Chapter 12: Respiratory Disorders in Children

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Welcome back to the Deep Dive.

Today we are, we're shifting gears into something that is honestly a little high stakes.

Oh, definitely.

But it's absolutely essential for anyone going into pediatric health care.

We are taking a pretty dense stack of medical information, specifically chapter 12 from Davis Advantage for pediatric nursing.

And we're going to turn it into something you can actually use.

Right.

It really is high stakes.

We're doing a sort of last minute lecture style deep dive today.

So this is specifically designed for nursing students or, you know, anyone who just needs a crash course in pediatric respiratory care.

Yeah.

It's basically the survival guide for respiratory disorders.

Exactly.

And look, I know when you see a chapter title like respiratory disorders, it sounds, it sounds pretty standard and we all breathe, right?

Yeah.

It seems basic, air goes in, air goes out.

But the second you apply that to a child, the rules just, they change completely.

Completely.

And if there's one thing we really want you to take away from this, the core mission of this chapter, which is safety and assessment, because as we're going to see, kids are not just small adults.

Right.

Their anatomy is fundamentally different in ways that make respiratory issues much more dangerous, much faster.

So to kick this off, I want to pose a fundamental question that I think gets to the heart of why this chapter is so intimidating for new nurses.

Why can't we just treat a kid with a cough the same way we treat a grownup?

Why is the urgency dial turned up to 11?

Well, it comes down to a tiny terrifying bit of math.

It is the difference between four millimeters and 20 millimeters.

Okay, let's unpack that immediately.

Four millimeters.

Yeah.

So that is the approximate diameter of a newborn's airway.

To visualize that, think about the size of a standard drinking straw.

Wow.

That is all they have to work with.

Now compare that to an adult's airway, which is about 20 millimeters.

Which is more like a garden hose.

Exactly like a garden hose.

So we're starting with a much smaller pipe.

That already sounds risky just on its own.

It does.

But here is where it gets really interesting and dangerous.

The text highlights a crucial formula regarding swelling.

If you have just one millimeter of swelling or edema or inflammation in that airway,

just one.

In an adult, that one millimeter barely registers.

It reduces their airway diameter by about 20%.

They might feel a little stuffy, maybe sound a bit nasal.

They take a decongestant and go to work.

Right.

But in a newborn with that drinking straw, in a newborn, same one millimeter of swelling reduces their airway diameter by 50%.

50%.

You've lost half your airway instantly.

The resistance to airflow increases exponentially.

And that is why a quote unquote little cold in an infant is a respiratory emergency.

The margin for error is almost zero.

That is a staggering statistic.

50 % gone with just a tiny bit of swelling.

That really sets the stage for why we're going to be so obsessive about assessment today.

So the plan is to translate this dense textbook chapter into a usable guide.

We're going to move linearly through the chapter from anatomy to specific diseases, emphasizing safety and assessment at every step.

Let's start with the geography.

Upper versus lower airway.

Okay.

So broadly speaking, the upper airway is your intake system.

It's the roadmap.

You've got the nasopharynx and oropharynx and the text notes.

These are connected to the ears by the eustachian tubes, which we'll definitely come back to.

Oh yeah.

We have to, because it explains so much about childhood illness.

Then you have the pharynx and the larynx.

The larynx is basically the dividing line and it's covered by the epiglottis.

Everything below the trachea is the lower airway.

So the bronchioles and finally the alveoli where the actual gas exchange magic happens.

And the text makes a specific point about visualizing the lungs themselves.

We have the left lung and the right lung, but they aren't identical twins.

No, they aren't.

They're siblings, but they look different.

The left lung has two lobes just to make room for the heart and the right has three.

But here is a critical anatomical detail for anyone who works with kids.

It's the branching of the bronchi.

The right bronchus is steeper and wider than the left.

Steeper like a slide.

Exactly like a slide.

It enters the lung at a much more vertical angle.

Okay.

Why does that matter?

Because kids put things in their mouths constantly.

If a toddler inhales a peanut or a toy part or a coin, gravity and anatomy are going to guide that object right down into the right bronchus.

It's the path of least resistance.

That is a great clinical pearl.

So if a parent brings a child in saying, I think he swallowed a Lego and you're listening to lung sounds.

You are almost always looking at the right side first.

That's where the trouble usually settles.

It's just physics.

Okay.

Let's go deeper into that child versus adult checklist because the source material really emphasizes that this is crucial for exams and clinical practice.

We talked about the airway What else makes a pediatric patient essentially a different species when it comes to breathing?

Let's talk about the nose.

The text states that newborns are obligatory nose breathers until about four weeks of age.

Obligatory nose breathers.

That sounds intense.

What does that mean practically?

It means they do not have the reflex to open their mouths to breathe if their nose is plugged.

They just haven't developed that neural coordination yet.

We take it for granted.

If you hold your nose, your mouth pops open.

A newborn doesn't do that.

So a stuffy nose isn't just an annoyance like it is for us.

It's a breathing emergency.

Precisely.

If a newborn has mucus plugging their nose,

they effectively can't breathe.

They will struggle.

They will panic and their oxygen levels will drop.

That's why suctioning is a life -saving intervention in this age group, not just a comfort measure.

You have to keep that nasal passage clear, especially before feeding or sleeping.

And what about the structures themselves like the larynx and the trachea?

The text describes the child's larynx as being easily stimulated to spasm.

And the cartilage surrounding the trachea is more flexible.

It's softer.

We call it floppy.

Floppy airway.

Is that where the positioning comes in?

Yes.

Because the airway is so floppy, if a child's head is not positioned properly, if it's flexed too far forward, chin to chest, it can actually compress the airway.

You can literally kink off their breathing just by having their head in a bad position.

It's like bending a soft garden hose.

That is frightening.

It really highlights how fragile they are.

And looking at the physiology, the text mentions the metabolic rate.

Kids are high -performance engines.

Their metabolic rate is significantly higher than in adults because they are constantly growing.

A higher metabolic rate means a higher oxygen demand.

Infants use four to eight liters of oxygen a minute compared to adults who use three to four.

Wow.

So they are running through oxygen twice as fast relative to their size.

Right.

And here is the kicker.

They have fewer reserves.

Let's talk about alveoli, little air sacs where oxygen gets into the blood.

An adult has about 300 million alveoli.

And a newborn.

About 25 million at birth.

That is a massive difference.

Less than 10 percent.

It is.

It means they have significantly less surface area for gas exchange.

So you combine high oxygen demand with low surface area.

And what do you get?

If a child stops breathing,

they develop hypoxia, low oxygen.

Much faster than an adult.

They run out of fuel almost immediately.

One last thing on anatomy before we move to assessment.

The belly breathers concept.

I see this term a lot in the notes.

Yeah.

So until about age six,

a child's intercostal muscles, muscles between the ribs, aren't fully developed.

They can't really lift the chest wall effectively to expand the lungs.

So they rely almost entirely on the diaphragm.

So when they breathe, you actually see the stomach move.

Yes.

That is completely normal.

The diaphragm contracts.

It pushes down and the belly pops out.

You see a young child where the chest is heaving and the belly isn't doing the work.

That is actually a sign that something is wrong.

They should be belly breathing.

That is a perfect transition to section two, which is assessment and diagnostics.

Because knowing what is normal allows us to spot the abnormal.

The text outlines a general history asking about gestational age.

Because prematurity matters family history of things like asthma or CF and environmental triggers like smokers in the home.

But let's focus on the inspection part.

The work of breathing.

Work of breathing or W .O .B.

is probably the most important assessment skill you can learn.

You need to be able to look at a child across the room and know if they are in trouble without even touching them.

We look for attractions.

Describe that for the listener who might not be at figure 12 right now.

The text has a visual of a baby with retractions.

What does it actually look like in real life?

Well, ideally breathing should be effortless.

But when there is resistance, the child has to pull hard to get air in.

Imagine trying to suck a really thick milkshake through a tiny straw.

Your cheeks suck in right.

Yeah.

The exact same thing happens to the chest.

A retraction is the visible sinking of the skin and muscle between the bones of the chest.

And the text breaks down the locations.

Yes.

And the location tells you the severity of the distress.

Mild distress might show up as intercostal retraction.

So that's the skin sinking between the ribs.

But as the child works harder and the distress gets worse,

you see it elsewhere.

Substernal.

So below the breastbone.

And the scariest one is super sternal.

That's above the breastbone, right?

Right at the base of the neck.

Yes.

If you see the soft tissue sucking in right at the throat,

with every breath that child is using every single accessory muscle they have, that is severe respiratory distress.

And there are other visual signs mentioned.

Head bobbing is one.

It sounds innocent, almost rhythmic.

It's not innocent at all.

It's a sign of impending respiratory failure.

It means the child is so exhausted they're using their neck muscles, specifically the sternocleidomastoid muscles, to literally yank their rib cage up to get a breath.

Every time they breathe in, the head bobs down or forward.

It signifies utter exhaustion.

And seesaw respirations.

That's when the chest and abdomen move in opposite directions.

The chest goes up.

The belly goes in.

It is highly inefficient and a clear sign that the diaphragm is failing.

Now here's a point from the text that honestly gave me chills.

The quiet chest.

Ah yes.

The silent chest.

This is a classic trap for new nurses.

Imagine you have a child with asthma or severe bronchiolitis.

They're wheezing loudly.

They're struggling.

You can hear it from the hallway.

Then suddenly the wheezing stops.

The chest goes quiet.

And the instinct is to think, oh good, the wheezing stopped.

They must be better.

Exactly.

You think the breathing treatment worked.

But you have to look at the child.

If they still look distressed, if they're pale, retracting, sweating, but the sound has stopped, it is an absolute medical emergency.

Why would the sound stop if they aren't better?

Because sound requires air movement.

Wheezing is the sound of air squeezing through a tight tube.

If the sound stops, it means the airway is so completely tight that no air is moving at all.

They aren't wheezing because they aren't breathing.

A quiet chest in a distressed patient is ominous.

It means imminent respiratory arrest.

That is incredibly important to remember.

Quiet does not always mean good.

And just to touch on cultural competence here, the text specifically notes that when you're assessing for things like cyanosis, that bluish tint from lack of oxygen in children with darker skin tones, you can't just look at the skin.

You have to look at the mucous membranes, the gums, the inside of the lips, the nail beds.

Absolutely vital assessment point.

You have to know where to look.

Let's talk about chronic signs really quickly.

The text mentions clubbing of the fingers.

Right.

So if a child has chronic hypoxia,

a long -term lack of oxygen, like you'd see in cystic fibrosis or certain congenital heart defects,

their body actually changes structurally over time.

The tips of the fingers enlarge and the nail bed rounds out.

We look for a loss of the normal 160 degree angle of the nail bed.

It's a physical sign the body has been fighting for oxygen for a long time.

Okay.

Let's move to diagnostic tests.

We have all this technology x -rays blood work, but the text seems to have a real love -hate relationship with arterial blood gases or ABGs.

Yeah.

Mostly hate when it comes to kids.

Look, an ABG gives you perfect data.

It tells you exactly what the pH, the CO2, and the oxygen levels are in the arterial blood.

It's incredibly useful data, but obtaining an ABG involves sticking a needle deep into an artery.

It is incredibly painful.

And what happens when a child is in severe pain?

They scream, they cry, they fight, they hyperventilate.

And what does hyperventilating do?

It blows off CO2.

It literally changes your blood gas values in real time.

So the act of doing the test can actually ruin the results of the test because the child is so upset.

The expert advice in the text is to avoid ABGs unless absolutely critical because it causes so much anxiety and pain.

Instead, we rely heavily on pulse oximetry.

The text calls it the fifth vital sign.

We do, but the text adds a very important safety tip here.

Move the sensor.

An infant's skin is thin and fragile.

The little light sensor emits heat and causes pressure.

You need to move it regularly, usually every four to eight hours to prevent burns or pressure injuries on those tiny fingers or toes.

And table 12 to one goes into oxygen delivery systems.

It compares the nasal cannula to the non -rebreather mask.

Right.

And the big takeaway from that table for a non -rebreather mask, which delivers the highest concentration of oxygen short of intubation, is that the reservoir bag must be inflated before you put it on the child's face.

If the bag is flat, they'll just be suffocating in the mask.

Good to note.

And for cystic fibrosis, there is a very specific test mentioned.

The sweat chloride test.

It is the gold standard for CF.

We basically stimulate a amount of chloride salt basically in that sweat.

If it's high, it strongly points to cystic fibrosis.

We'll get deep into CF later.

Finally, for diagnostics, there's radiology, x -rays versus CT versus MRI.

The short version is we use x -rays a lot, but we worry about radiation exposure in growing bodies.

CT scans give great detail but have even more radiation.

MRIs have zero radiation but require the child to hold perfectly still for a long time in a loud tube, which usually means they need sedation.

And sedating a child with respiratory issues is always a risk.

All right, we have the anatomy.

We have the assessment tools.

Now let's get into the specific disorders, starting with section three, upper airway infectious disorders.

And the most common one has to be the ear infection, otitis media.

It is ubiquitous.

Almost every kid gets one.

And we can connect this right back to the anatomy we discussed.

Remember those eustachian tubes?

The ones connecting the ear to the back of the throat.

Exactly.

In adults, those tubes are angled downward, which helps them drain fluid from the middle ear into the throat, where you just swallow it without noticing.

In children, they're shorter, they are wider, and crucially, they are more horizontal.

So the fluid doesn't drain.

It stagnates, just sips there.

And stagnant fluid is a perfect breeding ground for bacteria.

That is why kids get ear infections so much more often than adults.

Assessment seems pretty straightforward based on the text.

Tugging at ears, rolling the head side to side, crying fever.

But the treatment has shifted, hasn't it?

The text talks about watchful waiting.

Yes.

We used to prescribe antibiotics for every red ear we saw.

Now to prevent antibiotic resistance, if the child is stable over six months old and the symptoms aren't too severe,

we might practice watchful waiting for 48 to 72 hours.

Many of these are viral or they just resolve on their own.

We really want to avoid overuse of antibiotics.

And there is a practical prevention tip here involving feeding.

No bottle propping.

If you lay a baby flat on their back and prop a bottle in their mouth, the milk can actually reflux right up those short horizontal tubes into the middle ear, feed them upright.

It's a simple change that makes a huge difference in preventing infections.

Next up, pharyngitis and tonsillitis.

Basically sore throats.

Most are viral.

But the one we always fear and test for is strep group, a beta hemolytic streptococcus.

Because if left untreated, strep can affect the heart causing rheumatic fever and the kidneys causing glomerulonephritis.

But let's focus on the tonsils.

We grade them on a scale.

Plus one or plus two is considered normal.

Plus three is enlarged.

Plus four is what we call kissing tonsils.

Kissing tonsils.

Yeah, they're so swollen, they're literally touching each other in the midline of the throat, completely blocking the airway.

That is a significant issue.

If they get taken out of tonsillectomy, there is a major critical component alert in the text about post -op hemorrhage.

This is a classic exam question and a real life scare.

How do you know if a child is bleeding down their throat after surgery?

You might expect to see blood coming out of the mouth, but usually they just swallow it.

So the absolute number one sign of hemorrhage post -tonsillectomy is frequent swallowing.

Even if they are sleeping?

Especially then.

If you see a kid sleeping or resting who just keeps gulping and swallowing over and over, you need to check their throat immediately with a light.

They could be hemorrhaging.

And what about the diet post -op?

The text has strict rules.

No red fluids.

You need to know if they vomit, whether it's blood or just red fruit punch.

Don't confuse the two.

No straws because the suction pressure in the mouth can literally pop the fresh scab off the surgical site.

And no citrus juice because it burns terrible.

Okay, let's move to influenza.

The flu.

Prevention is key here.

Vaccination starts at six months of age.

And there is a big myth buster in the text regarding egg allergies.

It used to be that if a kid was allergic to eggs, they couldn't get the flu shot because the vaccine is grown in eggs.

The text confirms that is no longer the case.

Egg -allergic children can safely receive the standard trivalent or quadrivalent vaccine.

That's really good to know.

It clears up a lot of confusion.

Now we are entering the real danger zone.

Epiglottitis.

The text basically calls this the do not touch disorder.

This is a massive medical emergency.

The epiglottis, that little flap of cartilage that covers the trachea when you swallow, gets infected usually by H flu and swells up like a balloon.

It can completely block the airway in a matter of hours.

The onset is very sudden.

The child has a high fever and they look absolutely terrified.

What are the classic signs?

The text lists the four Ds.

Right.

Drooling because they physically can't swallow their own saliva.

Dysphagia, which is difficulty swallowing.

Dysphonia, meaning difficulty speaking, their voice sounds very thick or muffled.

And distressed inspiratory air movement.

And they sit in a very specific way to try to breathe.

The tripod position.

They are sitting up, leaning forward, resting their weight on their hands with their jaw thrust out.

They are physically trying to pull their airway open.

And why is it called the do not touch disorder?

Because if you decide to play hero and put a tongue depressor in their mouth to take a look,

you can trigger a sudden severe laryngospasm.

The airway just clamps shut entirely and you have lost the patient.

You never ever inspect the throat unless you have an advanced anesthesia or ENT team standing right there with a track tray ready to intubate or cut an airway immediately.

So if you suspect it, you back off, keep them calm and call for help.

Keep the child calm.

Let them stay in their parent's lap.

Do not make them cry.

Crying increases the swelling and the oxygen demand.

And on an x -ray, this looks like a thumb.

The thumb, yes.

The swollen epiglottis looks exactly like a large thumb print on the lateral neck x -ray.

Okay.

Contrasting that with croup or laryngeal tracheobronchitis.

That's a mouthful.

Table 12 -2 specifically compares these two.

Right.

Croup is usually viral.

It affects the larynx and the trachea.

The swelling there causes that classic seal -like barking cough.

It literally sounds like a seal barking at the zoo.

And it's almost always worse at night.

And the x -ray sign here is different.

Yes.

It's called the steeple sign.

The subglottic trachea narrows symmetrically at the top so it looks like a church steeple on a front -facing x -ray.

The treatment for croup is interesting because a lot of it can actually be done at home.

Yes.

Pool mist is the old school remedy, but it works.

Standing in front of an open freezer, breathing in the cold air or taking the kid out into the cool night air can constrict the blood vessels and shrink the swelling.

If they come to the hospital, we use racemic epinephrine, which is a nebulized breathing treatment of adrenaline to shrink the swelling fast.

But you have to watch out for the rebound effect.

What's that?

Well, the medicine wears off in a couple of hours and sometimes the swelling comes back even worse than before.

So we observe them for several hours after giving it.

And we also use steroids like dexamethasone to get the long -term inflammation down.

All right.

Let's shift to upper airway non -infectious disorders.

These are more structural things.

Tracheoesophageal fistula or T -E.

This is a congenital defect.

When the baby is developing in the womb, the esophagus and the crachea, the food pipe and the windpipe don't separate correctly.

There's a hole connecting them or one ends in a blind pouch.

And the signs are the three C's?

Coughing, choking, and cyanosis, especially when feeding.

If a newborn turns blue and chokes violently every single time you feed them, you stop immediately.

It's likely T -HIF.

The milk is going straight into their lungs.

They need to be made NPO nothing by mouth kept with their head elevated and they will need surgical repair.

And laryngomalacia.

This is that floppy airway we mentioned earlier.

The tissue above the vocal cords is overly soft and falls into the airway when the baby breathes in.

It causes stridor, which is a high -pitched crowing sound on inspiration.

It usually shows up in the first two weeks of life.

It sounds very scary to parents, but usually the baby is pink, gaining weight, and happy.

Symptoms just get a bit worse when they feed or cry.

And the prognosis for that?

Very good.

They typically just outgrow it by age 2 as the cartilage hardens and matures.

Moving down the respiratory tract.

Section 5, lower airway infectious disorders.

We have to talk about RSV and bronchiolitis.

This feels like the absolute bane of every pediatric unit in the winter.

It truly is.

Respiratory syncytial virus, or RSV, causes bronchiolitis.

The best way to describe the pathophysiology here is mucus.

Mucus everywhere.

The virus attacks the epithelial cells lining the tiny bronchioles.

Those cells die, they burst, and they create massive amounts of cellular debris and thick mucus.

So the small airways just get totally plugged up?

Completely plugged.

And since infants have those tiny drinking straw airways to begin with,

assessment shows copious, clear nasal secretions, severe wheezing, and rapid breathing, or tachypnea.

They're working so hard to breathe they can't eat.

So what do we do for them?

Antibiotics don't work on viruses.

No antibiotics.

And honestly, bronchodilators like albuterol don't usually work well either because it's a mucus plugging problem, not just a bronchospasm problem.

The primary treatment is suction.

We have to be the child's cough.

We use bulb syringes, or deep nasopharyngeal suction catheters with saline drops, to physically pull that mucus out so they can breathe and eat.

It's intense supportive care, hydration and suctioning over and over, plus contact and droplet precautions to stop it spreading.

Is there a vaccine for RSV?

There is a preventative medication called synages, or pallivizumab, but it's not a typical vaccine.

It's actually passive immunity pre -made antibodies.

And it is incredibly expensive.

We only give it to highly vulnerable populations like extreme premature infants or babies with severe congenital heart defects during RSV season.

It's a monthly injection.

Got it.

Let's touch on pneumonia briefly.

Viral versus bacterial.

Viral is more common, but bacterial is more severe.

Bacterial usually presents with a high fever or toxic appearance, and you'll see consolidation on the x -ray.

Basically a dense white patch where the infection is pooling in the lung lobes.

And pertussis.

Whipping cough.

This is making a comeback, unfortunately, due to under vaccination.

It's highly contagious.

The identifier is the paroxysmal coughing attacks.

Paroxysmal means they come in sudden, intense spasms.

The child coughs and coughs and coughs rapidly until they completely empty their lungs of air, and then they frantically gasp for air, making that high -pitched whoop sound.

The text calls it the 100 -day cough.

Yes, it lasts forever.

It is physically exhausting.

It can cause them to vomit or pop blood vessels in their eyes from the pressure.

The best prevention is the DTaP -P vaccine for kids and the Tdap booster for adults, especially pregnant women and anyone around newborns.

We treat the active infection with macrolide antibiotics, but mostly just to stop the spread to others.

And briefly tuberculosis or TB.

It's still around and very serious.

The key for nursing students here is safety precautions.

TB is airborne.

You need a negative pressure isolation room, and anyone entering must wear an N95 respirator mask.

The treatment is a long haul.

Several months of multiple antibiotics and medication adherence is a huge issue we have to manage with families.

Section 6, lower airway non -infectious disorders.

These are the chronic or structural conditions.

Let's start with respiratory distress syndrome, or RDS, in preemies.

This is fundamentally a surfactant issue.

Surfactant is a soapy lipid substance that coats the inside of the alveoli and reduces surface tension, keeping them from sticking together and collapsing when you exhale.

Premature infants simply haven't been in the womb long enough to make enough of it.

So every breath is a struggle to pop those air sacs back open.

Exactly.

It's like trying to blow up a brand new, very stiff balloon with every single breath.

They get exhausted quickly.

We treat it by actually squirting exogenous or artificial surfactant directly down their endotracheal breathing tube into the lungs.

It's amazing to watch their lung compliance improve almost instantly.

Now we need to spend some real time on cystic fibrosis, or CF.

The text goes into a lot of detail here.

CF is a major life -altering genetic disorder.

It's autosomal recessive, meaning you need to inherit a mutated gene from mom and a mutated gene from dad to have the disease.

If you only have one, you're just a carrier.

And biologically, what is going wrong?

It's a dysfunction of the exocrine glands caused by defect in the CFTR protein.

Basically, that messes up the transport of chloride and water across cell membranes.

As a result, the body creates incredibly thick, sticky, tenacious mucus,

not just in the lungs, but everywhere.

How do we diagnose it?

Newborn screening catches most cases now.

But historically, before routine screening, parents would notice a salty taste when they kiss their baby.

That's because the sweat glands are also affected, and they lose excessive salt in their sweat.

The sweat chloride test confirms it.

A level greater than 60 mEq per liter is diagnostic.

The management sounds intense.

The text talks about pulmonary toilet.

Yeah, that's the medical term for aggressive airway clearance.

These kids need chest physiotherapy every single day, multiple times a day, to literally shake that thick mucus loose so they can cough it up.

Many use something called the vest, which is a high -frequency chest compression device they wear that shakes their torso rapidly.

They also use specific nebulizers like Dorniz Alpha, which actually targets and thins the DNA in the mucus to make it less viscous.

It's a huge daily burden for the child and family.

And it's not just the lungs right, it severely affects the gut.

Huge GI impact.

That same thick mucus blocks the pancreatic ducts.

So the natural digestive enzymes your pancreas makes can't get into the small intestine.

These kids can eat and eat, but they will starve because they literally can't absorb the nutrients, especially fats.

So they need enzyme replacements.

With every single meal and every single snack, they have to take pancreatic enzyme capsules right before they eat.

And they need a high -calorie, high -protein diet because their constant work of breathing burns so many calories.

They also need specialized fat -soluble vitamins, A, D, E, and K, in a water -soluble form so they can actually absorb them.

That is a staggering amount for a family to manage on a daily basis.

Let's move to a very common chronic issue, asthma.

Asthma is defined by chronic inflammation plus hyperresponsiveness, leading to bronchoconstriction.

It's a reactive airway disease.

The smooth muscle around the airways spasms and clamps down while the inside gets swollen and secretes mucus.

Triggers are the key here.

Smoke, cold air, exercise, pet dander.

The text explicitly mentions cockroaches as a major allergen trigger in certain urban environments.

We use a peak flow meter to monitor it right?

Right.

It's a handheld device the child blows into to measure how fast they can push air out.

It uses a traffic light system.

Green means good control.

Yellow means caution.

Your airways are tightening.

Take your rescue meds.

Red means medical alert.

Get help immediately.

And the meds.

We have rescue and maintenance.

Rescue meds are your sabba's short -acting beta agonists like albuterol.

They relax the smooth muscle and open the airway right now during an attack.

But you shouldn't need them every day.

Maintenance meds are usually inhaled corticosteroids.

You take them daily to keep the baseline inflammation down over time.

And the text strongly emphasizes the use of a spacer.

Always use a spacer or an aero chamber with an inhaler.

If you just spray a pressurized inhaler into a kid's mouth, most of the medicine hits the back of the throat and gets swallowed into the stomach, doing nothing for the lungs.

The spacer holds the mist in a little chamber so the child can take slow deep breaths and pull the medicine down into the lungs where it actually belongs.

And importantly, always teach them to rinse their mouth out after using steroid inhalers to prevent oral candidiasis, which is thrush a fungal infection.

Okay, we're in the home stretch.

Section seven, other respiratory issues and safety.

Let's talk about foreign body aspiration.

We talked about the anatomy of the right bronchus, but what are the main culprits?

Hot dogs are a big one.

Grapes.

Latex balloons are actually terribly dangerous because they perfectly mold to block the airway.

Coins.

Basically, anything round and slippery is a killer.

It can wedge perfectly in that small airway.

If a child is choking, but they are coughing forcefully, do you intervene?

No.

If they can cough effectively and they can make sounds,

let them try to clear it themselves.

Your interventions might push it further down.

If they go silent, their cough becomes weak or they turn blue.

That's when you step in immediately with back blows or abdominal thrusts, depending on their age.

Let's talk about bronchopulmonary dysplasia or BTD.

This is often a sequela of Yes,

it's basically a chronic lung disease of the newborn.

Ironically, the very treatments we use to save premature babies, high levels of oxygen and mechanical ventilators can damage their fragile, underdeveloped lungs.

The pressure and oxygen cause inflammation,

the lungs get scarred, and the tissue actually remodels itself in a dysfunctional way.

They often need oxygen therapy for months or years.

And the specific nursing care for them mentions cluster care.

These babies stress easily and they have very little energy reserve.

Every time you touch them, turn them or examine them, they burn calories and oxygen.

So you don't go once to check a temp, then 10 minutes later to change a diaper, then 10 minutes later to feed.

You group all your tasks together, you cluster them, do it all at once gently, and then you leave them alone and let the baby rest, sleep and grow.

A hands -off approach is often best for healing.

Apnea and L -O -T -E or B -R -U -E, this is a heavy topic.

Apnea is defined as a pause in breathing lasting longer than 20 seconds.

That's abnormal and requires investigation.

But relate to that sudden infant death syndrome or SID's prevention is a massive public health push we have to educate parents on.

The alone on my back in a crib campaign.

Yes, the ABCs of safe sleep.

Alone, no bed sharing.

Always place them on their back to sleep, never their stomach.

Crib a firm mattress with a tight -fitted sheet.

No bumper pads, no fluffy blankets, no stuffed animals.

Keep the crib completely bare.

And the text notes that smoking in the home significantly increases the risk of SEs.

Which brings us to the final specific topic in the chapter, smoking and vaping.

The text is very clear and firm here.

E -cigarettes are not just harmless water vapor.

They contain toxic chemicals like formaldehyde acetone and high levels of nicotine.

They cause direct lung damage.

Things like popcorn lung or bronchiolitis obliterans.

And the marketing is extremely aggressive with flavors that specifically target youth.

It's a huge developing respiratory threat that pediatric nurses are dealing with more and more.

Wow.

So we have covered a massive amount of ground today.

All the way from the four millimeter airway of the newborn to the complex genetic daily management of cystic fibrosis.

We really have.

And it all connects back to that first principle we discussed.

Careful assessment.

Understanding that a child's anatomy puts them at a much higher risk much faster.

If you can spot the retractions early, if you can hear the dangerous silence in a quiet chest, if you can educate the parents on safety and proper medication use, you are doing your job well.

It's all about being vigilant because the window for intervention is just so much smaller in kids.

Exactly.

Respiratory failure is the number one cause of cardiac arrest in children.

They don't usually have primary heart attacks.

Their breathing stops first, then their heart stops.

If you save the airway, you save the child.

That is a really powerful place to wrap up the content.

But before we go, expert leave us with one final thought to chew on.

Something provocative based on all this material.

You know, reading through this chapter, I kept thinking about the environmental context of all this.

We talk about asthma triggers, viral spread and vaping.

It really highlights how pediatric respiratory health is basically a mirror of our environment.

Things like air quality housing conditions like cockroaches or mold, secondhand smoke, these aren't just medical issues.

They are social issues.

As nurses, we are treating the lungs at the bedside, but we also have to advocate for the air that fills them outside the hospital.

It really makes you think about our broader role in public health.

That's a vital perspective.

Something for everyone to think about as they head into clinicals.

Thanks for listening to this deep dive into pediatric respiratory disorders.

This has been the last minute lecture team.

Breathe easy, everyone.