.440 --> 00:23:18.579
the reality. And it highlights why obtaining

00:23:18.579 --> 00:23:20.680
the precise time of injury is absolutely non

00:23:20.680 --> 00:23:23.500
-negotiable. But here is the most crucial management

00:23:23.500 --> 00:23:25.769
point for the nursing staff. Okay. The formulas

00:23:25.769 --> 00:23:28.170
are a starting point, not a rigid prescription.

00:23:28.470 --> 00:23:31.410
Titration is the key. If the UOP drops below

00:23:31.410 --> 00:23:33.869
target, the best intervention is to increase

00:23:33.869 --> 00:23:37.029
the fluid rate by 20 to 30 percent, not to administer

00:23:37.029 --> 00:23:40.390
large sudden boluses unless the patient is profoundly

00:23:40.390 --> 00:23:42.890
hypotensive. And the trap at the eight -hour

00:23:42.890 --> 00:23:46.720
mark, what happens then? Do not under any circumstances

00:23:46.720 --> 00:23:49.440
precipitously drop the infusion rate by half

00:23:49.440 --> 00:23:51.660
at the eight -hour mark simply because the time

00:23:51.660 --> 00:23:54.259
guideline changed. You must maintain whatever

00:23:54.259 --> 00:23:57.599
rate is required to hit your UOP goal. If the

00:23:57.599 --> 00:24:01.279
UOP is excellent, say 50 ml per hour in our 70

00:24:01.279 --> 00:24:03.720
kilo patient, you may continue decreasing the

00:24:03.720 --> 00:24:06.519
rate gradually, but the primary driver of fluid

00:24:06.519 --> 00:24:09.259
adjustment must always be the urine output. What

00:24:09.259 --> 00:24:11.799
are the consequences of missing this narrow window?

00:24:12.109 --> 00:24:14.930
the pitfalls of under and over resuscitation.

00:24:15.269 --> 00:24:18.250
Under resuscitation is obvious. You get hypoperfusion

00:24:18.250 --> 00:24:21.190
and organ ischemia, acute kidney injury. The

00:24:21.190 --> 00:24:23.470
less obvious and often more dangerous threat

00:24:23.470 --> 00:24:26.869
in modern burn care is over resuscitation. Excess

00:24:26.869 --> 00:24:29.170
fluid leads to even greater edema, which can

00:24:29.170 --> 00:24:32.160
actually drive burn depth progression. A superficial

00:24:32.160 --> 00:24:34.759
partial thickness burn can be converted to a

00:24:34.759 --> 00:24:37.119
deep partial or even a full thickness injury

00:24:37.119 --> 00:24:39.779
simply by excessive swelling cutting off the

00:24:39.779 --> 00:24:41.980
local blood supply. And this edema contributes

00:24:41.980 --> 00:24:44.160
directly to our secondary complication risk like

00:24:44.160 --> 00:24:46.470
compartment syndrome. Absolutely. The excess

00:24:46.470 --> 00:24:49.009
fluid is the fuel for abdominal and extremity

00:24:49.009 --> 00:24:52.089
compartment syndromes. It's a very delicate balance

00:24:52.089 --> 00:24:54.769
to achieve hemodynamic stability without drowning

00:24:54.769 --> 00:24:57.730
the tissues in unnecessary fluid. Finally, what

00:24:57.730 --> 00:25:01.170
about monitoring other vital signs? Why is tachycardia,

00:25:01.269 --> 00:25:03.589
which is a classic sign of hypovolemia, such

00:25:03.589 --> 00:25:06.549
a poor marker here? Burned patients are in severe

00:25:06.549 --> 00:25:08.930
pain and stress, and they often have a baseline

00:25:08.930 --> 00:25:11.940
hypermetabolic state. Therefore, tachycardia

00:25:11.940 --> 00:25:14.660
is common and it's persistent, regardless of

00:25:14.660 --> 00:25:17.380
their hydration status. Relying on it as a primary

00:25:17.380 --> 00:25:19.480
measure of resuscitation is really misleading.

00:25:19.849 --> 00:25:21.990
So what should we focus on instead? You should

00:25:21.990 --> 00:25:24.849
focus instead on UOP mental status and their

00:25:24.849 --> 00:25:27.170
acid -based balance. Persistence in acidemia,

00:25:27.210 --> 00:25:29.269
for instance, might signal inadequate volume

00:25:29.269 --> 00:25:31.230
replacement leading to anaerobic metabolism,

00:25:31.490 --> 00:25:33.950
or conversely, it could indicate a massive infusion

00:25:33.950 --> 00:25:37.470
of normal saline, which is acidotic. ECG monitoring

00:25:37.470 --> 00:25:39.890
is vital, as dysrhythmias may be the first sign

00:25:39.890 --> 00:25:42.869
of hypoxia or electrolyte imbalance. Okay, so

00:25:42.869 --> 00:25:45.450
with immediate life threats managed and resuscitation

00:25:45.450 --> 00:25:48.720
underway, we move to the secondary survey. Gathering

00:25:48.720 --> 00:25:50.839
the history using the Amy Kille framework is

00:25:50.839 --> 00:25:54.220
essential here, specifically to determine associated

00:25:54.220 --> 00:25:56.900
injuries and the precise time of the burn. History

00:25:56.900 --> 00:25:59.539
is often neglected in the chaos, but it informs

00:25:59.539 --> 00:26:02.619
every aspect of care. We need to know the exact

00:26:02.619 --> 00:26:05.559
time of injury for our fluid calculation. We

00:26:05.559 --> 00:26:07.940
need to know the mechanism. Was the patient escaping

00:26:07.940 --> 00:26:10.500
a fire, suggesting fractures or head injury?

00:26:11.079 --> 00:26:13.140
Was there an explosion, suggesting potential

00:26:13.140 --> 00:26:15.940
internal injuries like blast lung or blunt trauma?

00:26:16.119 --> 00:26:18.539
And tetanus status. And we also need to immediately

00:26:18.539 --> 00:26:21.279
establish and manage tetanus status as all deep

00:26:21.279 --> 00:26:24.069
burns are considered contaminated wounds. Let's

00:26:24.069 --> 00:26:26.009
talk about the assessment tools, particularly

00:26:26.009 --> 00:26:28.609
the estimation of burn size, which directly influences

00:26:28.609 --> 00:26:31.869
resuscitation. What is the fundamental rule when

00:26:31.869 --> 00:26:34.450
applying the rule of nines? The fundamental rule

00:26:34.450 --> 00:26:37.509
is to avoid overestimation. So do not include

00:26:37.509 --> 00:26:39.890
superficial burns or first degree burns in your

00:26:39.890 --> 00:26:43.109
TBSA calculation. First degree burns, like a

00:26:43.109 --> 00:26:45.390
standard sunburn, are characterized by erythema

00:26:45.390 --> 00:26:48.599
and pain, but they lack blistering. This means

00:26:48.599 --> 00:26:51.539
the dermal layer is intact and there's no significant

00:26:51.539 --> 00:26:54.660
capillary leak or fluid shift that requires resuscitation

00:26:54.660 --> 00:26:57.759
calculation. We only include partial and full

00:26:57.759 --> 00:27:00.200
thickness burns in the formula. And what's the

00:27:00.200 --> 00:27:02.680
critical difference between using the rule of

00:27:02.680 --> 00:27:05.299
nines for an adult versus a child? The standard

00:27:05.299 --> 00:27:08.619
rule of nines, 9 % for the head, nine for each

00:27:08.619 --> 00:27:11.700
arm, 18 for the trunk, front and back, 18 for

00:27:11.700 --> 00:27:14.339
each leg, that's all based on adult body proportions.

00:27:14.900 --> 00:27:17.160
Children have a proportionately much larger head

00:27:17.160 --> 00:27:20.039
and smaller, lower extremities. For example,

00:27:20.359 --> 00:27:23.680
an infant's head might be 18 to 20 % of the TBSA,

00:27:23.740 --> 00:27:27.539
while each leg is only 13 to 14%. So clinicians

00:27:27.539 --> 00:27:30.579
must use adjusted pediatric burn diagrams, like

00:27:30.579 --> 00:27:32.619
one broader charts, or if they're unavailable,

00:27:32.839 --> 00:27:34.940
rely on the quick, practical method for irregular

00:27:34.940 --> 00:27:37.400
burns. Which is using the patient's palm. Yes,

00:27:37.519 --> 00:27:39.740
the patient's palm, including their fingers,

00:27:40.160 --> 00:27:43.319
is used to represent approximately 1 % TBSA.

00:27:43.740 --> 00:27:46.720
This is a reliable way to estimate small, irregular,

00:27:46.980 --> 00:27:50.619
or scattered burns. And never, ever forget to

00:27:50.619 --> 00:27:53.599
log roll the patient to assess the back. Burns

00:27:53.599 --> 00:27:56.720
are notoriously often hidden posteriorly. Let's

00:27:56.720 --> 00:27:58.480
quickly review the clinical distinction of burn

00:27:58.480 --> 00:28:01.099
depth, as this also affects prognosis and management.

00:28:01.210 --> 00:28:03.970
We use tactile and visual clues. Superficial

00:28:03.970 --> 00:28:05.990
partial thickness, or second degree, this is

00:28:05.990 --> 00:28:08.529
the Hallmark blister, the wound is moist, usually

00:28:08.529 --> 00:28:11.309
pink or red, very painfully hypersensitive even

00:28:11.309 --> 00:28:14.250
to air movement, and most importantly, it blanches

00:28:14.250 --> 00:28:17.230
briskly to touch, which indicates intact capillary

00:28:17.230 --> 00:28:20.329
perfusion. Okay, and deeper. A deep partial thickness

00:28:20.329 --> 00:28:22.529
burn has a drier appearance. It's modeled red

00:28:22.529 --> 00:28:24.690
or white. The key clinical distinction is that

00:28:24.690 --> 00:28:27.250
it's less painful, sensitive primarily to deep

00:28:27.250 --> 00:28:29.430
pressure, and critically, it does not blanch

00:28:29.430 --> 00:28:32.210
to pressure or it blanches very slowly. That

00:28:32.210 --> 00:28:34.589
indicates microvascular damage. And finally,

00:28:34.809 --> 00:28:37.150
full thickness. Full thickness, or third degree,

00:28:37.430 --> 00:28:40.670
is leathery, dry, and classically waxy white,

00:28:41.009 --> 00:28:44.359
opaque, or translucent. It is painless to light

00:28:44.359 --> 00:28:46.640
touch or pinprick because the nerve endings are

00:28:46.640 --> 00:28:49.500
destroyed. This tissue is non -pliable and it

00:28:49.500 --> 00:28:52.480
will require excision and grafting. That lack

00:28:52.480 --> 00:28:55.240
of pliability and full thickness burns, especially

00:28:55.240 --> 00:28:58.200
when they're circumferential, is the direct mechanism

00:28:58.200 --> 00:29:02.240
behind our most feared local complication. Compartment

00:29:02.240 --> 00:29:05.680
syndrome is a circulatory emergency. It results

00:29:05.680 --> 00:29:08.400
from two simultaneous factors, the inelastic

00:29:08.400 --> 00:29:10.859
nature of the burn escher, that leathery dead

00:29:10.859 --> 00:29:13.940
skin, and the mass of edema accumulating beneath

00:29:13.940 --> 00:29:16.769
it. driven by our resuscitation fluids. So the

00:29:16.769 --> 00:29:19.369
pressure just builds and builds. It rapidly compresses

00:29:19.369 --> 00:29:21.309
the muscles and nerves within the closed fascial

00:29:21.309 --> 00:29:23.730
compartments. If that pressure exceeds 30 millimeters

00:29:23.730 --> 00:29:26.049
of mercury, muscle necrosis, and permanent nerve

00:29:26.049 --> 00:29:28.690
damage begin. What are the high alert need to

00:29:28.690 --> 00:29:30.609
know warning signs that should trigger immediate

00:29:30.609 --> 00:29:32.849
concern, especially since the patient may be

00:29:32.849 --> 00:29:35.430
unconscious or sedated? Well, we teach the classic

00:29:35.430 --> 00:29:38.210
four P's, pain, pallor, or paresthesias, pulselessness,

00:29:38.369 --> 00:29:41.589
but we need the burn specific nuances. One, pain

00:29:41.589 --> 00:29:43.759
out of proportion to the injury or pain that

00:29:43.759 --> 00:29:47.420
persists despite adequate IV narcotics. Two,

00:29:47.799 --> 00:29:49.980
pain on passive stretch of the muscle group.

00:29:50.079 --> 00:29:52.619
For example, passively flexing the wrist for

00:29:52.619 --> 00:29:55.579
a forearm burn. How about it? tense swelling

00:29:55.579 --> 00:29:58.099
of the affected compartment. It will feel rock

00:29:58.099 --> 00:30:01.420
hard. And four, parasieges or altered sensation

00:30:01.420 --> 00:30:03.660
distal to the compartment. We have to have a

00:30:03.660 --> 00:30:06.160
high index of suspicion because pulselessness

00:30:06.160 --> 00:30:08.539
is often a late sign signifying that ischemia

00:30:08.539 --> 00:30:11.299
is already established. So what are the immediate

00:30:11.299 --> 00:30:14.480
proactive nursing actions before surgical intervention

00:30:14.480 --> 00:30:17.630
is needed? Early action is key. Remove all jewelry

00:30:17.630 --> 00:30:20.289
and any constricting items, watches, rings, ties,

00:30:20.650 --> 00:30:22.609
anything before significant swelling occurs.

00:30:23.029 --> 00:30:25.430
These items have to be cut off if removal is

00:30:25.430 --> 00:30:28.109
otherwise difficult. And we must repeatedly assess

00:30:28.109 --> 00:30:30.509
distal circulation, check and capillary refill,

00:30:30.930 --> 00:30:33.029
color, temperature, and progressive neurologic

00:30:33.029 --> 00:30:35.210
signs. And when assessing pulses through burned

00:30:35.210 --> 00:30:38.930
tissue, the Doppler is the definitive tool. Absolutely.

00:30:39.349 --> 00:30:41.829
The Doppler ultrasonic flow meter provides the

00:30:41.829 --> 00:30:44.609
most objective and reliable assessment of peripheral

00:30:44.609 --> 00:30:47.730
pulses beneath the escher. If pulses are diminished

00:30:47.730 --> 00:30:50.630
or absent, especially in a circumferential burn,

00:30:51.410 --> 00:30:54.109
surgical intervention is required. And that intervention

00:30:54.109 --> 00:30:57.369
is an escharotomy. It's an escharotomy, a surgical

00:30:57.369 --> 00:31:00.029
incision through the inelastic burned skin to

00:31:00.029 --> 00:31:03.069
relieve the pressure and restore flow. This typically

00:31:03.069 --> 00:31:05.450
happens after the first six hours of resuscitation,

00:31:05.650 --> 00:31:08.589
but it has to be anticipated. We often focus

00:31:08.589 --> 00:31:10.470
on the limbs, but you mentioned truncal compartment

00:31:10.470 --> 00:31:12.890
syndrome. How does that manifest? Circumferential

00:31:12.890 --> 00:31:15.730
burns to the chest can severely restrict chest

00:31:15.730 --> 00:31:19.009
wall expansion. As edema progresses, the patient

00:31:19.009 --> 00:31:21.369
requires greater force to inflate the lungs,

00:31:21.789 --> 00:31:23.809
leading to increased peak inspiratory pressures,

00:31:24.109 --> 00:31:26.309
decreased tidal volumes, and respiratory distress,

00:31:26.730 --> 00:31:29.049
even with an endotracheal tube in place. And

00:31:29.049 --> 00:31:31.549
that requires a chest esverotomy. A prompt one?

00:31:31.609 --> 00:31:34.700
Yes. Similarly, circumferential abdominal burns

00:31:34.700 --> 00:31:37.119
can lead to abdominal compartment syndrome, causing

00:31:37.119 --> 00:31:40.000
hemodynamic instability and reduced renal perfusion,

00:31:40.220 --> 00:31:42.960
requiring an abdominal escharotomy. Before we

00:31:42.960 --> 00:31:45.440
leave this section, let's revisit pain management

00:31:45.440 --> 00:31:48.519
and sedation. You cautioned against treating

00:31:48.519 --> 00:31:51.039
restlessness solely as pain. Restlessness is

00:31:51.039 --> 00:31:53.759
a nonspecific sign that demands a critical reassessment

00:31:53.759 --> 00:31:57.579
of the ABCs. It can be a sign of hypoxemia, hypoxia,

00:31:57.700 --> 00:32:00.900
or hypovolemia. You must ensure resuscitation

00:32:00.900 --> 00:32:03.980
and oxygenation are optimized first. Once those

00:32:03.980 --> 00:32:06.640
are ruled out, then you address the pain. And

00:32:06.640 --> 00:32:09.220
how should analgesics be administered? Analgesics

00:32:09.220 --> 00:32:11.619
and sedatives must be administered intravenously

00:32:11.619 --> 00:32:14.619
only in small, frequent doses. Why the strict

00:32:14.619 --> 00:32:17.339
IV -only rule? because absorption of medications

00:32:17.339 --> 00:32:20.339
given intramuscularly or subcutaneously is unpredictable

00:32:20.339 --> 00:32:22.759
and delayed in the presence of massive soft tissue

00:32:22.759 --> 00:32:25.559
edema and shock. As resuscitation progresses

00:32:25.559 --> 00:32:28.180
and perfusion returns, those accumulated doses

00:32:28.180 --> 00:32:30.420
can be suddenly released, leading to a massive

00:32:30.420 --> 00:32:33.500
overdose and respiratory depression. Four administration

00:32:33.500 --> 00:32:36.160
ensures rapid onset, predictable dosing, and

00:32:36.160 --> 00:32:38.400
tight control. Finally, wound care basics for

00:32:38.400 --> 00:32:40.380
the emergency room. What are the essential immediate

00:32:40.380 --> 00:32:43.819
rules? Never apply cold water or cold compresses

00:32:43.819 --> 00:32:46.079
to extensive burns. That means burns greater

00:32:46.079 --> 00:32:49.640
than 10 % TBSA, because this dramatically increases

00:32:49.640 --> 00:32:52.160
the risk of severe hypothermia, which is catastrophic

00:32:52.160 --> 00:32:55.380
to the patient. OK. Also, do not break intact

00:32:55.380 --> 00:32:58.220
blisters. They function as a temporary sterile

00:32:58.220 --> 00:33:01.099
biological dressing. Clean dirty wounds gently

00:33:01.099 --> 00:33:03.759
with sterile saline and protect all fresh burns

00:33:03.759 --> 00:33:06.539
from environmental contamination universal precautions,

00:33:07.119 --> 00:33:09.240
including gloves and gowns for all caregivers,

00:33:09.720 --> 00:33:12.339
are mandatory. What about the common temptation

00:33:12.339 --> 00:33:15.960
to start systemic antibiotics immediately? Prophylactic

00:33:15.960 --> 00:33:18.279
systemic antibiotics are not indicated in the

00:33:18.279 --> 00:33:20.759
early post -burn period. They don't prevent subsequent

00:33:20.759 --> 00:33:23.240
infection and they only serve to select for resistant

00:33:23.240 --> 00:33:26.160
organisms. Antibiotics should be reserved strictly

00:33:26.160 --> 00:33:28.640
for documented or strongly suspected infection.

00:33:28.839 --> 00:33:31.519
And again, always determine and manage the patient's

00:33:31.519 --> 00:33:34.519
tetanus immunization status. Let's pivot to the

00:33:34.519 --> 00:33:36.460
injury patterns that break the conventional rules.

00:33:37.240 --> 00:33:40.539
First, a deeper dive into chemical burns. We

00:33:40.539 --> 00:33:42.759
established that alkalis are more dangerous due

00:33:42.759 --> 00:33:46.180
to liquefaction necrosis. What are the key management

00:33:46.180 --> 00:33:49.180
pitfalls specific to chemical exposure? The primary

00:33:49.180 --> 00:33:51.380
pitfall is the attempt to neutralize the agent.

00:33:51.660 --> 00:33:54.539
do not use neutralizing agents. The chemical

00:33:54.539 --> 00:33:57.119
reaction itself is exothermic. It produces heat,

00:33:57.480 --> 00:33:59.680
and that heat will inflict a secondary thermal

00:33:59.680 --> 00:34:02.160
injury, which worsens the tissue damage caused

00:34:02.160 --> 00:34:05.460
by the primary chemical. We rely entirely on

00:34:05.460 --> 00:34:08.000
massive, sustained dilution with warmed water

00:34:08.000 --> 00:34:10.940
or saline. And the specific detail for ocular

00:34:10.940 --> 00:34:13.460
injuries involving alkali. Alkaline brings to

00:34:13.460 --> 00:34:16.019
the eye are true emergencies because they penetrate

00:34:16.019 --> 00:34:18.719
so rapidly and cause devastating, often permanent,

00:34:18.760 --> 00:34:21.760
injury. They require continuous irrigation for

00:34:21.760 --> 00:34:24.280
the first eight hours, often requiring specialized

00:34:24.280 --> 00:34:26.599
equipment to maintain constant flushing. What

00:34:26.599 --> 00:34:29.199
if the chemical is unknown or if there is a risk

00:34:29.199 --> 00:34:32.110
of systemic toxicity? For unfamiliar compounds,

00:34:32.570 --> 00:34:34.230
especially in industrial settings, the first

00:34:34.230 --> 00:34:36.610
action after initiating irrigation is to obtain

00:34:36.610 --> 00:34:40.070
the material safety data sheet, or MSDS. It outlines

00:34:40.070 --> 00:34:43.530
specific risks, toxicity, and necessary decontamination

00:34:43.530 --> 00:34:46.329
procedures. And always contact a regional poison

00:34:46.329 --> 00:34:48.829
control center. They are invaluable resources

00:34:48.829 --> 00:34:51.670
for managing systemic absorption risks. Next,

00:34:52.329 --> 00:34:55.400
electrical burns. These are the most deceptive

00:34:55.400 --> 00:34:57.820
injuries where the skin may look almost normal,

00:34:58.039 --> 00:35:00.820
but there's massive internal damage hidden. Electrical

00:35:00.820 --> 00:35:03.760
injuries defy standard assessment. The current

00:35:03.760 --> 00:35:06.119
travels through structures with the lowest resistance

00:35:06.119 --> 00:35:09.400
nerves, blood vessels, and muscle. This causes

00:35:09.400 --> 00:35:12.420
deep muscle necrosis, often remote from the small

00:35:12.420 --> 00:35:15.380
surface entry and exit wounds. The current also

00:35:15.380 --> 00:35:18.300
causes intense vasospasm and thrombosis in the

00:35:18.300 --> 00:35:20.800
microvasculature, leading to progressive tissue

00:35:20.800 --> 00:35:23.079
ischemia. What about the muscle contractions?

00:35:23.260 --> 00:35:26.380
A high alert sign is the titanic, forced muscle

00:35:26.380 --> 00:35:28.780
contraction that occurs upon contact. What does

00:35:28.780 --> 00:35:30.639
that forced contraction lead to, clinically?

00:35:30.900 --> 00:35:33.039
It frequently causes secondary trauma, especially

00:35:33.039 --> 00:35:35.139
fractures. We must always examine for spinal

00:35:35.139 --> 00:35:37.440
and long bone fractures. And the high muscle

00:35:37.440 --> 00:35:39.599
activity is what drives the major life -threatening

00:35:39.599 --> 00:35:42.559
risk. Of bone myelosis. Okay, let's focus on

00:35:42.559 --> 00:35:45.519
that musculoskeletal and renal risk. Electricity

00:35:45.519 --> 00:35:47.860
causes massive tissue breakdown, flooding the

00:35:47.860 --> 00:35:50.659
system with myoglobin. How do we manage this,

00:35:50.940 --> 00:35:53.820
and how does it change our fluid strategy? Myoglobin,

00:35:53.820 --> 00:35:56.019
if it's allowed to concentrate, precipitates

00:35:56.019 --> 00:35:58.440
in the renal tubules, leading to acute renal

00:35:58.440 --> 00:36:02.039
failure. So we must institute aggressive fluid

00:36:02.039 --> 00:36:04.780
resuscitation immediately to flush the kidneys.

00:36:05.320 --> 00:36:07.139
You assume hemochromogens are present if the

00:36:07.139 --> 00:36:09.219
patient's urine is dark red or brown even before

00:36:09.219 --> 00:36:11.420
you get lab confirmation. And this demands a

00:36:11.420 --> 00:36:13.500
significant change in the fluid resuscitation

00:36:13.500 --> 00:36:16.329
math. A critical change. For electrical burn

00:36:16.329 --> 00:36:19.090
injury, the standard Parkland or consensus formula

00:36:19.090 --> 00:36:21.809
is replaced. We start resuscitation immediately

00:36:21.809 --> 00:36:26.190
at 4 mL times kilojoules times percent TBSA LR.

00:36:26.349 --> 00:36:29.150
That's an increase of 50 to 100 percent over

00:36:29.150 --> 00:36:31.510
the standard formula, specifically to prevent

00:36:31.510 --> 00:36:34.030
renal failure. And the target urine output changes

00:36:34.030 --> 00:36:36.710
dramatically as well. The goal is no longer 30

00:36:36.710 --> 00:36:39.150
to 50 mL per hour. The immediate high -volume

00:36:39.150 --> 00:36:41.670
urine output target modification is to aim for

00:36:41.670 --> 00:36:45.780
100 mL per hour in a adults and 1 to 1 .5 ml

00:36:45.780 --> 00:36:48.920
per kilo per hour in children. This high output

00:36:48.920 --> 00:36:51.059
rate must be maintained until the urine visibly

00:36:51.059 --> 00:36:54.139
clears of pigmentation. Only once the urine is

00:36:54.139 --> 00:36:56.699
pale and clear do you titrate the IV fluid down

00:36:56.699 --> 00:37:00.239
to the standard burn rate of 0 .5 ml per kilo

00:37:00.239 --> 00:37:02.780
per hour. And we also often consult the burn

00:37:02.780 --> 00:37:05.699
unit before using alkalinizing agents like bicarbonate

00:37:05.699 --> 00:37:08.579
or mannitol as their use is debated and complex.

00:37:10.440 --> 00:37:14.699
to extremely sticky thermal injury, tar burns.

00:37:15.179 --> 00:37:18.139
How do you safely remove molten tar, which can

00:37:18.139 --> 00:37:20.079
adhere and maintain extremely high temperatures?

00:37:20.360 --> 00:37:22.619
Tar is a thick, highly adhesive substance that

00:37:22.619 --> 00:37:25.639
can burn at temperatures up to 450 degrees Fahrenheit.

00:37:26.280 --> 00:37:28.860
The first step is rapid cooling, often with water,

00:37:28.980 --> 00:37:31.460
to stop the heat transfer. But attempting mechanical

00:37:31.460 --> 00:37:33.980
removal will cause severe pain and deeper trauma.

00:37:34.159 --> 00:37:36.420
There was a solution. The simple, elegant solution

00:37:36.420 --> 00:37:38.940
is using a substance that dissolves the tar without

00:37:38.940 --> 00:37:42.409
harming the injured skin. mineral oil or a non

00:37:42.409 --> 00:37:45.130
-petroleum -based antibiotic ointment. You apply

00:37:45.130 --> 00:37:47.530
it liberally, it's inert, and it allows the tar

00:37:47.530 --> 00:37:49.670
to gradually dissolve and be gently peeled away

00:37:49.670 --> 00:37:51.670
without inflicting further mechanical damage.

00:37:52.230 --> 00:37:54.409
Finally, we have to address suspicious injury

00:37:54.409 --> 00:37:57.250
patterns indicating potential abuse, especially

00:37:57.250 --> 00:37:59.670
in the most vulnerable populations, children

00:37:59.670 --> 00:38:02.530
and the elderly. What patterns should always

00:38:02.530 --> 00:38:05.119
raise clinical suspicion? We have to maintain

00:38:05.119 --> 00:38:08.079
a high index of suspicion and objectively document

00:38:08.079 --> 00:38:10.440
the pattern of injury. You look for patterns

00:38:10.440 --> 00:38:12.699
that are inconsistent with the history provided.

00:38:13.239 --> 00:38:16.639
For instance, burns with clear sharp edges or

00:38:16.639 --> 00:38:19.900
circular burns often suggest contact with a specific

00:38:19.900 --> 00:38:22.539
hot object like a cigarette, an iron, or a heating

00:38:22.539 --> 00:38:25.300
element. What about immersion burns? Those are

00:38:25.300 --> 00:38:27.699
often highly suggestive of non -accidental trauma.

00:38:27.929 --> 00:38:30.650
Immersion burns, especially scald injuries, leave

00:38:30.650 --> 00:38:33.250
distinct patterns. In children, burns on the

00:38:33.250 --> 00:38:35.690
soles of the feet or the buttocks, or a stocking

00:38:35.690 --> 00:38:37.869
glove pattern where the extremity is uniformly

00:38:37.869 --> 00:38:40.730
burned with clear lines of demarcation, suggest

00:38:40.730 --> 00:38:42.989
the child was forcefully immersed in hot water.

00:38:43.050 --> 00:38:45.789
As opposed to an accident. Right. A child falling

00:38:45.789 --> 00:38:48.309
into hot water naturally attempts to step out

00:38:48.309 --> 00:38:51.110
or splash, which leads to a non -uniform pattern.

00:38:51.710 --> 00:38:54.570
A uniform, deep, and symmetric burn strongly

00:38:54.570 --> 00:38:57.699
suggest forced, non -accidental immersion. For

00:38:57.699 --> 00:39:00.880
elderly patients, similar posterior lower extremity

00:39:00.880 --> 00:39:03.679
or buttocks burns may suggest intentional neglect

00:39:03.679 --> 00:39:06.400
or placement into water that was too hot. The

00:39:06.400 --> 00:39:08.639
mechanism provided by the caregiver must match

00:39:08.639 --> 00:39:11.380
the documented injury pattern. Shifting to the

00:39:11.380 --> 00:39:14.760
opposite end of the spectrum, cold injury. While

00:39:14.760 --> 00:39:16.699
it's a different mechanism, the outcome tissue

00:39:16.699 --> 00:39:20.179
anoxia and necrosis is the same. Let's distinguish

00:39:20.179 --> 00:39:22.380
between the two major types of local cold injury.

00:39:22.699 --> 00:39:25.119
We have frostbite, which involves actual tissue

00:39:25.119 --> 00:39:27.880
freezing. Ice crystals form. They mechanically

00:39:27.880 --> 00:39:30.219
injure cells and cause massive microvascular

00:39:30.219 --> 00:39:33.179
occlusion and subsequent tissue death. It's classified

00:39:33.179 --> 00:39:35.820
by depth, similar to burns, from superficial

00:39:35.820 --> 00:39:38.500
first degree to deep fourth degree involving

00:39:38.500 --> 00:39:40.860
muscle and bone. And the other type. Then we

00:39:40.860 --> 00:39:43.159
have non -freezing injury, often called French

00:39:43.159 --> 00:39:45.179
foot or immersion foot. And what causes that?

00:39:45.280 --> 00:39:48.199
This results from prolonged exposure to wet conditions

00:39:48.199 --> 00:39:50.659
and temperatures just above freezing, roughly

00:39:50.659 --> 00:39:54.159
1 .6 to 10 degrees Celsius. There is no actual

00:39:54.159 --> 00:39:57.300
freezing, but the cold, wet conditions cause

00:39:57.300 --> 00:40:00.760
profound sustained vasoconstriction and direct

00:40:00.760 --> 00:40:03.920
microvascular endothelial damage. This leads

00:40:03.920 --> 00:40:06.460
to stasis and occlusion over time. What is the

00:40:06.460 --> 00:40:09.380
clinical timeline for trench foot? The affected

00:40:09.380 --> 00:40:12.559
part is initially cold, numb, and pale, but after

00:40:12.559 --> 00:40:15.320
the exposure ends, during the rewarming and hypereomic

00:40:15.320 --> 00:40:19.360
phase, usually 24 to 48 hours later, the patient

00:40:19.360 --> 00:40:22.139
experiences this intense, almost unbearable,

00:40:22.420 --> 00:40:25.119
painful burning and dysesthesia that's a key

00:40:25.119 --> 00:40:27.789
clinical differentiator from frostbite. Now,

00:40:27.849 --> 00:40:29.650
the acute management of frostbite, this is a

00:40:29.650 --> 00:40:32.130
sequence where timing is everything, especially

00:40:32.130 --> 00:40:34.610
concerning rewarming. The immediate rule of frostbite

00:40:34.610 --> 00:40:37.309
is do not attempt rewarming if there's any chance

00:40:37.309 --> 00:40:39.969
of refreezing. Thawing and then refreezing causes

00:40:39.969 --> 00:40:42.670
massive irreversible tissue damage. If the patient

00:40:42.670 --> 00:40:44.730
has to walk out of the environment or if transport

00:40:44.730 --> 00:40:46.789
conditions are unstable, you keep the tissue

00:40:46.789 --> 00:40:49.329
frozen until they reach a definitive warm care

00:40:49.329 --> 00:40:51.869
environment. Once they are safe, what is the

00:40:51.869 --> 00:40:55.170
precise controlled method for thawing? We use

00:40:55.170 --> 00:40:57.510
rapid constant rewarming. The injured part is

00:40:57.510 --> 00:40:59.929
placed into circulating water at a constant 40

00:40:59.929 --> 00:41:03.349
degrees Celsius or 104 degrees Fahrenheit until

00:41:03.349 --> 00:41:05.869
the tissue turns red and pliable, indicating

00:41:05.869 --> 00:41:08.849
perfusion has returned. This typically takes

00:41:08.849 --> 00:41:12.349
20 to 30 minutes. And the crucial do -nots during

00:41:12.349 --> 00:41:15.289
this process. Do not use dry heat sources like

00:41:15.289 --> 00:41:18.389
radiators or campfires. They cause uncontrolled,

00:41:18.630 --> 00:41:20.969
unequal heating and increase the risk of a secondary

00:41:20.969 --> 00:41:23.710
burn, especially since the tissue is insensate.

00:41:23.840 --> 00:41:27.119
And crucially, do not rub, massage, or use friction

00:41:27.119 --> 00:41:29.420
on the area. Why not? The tissue is extremely

00:41:29.420 --> 00:41:32.139
fragile and friction will shred the already damaged

00:41:32.139 --> 00:41:35.300
cell membranes. And since rewarming is excruciatingly

00:41:35.300 --> 00:41:38.320
painful, adequate intravenous narcotic analgesia

00:41:38.320 --> 00:41:40.440
is essential to allow the patient to tolerate

00:41:40.440 --> 00:41:43.320
the necessary procedure. Rewarming a large frozen

00:41:43.320 --> 00:41:45.960
area carries a systemic risk, which clinicians

00:41:45.960 --> 00:41:48.960
have to monitor closely. Yes, this is the risk

00:41:48.960 --> 00:41:52.309
of reperfusion syndrome. As frozen tissue thaws

00:41:52.309 --> 00:41:54.829
and blood returns, locally accumulated waste

00:41:54.829 --> 00:41:57.050
products, including high levels of potassium,

00:41:57.449 --> 00:42:00.050
are suddenly released into the systemic circulation.

00:42:00.730 --> 00:42:03.210
This risk requires careful cardiac monitoring

00:42:03.210 --> 00:42:05.869
for dysrhythmias and monitoring of electrolytes

00:42:05.869 --> 00:42:09.289
and blood gases for metabolic acidosis and hyperkalemia.

00:42:09.630 --> 00:42:11.849
Let's discuss local wound care for frostbite.

00:42:11.960 --> 00:42:14.420
particularly the blister management. Once it's

00:42:14.420 --> 00:42:16.840
re -warmed, the tissue is protected by elevation

00:42:16.840 --> 00:42:19.860
to limit swelling, often using a tent or a cradle

00:42:19.860 --> 00:42:22.659
over the extremity to prevent pressure and friction.

00:42:23.440 --> 00:42:26.940
Regarding blisters, we leave clear, non -hemorrhagic,

00:42:27.039 --> 00:42:29.800
non -infected blisters intact. Why is that? They

00:42:29.800 --> 00:42:32.480
act as a sterile biological dressing, promoting

00:42:32.480 --> 00:42:35.500
underlying epithelialization. Hemorrhagic blisters,

00:42:35.579 --> 00:42:37.579
which are dark and blood -filled, usually signify

00:42:37.579 --> 00:42:40.539
a deeper, more severe injury and are often debrided.

00:42:41.260 --> 00:42:43.480
Active management includes withholding all tobacco

00:42:43.480 --> 00:42:46.380
products, as nicotine is a potent vasoconstrictor

00:42:46.380 --> 00:42:48.460
that impairs microcirculatory flow, which is

00:42:48.460 --> 00:42:51.000
already severely compromised. And the key distinction

00:42:51.000 --> 00:42:53.400
in prognosis' timeline compared to a burn. This

00:42:53.400 --> 00:42:56.179
is a major difference. Estimating the final depth

00:42:56.179 --> 00:42:58.780
and extent of tissue death in frostbite is highly

00:42:58.780 --> 00:43:01.559
inaccurate in the first few days. Final tissue

00:43:01.559 --> 00:43:04.619
demarcation. That clear line between viable and

00:43:04.619 --> 00:43:07.920
non -viable tissue takes weeks, sometimes months,

00:43:08.119 --> 00:43:10.820
to fully develop. So surgery is delayed. It means

00:43:10.820 --> 00:43:13.280
surgical intervention, such as amputation, is

00:43:13.280 --> 00:43:15.820
rarely necessary in the acute phase unless a

00:43:15.820 --> 00:43:18.380
life -threatening infection is present. This

00:43:18.380 --> 00:43:20.639
protracted assessment period shifts the focus

00:43:20.639 --> 00:43:23.739
heavily onto long -term supportive care and observation.

00:43:24.300 --> 00:43:27.219
Finally, systemic hypothermia. This is a core

00:43:27.219 --> 00:43:30.139
temperature below 36 degrees Celsius, and it

00:43:30.139 --> 00:43:32.900
complicates all trauma, including burns and environmental

00:43:32.900 --> 00:43:35.750
cool injury. Systemic hypothermia must be prevented

00:43:35.750 --> 00:43:38.230
or aggressively treated. It profoundly worsens

00:43:38.230 --> 00:43:41.309
coagulopathy, increases the risk of cardiac arrhythmias,

00:43:41.489 --> 00:43:43.929
and impairs almost all organ system functions.

00:43:44.550 --> 00:43:46.789
The nursing priority is limiting heat loss through

00:43:46.789 --> 00:43:49.289
passive and active rewarming techniques. What

00:43:49.289 --> 00:43:51.429
defines the difference between passive and active

00:43:51.429 --> 00:43:53.789
rewarming? Passive rewarming is used for mild

00:43:53.789 --> 00:43:57.239
hypothermia, so above 34 degrees Celsius. This

00:43:57.239 --> 00:44:00.199
relies on the patient's own intact thermoregulatory

00:44:00.199 --> 00:44:03.360
mechanism. We simply reduce heat loss using dry

00:44:03.360 --> 00:44:07.099
clothing, blankets, and a warm environment. Active

00:44:07.099 --> 00:44:09.260
rewarming is required for moderate and severe

00:44:09.260 --> 00:44:12.860
hypothermia, so below 32 degrees Celsius. This

00:44:12.860 --> 00:44:15.300
involves supplying external heat, such as warmed

00:44:15.300 --> 00:44:18.260
5e fluids, applying warmed packs or heating devices

00:44:18.260 --> 00:44:20.800
to areas of high vascular flow like the axilla

00:44:20.800 --> 00:44:24.119
and groin, or in severe cases, using advanced

00:44:24.119 --> 00:44:27.380
methods like warmed peritoneal lavage or circulatory

00:44:27.380 --> 00:44:30.119
bypass. Okay, so the initial stabilization of

00:44:30.119 --> 00:44:32.420
a complex injury often means preparing the patient

00:44:32.420 --> 00:44:35.340
for transfer to a specialized burn center. Knowing

00:44:35.340 --> 00:44:38.320
the American Burn Association, or ABA, transfer

00:44:38.320 --> 00:44:40.599
criteria is essential triage knowledge that guides

00:44:40.599 --> 00:44:42.840
resource allocation. These guidelines ensure

00:44:42.840 --> 00:44:45.400
that complex injuries, which demand multidisciplinary

00:44:45.400 --> 00:44:47.579
specialty care, receive it quickly. There are

00:44:47.579 --> 00:44:50.179
10 specific categories that mandate transfer

00:44:50.179 --> 00:44:52.440
to a burn center. Let's review those 10 categories

00:44:52.440 --> 00:44:54.300
in detail, as this really forms the framework

00:44:54.300 --> 00:44:57.139
for all initial treatment decisions. Okay. First,

00:44:57.380 --> 00:44:59.860
any partial thickness burns greater than 10 %

00:44:59.860 --> 00:45:03.420
TBSA in any age group. Second, burns involving

00:45:03.420 --> 00:45:06.619
functional or cosmetic areas, the face, hands,

00:45:06.880 --> 00:45:10.610
feet, genitalia, perineum burns over major joints.

00:45:11.150 --> 00:45:13.670
Third, all third degree or full thickness burns,

00:45:13.750 --> 00:45:16.750
regardless of the TVSA size. Fourth, electrical

00:45:16.750 --> 00:45:18.849
burns, including lightning injury due to the

00:45:18.849 --> 00:45:21.429
high risk of hidden deep tissue damage. Fifth,

00:45:21.690 --> 00:45:23.710
chemical burns due to the depth and systemic

00:45:23.710 --> 00:45:26.929
risk. And sixth, inhalation injury. What about

00:45:26.929 --> 00:45:29.289
comorbidities and associated trauma? Seventh,

00:45:29.469 --> 00:45:31.469
any burn injury in patients with pre -existing

00:45:31.469 --> 00:45:33.550
medical disorders that could complicate management,

00:45:33.949 --> 00:45:36.210
prolong recovery, or increase mortality risk,

00:45:36.269 --> 00:45:38.559
things like diabetes, severe car - cardiac disease

00:45:38.559 --> 00:45:41.179
or chronic kidney disease. Eighth, any patient

00:45:41.179 --> 00:45:44.079
with burns and concomitant trauma -like severe

00:45:44.079 --> 00:45:46.940
fractures or a head injury, where the burn injury

00:45:46.940 --> 00:45:49.300
itself poses the greatest threat to morbidity

00:45:49.300 --> 00:45:51.860
or mortality. And the final two categories address

00:45:51.860 --> 00:45:55.219
logistics and demographics. Ninth, burn children

00:45:55.219 --> 00:45:57.980
in hospitals that lack qualified pediatric personnel

00:45:57.980 --> 00:46:01.360
or equipment. And tenth, burn injury in patients

00:46:01.360 --> 00:46:04.320
who will require special, social, emotional,

00:46:04.579 --> 00:46:07.039
or rehabilitative intervention that cannot be

00:46:07.039 --> 00:46:09.119
provided locally. If the patient meets these

00:46:09.119 --> 00:46:12.179
criteria, the transfer procedure has to be executed

00:46:12.179 --> 00:46:15.940
flawlessly. What are the key logistical and documentation

00:46:15.940 --> 00:46:18.159
imperatives to ensure the receiving center can

00:46:18.159 --> 00:46:21.519
continue optimal care? Documentation is absolutely

00:46:21.519 --> 00:46:23.960
paramount. The sins of the transferring facility

00:46:23.960 --> 00:46:26.699
often surface in the receiving facility's resuscitation

00:46:26.699 --> 00:46:29.380
bay. The transfer must be coordinated with the

00:46:29.380 --> 00:46:31.679
receiving burn center physician, not just the

00:46:31.679 --> 00:46:34.639
charge nurse. A comprehensive burn or trauma

00:46:34.639 --> 00:46:37.280
flow sheet must accompany the patient. What needs

00:46:37.280 --> 00:46:39.760
to be on that flow sheet? It's required to detail

00:46:39.760 --> 00:46:42.539
all baseline test results, sequential vital signs,

00:46:43.059 --> 00:46:44.980
every single milliliter of fluid administered,

00:46:45.400 --> 00:46:48.019
and the corresponding urinary output hour by

00:46:48.019 --> 00:46:50.659
hour. That flow sheet is the blueprint for resuscitation.

00:46:50.880 --> 00:46:53.659
It is. Without it, the receiving team has no

00:46:53.659 --> 00:46:56.380
idea if the patient is over or under resuscitated,

00:46:56.699 --> 00:46:58.800
and they can't accurately adjust the fluid rate.

00:46:58.889 --> 00:47:02.369
A clear pictorial diagram of the burn area and

00:47:02.369 --> 00:47:05.329
estimated depth is also essential. An airway

00:47:05.329 --> 00:47:08.130
reassessment, again, is the constant pitfall,

00:47:08.210 --> 00:47:10.809
especially during transport. Yes. Reassess the

00:47:10.809 --> 00:47:13.469
airway frequently just before transfer. If the

00:47:13.469 --> 00:47:16.090
patient has inhalation risk factors or has received

00:47:16.090 --> 00:47:18.969
significant resuscitation fluid, the edema will

00:47:18.969 --> 00:47:21.730
continue to develop, potentially causing obstruction

00:47:21.730 --> 00:47:24.110
en route. If there is any question regarding

00:47:24.110 --> 00:47:26.289
airway stability and the transport time is long,

00:47:26.750 --> 00:47:29.449
proactive intubation before the transfer is mandatory

00:47:29.449 --> 00:47:31.750
and should be discussed with the receiving facility.

00:47:32.010 --> 00:47:34.429
And patient comfort. Yes. Finally, ensure the

00:47:34.429 --> 00:47:37.210
patient is comfortable. Provide adequate analgesia

00:47:37.210 --> 00:47:39.650
before dressing changes or manipulation, and

00:47:39.650 --> 00:47:41.690
use non -adherent burn sheets to protect the

00:47:41.690 --> 00:47:43.809
integrity of the wounds during the move. This

00:47:43.809 --> 00:47:46.210
deep dive has really crystallized the complexity

00:47:46.210 --> 00:47:48.590
of acute thermal and cold injury management.

00:47:49.269 --> 00:47:52.289
If we had to isolate the most high -yield clinical

00:47:52.289 --> 00:47:55.230
skill set from this entire discussion, it's arguably

00:47:55.230 --> 00:47:57.889
that predictive capacity knowing when intervention

00:47:57.889 --> 00:48:00.550
is required before the patient is overtly symptomatic.

00:48:00.780 --> 00:48:03.800
That is the core takeaway. If you master early

00:48:03.800 --> 00:48:06.000
airway assessment, specifically knowing those

00:48:06.000 --> 00:48:09.239
ABLS intubation criteria, anticipating edema,

00:48:09.699 --> 00:48:12.159
and recognizing the failure of the pulse oximeter,

00:48:12.300 --> 00:48:14.719
and you combine that with the precise application

00:48:14.719 --> 00:48:17.480
and hourly titration of the fluid resuscitation

00:48:17.480 --> 00:48:20.300
formula, you have managed the vast majority of

00:48:20.300 --> 00:48:22.480
life -threatening events in the first 24 hours.

00:48:22.880 --> 00:48:25.800
Your job is defined by vigilance. The ultimate

00:48:25.800 --> 00:48:27.599
lesson, it seems, connects the science back to

00:48:27.599 --> 00:48:30.440
the patient. The unique continuous inflammatory

00:48:30.440 --> 00:48:33.380
pathophysiology of a burn means that aggressive

00:48:33.380 --> 00:48:35.679
nursing care is essentially this constant vigilant

00:48:35.679 --> 00:48:37.900
effort to balance fluid loss against dangerous

00:48:37.900 --> 00:48:41.159
edema. It's an ongoing negotiation with the body's

00:48:41.159 --> 00:48:43.869
systemic response. and something to ponder as

00:48:43.869 --> 00:48:46.170
you connect the pathophysiology to the human

00:48:46.170 --> 00:48:49.150
element. We established that the final demarcation

00:48:49.150 --> 00:48:52.389
between viable and non -viable tissue in frostbite

00:48:52.389 --> 00:48:55.650
can take weeks or even months. So how does this

00:48:55.650 --> 00:48:58.190
protracted assessment period fundamentally change

00:48:58.190 --> 00:49:00.210
the psychological support and the expectation

00:49:00.210 --> 00:49:01.849
management required when you're caring for a

00:49:01.849 --> 00:49:04.570
frostbite patient compared to the rapid, acute,

00:49:04.710 --> 00:49:06.869
and often decisive interventions required for

00:49:06.869 --> 00:49:09.230
a critical thermal burn patient in those first

00:49:09.230 --> 00:49:11.849
24 hours? That's a powerful thought on the intersection

00:49:11.849 --> 00:49:14.289
of trauma care and long -term recovery. We hope

00:49:14.289 --> 00:49:17.090
you feel more informed, more prepared, and more

00:49:17.090 --> 00:49:19.130
confident in handling these critical scenarios.

00:49:19.489 --> 00:49:20.150
We'll see you next time.