Chapter 52: The Child With a Neurologic Alteration

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Welcome back to the Deep Dive.

Today, we are shifting gears a bit and settling in for something we like to call the Last Minute Lecture.

And we know exactly who's listening right now.

You've got that thermo mug of probably lukewarm coffee.

You're staring at a stack of notes that just seem to be multiplying on their own.

And you've just had that sinking realization that pediatric neurology is not just adult neurology, but smaller.

It really, really isn't.

I'd argue it's one of the highest stakes games in the entire nursing curriculum.

The stakes feel incredibly high.

And I think it's because we're not just memorizing cranial nerves for a test.

I mean, but it's more than that.

It's so much more.

We're talking about the control center of a developing human being.

If something goes wrong here, especially in a brain that's literally still under construction,

the consequences, they're temporary.

No, they can define the rest of that child's life.

That's the reality of it.

And, you know, unlike an adult, a six month old can't look at you and say,

you have to be the detective.

You have to spot the really subtle signs, a change in the pitch of a cry,

a tiny movement of the eyes, maybe a slight bulge on their head before they become catastrophic signs.

So our mission today is safe practice.

We are diving deep into chapter 52 of maternal child nursing sixth edition, the big one, the child with a neurologic alteration.

And we're going to break this down piece by piece.

We'll start with the basic anatomy, which as it turns out is surprisingly different from adults.

And then we'll move all the way through the scary stuff.

All of it, increased intracranial pressure, structural defects like spina bifida, head trauma, and infections like meningitis.

And the goal isn't just to, you know, list a bunch of definitions for you to memorize.

No, the goal is to get to the why, to move you from just memorization to understanding.

Why do we measure head circumference so religiously?

Why does a high pitched cry make an experienced nurse literally run to the room?

Why do we care about a little tuft of hair on a baby's lower back?

Okay, let's do it.

Let's start at the very beginning.

Section one, the foundation.

The text highlights that the nervous system is one of the very first things to form in utero.

It seems like the body prioritizes the command center above almost everything else.

It absolutely does.

It starts incredibly early.

I mean, by the fourth week of gestation, the neural tube, which eventually becomes the brain and the spinal cord, it's already closed.

Four weeks.

That's barely a missed period for many women.

A lot of people don't even know they're pregnant yet.

Which brings us to a massive public health takeaway right out of the gate.

If a woman waits until she confirms a pregnancy to start thinking about prenatal nutrition,

specifically folic acid.

She might have missed the window.

She might have already missed the most critical window to prevent neural tube defects.

The architecture is laid down before most people even know construction has started.

Wow.

That's why we push folic acid for all women of childbearing age, not just those who are actively trying to conceive.

And it doesn't stop there.

The text talks about these massive surges in brain cell growth.

Right.

You get these proliferation periods.

There's one around 15 to 20 weeks gestation, and then another huge one that starts at 30 weeks gestation and goes all the way through the first year of life.

So the building isn't done at birth.

Not even close.

Yeah.

The scaffolding is up, but the finishing work is definitely ongoing.

Oh, far from done.

Just think about a newborn.

They're uncoordinated.

Their movements are jerky.

That's because the wiring isn't insulated yet.

Okay.

We call this myelinization.

Myelin is this fatty sheath that covers the nerves.

And you can think of it just like the plastic coating on an electrical wire.

So without it, the signal leaks or just moves slower.

It moves incredibly slowly and inefficiently.

At birth, the peripheral nerves, so the ones going to the arms and legs, they are not fully myelinated.

As that sheath develops over the first year, you literally watch the child gain control.

And that's what explains why motor skills develop in a specific direction.

Exactly.

It explains a lot.

I remember this from growth and development.

Yeah.

Cephalocautal and proximal distal.

That's it.

Cephalocautal means head to toe.

The nerves in the neck myelinate first so a baby can hold their head up before they can sit.

And sit before they can walk.

Right.

And proximal distal means center to outward.

They can wave their whole arm, that's gross, motorway, before they can pick up a tiny little cheerio with their fingers, which is fine motor.

That makes perfect sense.

It's not just about muscle strength.

It's the wires finally getting their insulation so the signal can arrive clearly and quickly.

Precisely.

And it also explains the primitive reflexes.

Things like the morostardal reflex or the grasp reflex.

Those are automatic sort of primitive responses from the lower brain.

As the higher brain centers develop and the nerves get myelinated, the voluntary nervous system comes online and it actively suppresses those reflexes.

Which is a key assessment point then.

If I'm seeing a moro reflex where the baby throws their arms back when they're startled in, say a one -year -old, that's a problem.

That is a huge red flag.

It suggests that the voluntary system hasn't taken over properly.

It could point to potential cerebral palsy or other neurologic delays.

Okay, now let's talk about the skull.

I think most people assume the skull is a helmet.

You know, hard, fused, protective.

But in infants, it's more like tectonic plates.

That's a great way to visualize it.

The plates are separated by sutures and fontanels, what everyone calls the soft spots.

The posterior fontanel on the back of the head, that closes pretty early, usually by two months.

But the anterior fontanel, the diamond -shaped one right on top, that stays open until 16 or even 18 months.

We seem obsessed with palpating these fontanels.

What's the tactical value of checking a soft spot?

It's your window into the brain's pressure and volume.

Because the skull isn't fused, it can expand.

If an adult's brain swells, the skull is rigid.

The pressure just shoots up instantly and it crushes the brain.

But an infant has this pop -off valve.

The fontanels can literally bulge outward to accommodate extra fluid or swelling.

So a bulging fontanel is a sign of increased pressure.

It's a classic sign, yes.

Although you have to assess it when they're calm, a screaming baby will have a bulging fontanel just from the exertion.

Okay, good point.

But if they're quiet and sitting up, and that spot is tense and bulging, that is very significant.

And on the flip side, if those plates use too early, that's a problem too, right?

Yes, that's a condition called craniosinostosis.

If the sutures close before the brain is done growing, the brain literally has nowhere to go.

It forces the head into these abnormal shapes, and it causes massive damage unless we go in surgically and basically re -break the bones to make room.

This connects directly to the growth charts.

I feel like I spent half my clinical day measuring head circumferences with that little paper tape.

And it is a vital sign.

You have to plot it.

One measurement tells you almost nothing.

You need the trend.

Right.

If the head circumference suddenly shoots up across two percentile lines, you aren't just looking at a big head.

You're potentially looking at hydrocephalus water on the brain.

If it flatlines, you might be dealing with microcephaly, where the brain has just stopped growing.

Wow.

Okay, before we move to the pathologies, one last anatomical quirk.

The blood -brain barrier.

In adults, this is like a fortress that keeps toxins out.

It is.

It keeps the bad stuff out.

But in infants, the fortress walls have gaps.

The barrier is much more permeable.

So it's a double -edged sword.

It really is.

It means antibiotics can get in easier to treat infections, which is good.

But it also means that toxins and certain drugs and viruses can cross into the brain much more readily than in adults.

So we have to be extra, extra careful with dosing and monitoring for systemic infections becoming brain infections.

Exactly.

Okay, so we have the foundation.

Uninsulated wires, shifting skull plates, and a leaky barrier.

Now let's talk about the monster in the closet.

Increased intracranial pressure, or ICP.

The text mentions the Monroe -Kelley doctrine.

That sounds incredibly academic.

Don't let the name scare you.

It's actually simple physics.

Just imagine the skull is a rigid box.

Inside that box, you only have three things occupying space.

Brain tissue.

It is most of it.

Right, about 80%.

Then you have blood, about 10%, and cerebrospinal fluid, or CSF, the other 10%.

The doctrine just says the total volume inside that box must remain constant.

It's a zero -sum game.

It is, ideally.

If you get a brain tumor, so more tissue, or you have a hemorrhage, more blood, something else has to leave to make room.

The body tries to compensate.

It'll drain some CSF down the spine or squeeze some blood out of the veins.

But there's a limit.

And once you run out of room.

The pressure spikes.

And not linearly, it spikes exponentially.

And that pressure kills brain cells by cutting off their blood supply.

You mentioned earlier that infants have that pop -off valve with the fontanels.

So I'm guessing they present differently than an older child whose skull is fused.

They do.

And this is where you have to be really sharp.

In an infant, the signs are subtle at first because the skull can stretch a bit.

You'll see that bulging fontanel we talked about.

You might see distended scalp veins.

They look like these angry little blue rivers running across the head.

That's because the blood can't drain back in against the pressure.

In the cry.

The text describes it as a neurocry.

What does that mean?

It is distinct.

It's not an I'm hungry cry or a change me cry.

It's high pitched.

It's shrill.

And it's almost irritating to the ear.

It's the kind of cry that makes the hair on the back of your neck stand up.

It indicates pain and central nervous system irritation.

What about the eyes?

Is there anything we should look for there?

Yes.

You look for the setting sun sign.

That sounds almost poetic, but I'm guessing it's not.

It's terrifying.

The pressure pushes on the cranial nerves that control eye movement.

And specifically, it prevents upward gaze.

Oh, they can't look up.

They can't.

The eyes get driven downward.

So when you look at the baby, you see the white part, the sclera above the iris.

It looks exactly like the sun setting over the lower eyelid.

That is a visual that sticks with you.

OK.

Now, what about the older kid, the 10 -year -old?

Their skull is a fused helmet.

They don't have that pop -off valve.

So for them, the pressure rises much faster.

Their classic triad of symptoms is headache, nausea, and vomiting.

But here's the clinical pearl.

You need to watch for vomiting specifically in the morning, or vomiting that isn't preceded by nausea.

It just happens.

Why the morning specifically?

It's about gravity.

When you sleep flat, the venous drainage from your brain is slower.

So everyone's ICP rises just a little bit overnight.

But if a child is already maxed out on pressure,

that little overnight bump is what tips them over the edge.

They wake up and they vomit, sometimes projectile.

OK.

So morning vomit, headache, maybe some double vision.

Now, let's say we miss those early signs.

The pressure keeps building.

What happens when the body just runs out of tricks?

That's when we enter the emergency phase.

This is where we see what's called Cushing's response.

It's the body's absolute last -ditch effort to keep blood flowing to the brain against that crushing pressure.

What does that look like on the monitor?

So think about it mechanically.

The pressure inside the head is now higher than the blood pressure, so blood can't get in.

The brain is starving.

It's starving.

So it sends a panic signal.

I need oxygen.

The heart responds by pumping harder and harder.

You see a massive spike in the systolic blood pressure.

It's trying to force the door open.

But then the heart rate does something weird.

It goes down.

It does.

Because the blood pressure is now so high systemically, the baroreceptors in the body freak out and say, whoa, slow down.

So the heart rate drops, bradycardia.

OK.

And at the same time, the pressure on the brain stem is messing up the respiratory center.

So breathing becomes irregular and erratic.

So that combination,

high blood pressure, low heart rate, and irregular breathing, that is Cushing's triad.

Yes.

And it is an extremely late and ominous sign.

It usually signals that herniation is imminent.

The brain is about to be squeezed through the bottom of the skull into the spinal canal.

Which is not survivable.

Essentially, no.

At this stage, you also see pupil changes fixed and dilated.

One blown pupil suggests a bleed on that side of the brain.

Two blown pupils usually means the brain stem itself is compromised.

The text also has these really stark diagrams of posturing, kids stiffening up in these specific shapes.

This is another reflex response.

These are reflex responses to pain when the brain is severely, severely damaged.

You absolutely need to know two types for your exams and for the bedside.

The first is decorticate.

How do we remember that one?

Think of the word core.

The arms are flexed in toward the core of the body, like they're making the letter C.

The legs are straight.

This implies damage to the cerebral cortex, the higher brain.

Okay, decorticate to the core.

Yeah.

And the other one?

Is decerebrate.

The arms are extended straight down by the sides, and the wrists are rotated outward in this very unnatural way.

It's called pronation.

The head is arched back.

That's worse.

Much worse.

It indicates the damage has gone deeper, all the way down to the brain stem.

To track all of this, we use the Glasgow Coma Scale, the GCS.

But the standard GCS asks, you know, are you oriented to time and place?

You can't ask a toddler that.

No, of course not.

So we use a pediatric modification.

For verbal response, for instance, a normal infant scores a five if they coo and babble.

If they have that irritable neuro cry we talked about, it's a four.

If they just moan to pain, it's a two.

But the math is the same.

The scoring.

The math is the same.

15 is perfect.

Three is the lowest possible score.

You get three points just for having a body.

And the rhyme you need to tattoo on your brain is less than eight, intubate.

Because at a GCS of eight, they can't protect their own airway.

Precisely.

They are considered to be in a coma.

Okay, let's put this into action.

We have a child with high ICP.

We're the nurse at the bedside.

What are we doing right now?

First thing, gravity is your friend.

Elevate the head of the bed to 30 or 45 degrees.

That helps the venous blood drain out of the skull.

And keep the head midline.

Do not let the neck flex or turn to the side.

Like unkinking a hose.

Exactly like unkinking a hose.

If the neck is twisted, you're blocking the jugular veins.

Blood can pump in, but it can't get out.

And the pressure just skyrockets.

So head straight.

Okay, what else?

Second,

manage the environment.

You'll see an order for low stimulation.

This isn't a suggestion, it's medical order.

Dim the lights.

Quiet the room.

Cluster your care.

Don't go in every 10 minutes to poke and prod them.

Right.

Do your vitals.

Give your meds.

And do your assessment all at once.

Then get out and let them rest.

Agitation spikes pressure.

And a big one.

Avoid suctioning unless you absolutely have to.

Why?

Suctioning makes some coughing gag, which acts like a Valsalva maneuver, and it shoots that ICP through the roof.

Okay, that's critical.

Let's move to section three.

Structural defects.

The big one here is spina bifida.

This brings us right back to that first month of pregnancy we were talking about.

Spina bifida is a neural tube defect.

The vertebrae just fail to fuse properly around the spinal cord.

The text breaks it down into three types.

Occulta, meningocelli, and myelomeningocelli.

Let's decode those.

Okay, let's start with spina bifida occulta.

Occulta means hidden.

The spinal cord and the meninges are actually where they should be, but the bone didn't close over them.

So how would you even know it's there?

Often, the only sign is a little dimple or a tuft of hair on the lower back, right over the defect.

It's a patch of hair.

It's a cutaneous marker.

It's a little flag for the bony defect underneath.

Usually these kids are fine, no neuromuscular deficits, but as a nurse, you see it, you document it, because it signals an abnormality in development.

Then we have the cystica types, and this is where there's a visible sac sticking out of the back.

Right.

If that sac contains only meninges and spinal fluid, but, and this is cheno nerves, it's called a meningocell.

These are less severe because the spinal cord itself is still safe inside the canal.

Okay.

But the most common and the most severe form is myelomeningocell.

This is the one we worry about the most.

By far.

Because the sac contains fluid, it contains the meninges, and it contains the spinal cord nerves themselves.

The nerves are literally outside the body, just encased in this really fragile bubble.

Which means for the child.

It means significant deficits below the level of that defect.

Paralysis, loss of sensation, and almost always bowel and bladder incontinence for life.

So if a baby is born with this, what is priority number one of the delivery room?

Protects the sac.

You have to.

If that sac ruptures, bacteria have a direct open highway into the central nervous system.

You get meningitis instantly.

Immediately.

So we position the baby prone on their belly with their hips slightly flexed to reduce tension on the sac.

Then we cover it with a sterile moist non -adherent dressing.

Why does that have to be moist?

To prevent it from drying out and cracking open.

We have to keep it pristine and intact until surgery can happen.

And there is a weirdly specific, but absolutely crucial warning in the text about latex.

Yes, the latex allergy connection.

I saw that.

It is huge.

Children with spina bifida have an incredibly high incidence of latex allergy.

Something like 68%.

Why is that?

It's likely due to the constant early exposure to latex products during multiple surgeries and all the daily catheterizations that start from day one of life.

Their immune system just gets sensitized to it.

So the rule for us is?

Assume they are allergic.

Period.

Use latex -free gloves, latex -free catheters, everything.

You do not want to trigger anaphylaxis in a child who is already this fragile.

Create a latex -safe environment immediately.

Now, spina bifida often comes with a plus one diagnosis, right?

Hydrocephalus.

They go hand in hand.

In many cases of spina bifida, the structural changes in the brain actually block the normal flow of CSF.

Sure, it's a plumbing problem.

It's a plumbing problem.

You're making fluid, but you can't drain it or absorb it properly.

So the ventricles in the brain just swell up like water balloons, compressing the brain tissue.

And since we can't stop the fluid from being made, we have to reroute it somehow.

We install a bypass.

It's called a ventricular peritoneal shunt or a VP shunt.

What does that look like?

It's a catheter that goes into the brain's ventricle, runs under the skin behind the ear.

You can often feel the little valve there down the neck, and then it dumps into the peritoneal cavity in the abdomen.

Where the body just reabsorbs the fluid.

Exactly.

The peritoneum is great at absorbing fluid, but you know, machinery breaks.

Shunt malfunction or infection are the two big lifelong risks.

And if the shunt kinks or breaks or gets clogged, the signs of increased ICP come roaring back.

So if a parent calls the clinic and says, he has a shunt and he's vomiting and he's acting really irritable, what do we tell them?

You tell them, bring him to the ER now.

That is a shunt failure until proven otherwise.

It's a true neurosurgical emergency.

Okay, moving on to section four, chronic and acquired disorders.

Let's talk about cerebral palsy or CP.

CP is the most common permanent physical disability in childhood.

The key part of the definition is that it is a disorder of movement and posture.

And this is critical.

It is non -progressive.

Non -progressive is the key word there.

So it doesn't get worse over time.

Correct.

The injury to the brain, which usually happens from a lack of oxygen or an infection before or during birth, that injury is done.

It's static.

It won't spread like a cancer or a degenerative disease.

However, the symptoms might look different as the child grows and tries to master new, more complex skills.

What does the nurse look for in an assessment?

What are the red flags?

The biggest one is delayed gross motor milestones.

A baby not rolling over at the right time, not sitting up.

You also see abnormal muscle tone.

Most commonly, it's spasticity, so tight, stiff muscles.

You might see what's called scissoring of the legs where the legs cross over each other when you pick the baby up because the adductor muscles are so tight.

And those primitive reflexes we talked about earlier, they persist way, way past when they should have disappeared.

And since we can't fix the underlying brain damage, the management is all about quality of life.

It's about maximizing potential.

It's a true team sport.

You have PT, OT, speech therapy.

For the spasticity, we use medications like baclofen, which is a muscle relaxant.

It can be given orally or even through a pump that's implanted and delivers it directly into the spine.

I've heard about Botox being used too.

Yes, Botox injections are used to relax specific, problematic muscles to help them walk better or use their hands more effectively.

Okay, from chronic to acute,

head injuries.

Kids fall.

They hit their heads.

We need to understand the mechanics of it to know what to look for.

Let's talk coupe and contrecoup.

Sounds French.

It is.

It just describes the physics of the hit.

Coupe is the blow.

So if a child is running and hits their forehead on the playground equipment, the brain smashes into the front of the skull.

That's the coupe injury.

But then the brain bounces back and hits the back of the skull.

That's the contrecoup.

So you can have bruising on both sides of the brain from just one single hit.

And the bleeding that can happen.

The text distinguishes between epidural and subdural hematomas.

I feel like these get mixed up constantly on exams.

Here's the key differentiator to remember.

Epidural is bleeding above the dura mater between the dura and the skull.

And it is usually an arterial bleed.

Arteries are high pressure.

Very high pressure.

So this happens fast.

The classic textbook presentation is this.

A child that's hit gets knocked out for a second, then wakes up and seems totally fine.

We call that the lucid interval.

It's a trap.

It's a total trap.

Because then they rapidly crash and can die if it's not treated.

That lucid interval gives this false sense of security while the artery is just pumping blood into the skull.

And subdural.

Subdural is below the dura.

And it is usually venous.

Veins are low pressure.

So it's more an ooze.

The symptoms might develop much slower over hours or even days.

Speaking of subdural hematomas, the text links this specifically to shaken baby syndrome or abusive head trauma.

This is a critical and very difficult part of our assessment.

When an infant is shaken, their brain rotates violently inside the skull.

This motion shears the tiny bridging veins.

Causing subdural bleeds.

Exactly.

It also causes retinal hemorrhages bleeding in the back of the eyes.

That combination of injuries is very specific.

So if we see retinal hemorrhages and subdural bleeds in an infant.

You must suspect abuse.

That specific pattern very rarely happens from accidental falls.

It's a heavy responsibility for us as nurses, but identifying it saves lives.

And quickly on concussions, the return to play protocol is everywhere now.

And for very good reason.

We've learned that the brain needs time to rest and heal.

If a child goes back to sports before their brain is fully recovered and takes another hit, even a small one, they can develop something called second impact syndrome.

Which is?

It's catastrophic.

It causes rapid, massive and often fatal brain swelling.

That's why the rules are so strict now.

You are not to play until you are completely symptom free at rest and with exertion.

We just don't mess around with second hits anymore.

Okay, let's slide down the CNS to the spinal cord, section five.

The rule of sum for spinal cord injury, or SCI, is simple.

The higher the injury, the more function you lose.

Right.

If you injure the high cervical spine, we're talking C1 to C4, you knock out the serenic nerve.

And the serenic nerve controls the diaphragm.

So the child cannot breathe on their own.

They will be ventilator dependent for life.

Lower injuries will spare breathing, but will affect arm and leg function to varying degrees.

There's a specific emergency mentioned here called autonomic dysreflexia.

It sounds complicated, but you've told me before, this is a nurse saves the day kind of moment.

It really is.

It occurs in injuries at or above the T6 level.

Basically, the body has a problem below the level of the injury.

Usually it's a full bladder or constipation, or even just a tight shoe or a wrinkled cheek.

Some kind of noxious stimulus.

Exactly.

The body tries to send a pain signal up to the brain, but it hits the roadblock at the spinal cord injury.

So the signal gets stuck.

It gets stuck, but the sympathetic nervous system below the injury hears the signal and it panics.

It triggers this massive vasoconstriction response.

The blood vessels all clamp down.

And blood pressure goes up.

It's skyrockets.

I'm talking stroke levels, like 240 over 120.

Oh, but the brain realizes the BP is that high.

Yes.

The baroreceptors in the neck feel this insane pressure.

So the brain tries to fix it by slowing the heart rate way down.

But it can't send a signal down past the injury to tell the blood vessels to open up.

So you see this bizarre mismatch, severe hypertension with bradycardia.

And how does the patient feel?

They'll complain of a pounding headache.

And they might be flushed and sweaty above the injury, where the vessels are trying to dilate,

but pale and cool below it, where they're all clamped down.

So you walk into the room, the BP is through the roof, the heart rate is low, the patient has a splitting headache.

What do you do?

First thing, sit them up immediately.

Gravity will help lower the blood pressure.

Then you find the trigger.

90 % of the time, it's a full bladder.

So check the catheter.

Check the Foley catheter.

Is it kinked?

Do they need to be catheterized?

If you can empty the bladder, the BP will drop almost instantly.

You just save them from a stroke.

Sit them up.

Check the bladder.

Simple but critical.

We should also mention immobilization briefly.

Right.

You might see a child in halo traction.

It looks like a metal ring that's literally screwed into the skull and attached to a vest.

It's to stabilize neck fractures.

What's our role as the nurse there?

Pin care.

You have to keep the sites where the screws enter the skin meticulously clean to prevent infection.

And safety, you always tape the specialized wrench to the front of the vest.

If that child arrests and you need to do CPR, you have to be able to get that vest off in a second.

Okay.

Moving to section six, seizures.

This is a huge topic.

A seizure is essentially an electrical storm in the brain.

It's just neurons firing uncontrollably.

The text classifies them.

Focal versus generalized.

Right.

Focal means the storm is happening in one specific area of the brain.

So just one hand might be twitching or they might smell burnt toast or see flashing lights.

That's called an aura.

And generalized.

Generalized means the storm involves the whole brain, both hemispheres at once.

This includes the classic tonic -clonic seizure, what people used to call grand mal with the shaking and loss of consciousness.

But it also includes absence seizures.

The daydreaming ones.

Exactly.

And these are so often missed, especially in school.

The kid just stares into space for maybe 10 seconds.

There's no shaking, no falling.

Teachers often think the child just have ADHD or isn't paying attention, but they're actually having a seizure.

Their brain is offline for those few seconds.

And what about febrile seizures?

Parents lose their minds over these.

Understandably.

Seeing your child have a seizure is terrifying.

It's caused by a rapid spike in temperature in a young child, usually between six months and five years of age.

But the key takeaway for us is.

They are almost always benign.

They look awful, but they don't cause brain damage, and they don't usually lead to lifelong epilepsy.

Our job is to treat the fever and provide a lot of reassurance to the parents.

But when does a seizure become an emergency?

When it's status epilepticus.

This is defined as a seizure that lasts for more than five minutes, or when a person has back -to -back seizures without waking up in between.

Why is that five -minute time limit so important?

Because after about five minutes, the brain is burning through oxygen and glucose faster than the body can supply it.

The neurons start to get damaged.

They start to die.

You have to stop it.

And how do we stop it?

ABCs first, always.

Airway, breathing, circulation, then medication.

Benzodiazepines are the first line of defense.

So IV adivon, which is lorazepam, or vivivalium, which is diazepam.

If you don't have an IV, you can give rectal diazepam.

Okay, let's bust a myth right now.

What do we put in the patient's mouth during a seizure?

Nothing.

Absolutely nothing.

Do not put a spoon, a wallet, or your fingers in their mouth.

They won't swallow their tongue.

They will not swallow their tongue.

That is physically impossible because of the frenulum holding it down.

But if you force something in their mouth, you will break their teeth, or you'll push the object into their airway, and you will choke them.

So what do we do?

Just turn them on their side?

Turn them to a side -lying position to prevent aspiration if they vomit.

Protect their head with a pillow or your lap.

Time the seizure.

And wait.

That's your job.

For long -term management, the text mentions the ketogenic diet.

Is this the same as the trendy weight loss keto diet?

It's the same principle, but much, much stricter.

It's very high fat, very low carb, and just adequate protein.

It forces the brain to run on ketones for energy instead of glucose.

And that helps with seizures.

For reasons we don't fully understand, this switch in fuel source stabilizes the neurons and can dramatically reduce seizures in some kids where medications haven't worked.

But it requires rigorous, strict compliance.

One cookie can throw them out of ketosis and trigger a seizure.

Okay, finally, section seven, infections.

Let's talk about meningitis.

This is an inflammation of the meninges, the protective lining around the brain and spinal cord.

And bacterial meningitis is the one that's a true killer.

It can go from looking like the flu to being fatal in less than 24 hours.

What are the telltale signs?

The big one is neutral rigidity, a stiff neck.

They literally cannot touch their chin to their chest because stretching those inflamed meninges is so painful.

And then there are two name signs you have to know.

Kernig and Brzezinski.

How do we differentiate those?

Kernig has a K, and it involves the knee.

You flex the child's leg at the hip to 90 degrees.

Then you try to straighten the knee.

If it causes pain or resistance, that's a positive Kernig sign.

Okay, and Brzezinski.

Brzezinski involves the brain and neck.

You lift their head while they are lying flat, and if their knees involuntarily pop up to their chest to relieve that stretch on the spinal meninges, that's a positive Brzezinski sign.

And what if you see a purple rash?

That is a five -alarm fire.

That's purpura.

It suggests meningococcemia.

You are in septic shock territory.

The bacteria are literally destroying the blood vessels.

This requires immediate isolation.

Droplet precautions.

Immediately, before you even confirm the diagnosis.

If you suspect meningitis, you isolate first, and you ask questions later.

Then comes the lumbar puncture, the LP, to get the spinal fluid.

The nurse has a really big role here.

A huge role.

The child has to be curled into a tight C shape, a fetal position to open up the spaces between the vertebrae for the needle to go in.

And they're scared.

They're terrified and in pain.

Your job is to hold them still in that position while simultaneously monitoring their breathing, because you're compressing their chest.

It's a very, very challenging procedure to assist with.

Okay, one last condition mentioned.

Guillain -Barré syndrome.

This is usually triggered by a viral infection or sometimes a vaccine reaction.

It's an autoimmune attack on the peripheral nerves.

The key feature you have to remember is ascending paralysis.

It starts in the feet and it moves up the body.

And why is that so dangerous?

Because eventually it reaches the diaphragm.

And if the diaphragm is paralyzed, the child stops breathing.

So your number one priority is monitoring their respiratory effort.

If you notice they're losing leg function, you need to be watching their breathing like a hawk.

And Ray syndrome.

This is why we tell parents never to give kids aspirin.

If a child has a viral illness like the flu or chicken pox and they take aspirin, it can trigger Ray syndrome.

That causes.

It causes acute liver failure and massive brain swelling or encephalopathy.

That's why it's Tylenol or Motrin only for fevers in kids.

No aspirin.

Wow.

Okay.

We have covered a massive amount of ground.

From the neural tube to the myelin sheath, from the pressure in the skull to the fluid in the spine.

It is a lot.

But let's try and boil it down to the big three takeaways for a nurse heading onto the floor.

Let's hear them.

One, assess.

But not just assess.

Know the age -appropriate signs.

A bulging fontanel in a baby is the exact same danger signal as a morning headache in a 10 -year -old.

Know your baseline and know what to look for at every age.

Protect the airway during seizures.

Protect the sac and spina bifida.

Protect the brain from secondary injury by managing oxygen levels and fever.

And protect yourself and everyone else with immediate isolation for suspected meningitis.

And three.

Act.

You have to recognize the emergencies.

Status epilepticus, autonomic dysreflexia, and a malfunctioning shunt are not wait -and -see moments.

They are do -something -right -now moments.

They require immediate intervention.

And I think I'd add a closing thought to that.

These diagnoses, cerebral palsy, spina bifida, epilepsy, they don't just affect the patient.

They change a family's life forever.

They do.

And as a nurse, you aren't just treating the child's neurologic status.

You are supporting the parents as they navigate a completely new normal.

You are teaching them how to be the experts on their own child.

That emotional support is just as critical as the neurological assessment.

Well said.

That wraps up our last -minute lecture on the child with a neurologic alteration.

Good luck with your studies.

You've got this.

Thanks for listening to the Deep Dive.

We'll see you next time.