Chapter 14: Nursing Management During Labor and Birth

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Imagine like a medical intervention that doesn't actually improve patient outcomes

and it actively increases the risk of major surgical interventions.

But it's legally mandated in almost every hospital in the country.

Yeah, it sounds completely backward.

Right.

But if you're heading into a labor and delivery unit, you are going to see it on like every single patient.

So welcome to the deep dive.

If you're listening to this right now, chances are you're a college nursing student staring down a massive maternal newborn exam.

Or gearing up for your clinicals.

Exactly.

You are in the right place.

Today, we're doing sort of a one -on -one tutoring approach to Chapter 14 of Essentials of Maternity, Newborn, and Women's Health Nursing.

And we're doing this by really tracking the physiological journey of the patient.

I mean, we aren't just going to rattle off a list of textbook definitions.

No, nobody wants that.

Right.

When you are on the floor, you don't care about page numbers.

You care about the patient right in front of you.

So our mission is to trace the normal anatomy and physiology of labor and then connect that directly to the assessment findings you'll actually see.

Which then links right to the safe evidence -based nursing interventions you need to do.

Because in nursing, memorizing what to do is basically useless if the alarm starts blaring and you don't understand the underlying mechanism of why it's happening.

Absolutely.

You have to know the why.

Okay.

Let's unpack this.

Starting with the exact moment your patient rolls through the doors in active labor.

Before you can even think about interventions, you have to establish a baseline, right?

You have to figure out exactly where the mother's body is in the labor process.

And physically, that begins with the vaginal examination.

Yeah, the vaginal exam.

When you perform that, you are evaluating three really critical metrics.

You've got cervical dilation, cervical effacement, and fetal station.

Right.

Dilation is the one everyone always hears about in movies.

Yes, exactly.

It's the physical widening of the cervical opening.

You assess it from zero centimeters, meaning it is completely tightly closed, all the way up to 10 centimeters.

Which means it's fully dilated.

Like the physical barrier for the baby is totally gone.

Right.

But the cervix isn't just, you know, a two -dimensional ring that opens.

It's a three -dimensional canal.

And that brings us to effacement.

Which is the thinning of that canal.

Exactly.

The text describes a cervix that is zero percent effaced as being about two centimeters long.

But as the uterus contracts, it actively pulls that cervical tissue up into the lower uterine segment.

So the cervix gets shorter and shorter.

And then when you feel a cervix that is 100 % effaced, it feels completely obliterated.

Literally paper thin.

Paper thin, yeah.

And once you know the state of the cervix, you have to find out where the baby is located in relation to the maternal pelvis.

That's the fetal station.

And we measure this using the maternal ischol spines as our landmark, right?

We do.

These are the blunted bony prominences right at the mid pelvis.

And that mid pelvis is the narrowest part of the journey for the baby.

So we designate those spines as zero station.

So if the baby's presenting part, which is usually the head, if it's still floating high up above those spines, we use negative numbers.

Yeah.

Like negative five.

And as the baby descends and actually engages in the breath canal, it moves past zero and into positive numbers all the way down to plus four, which means birth is imminent.

Exactly.

Now, while your fingers are performing that exam, you're also feeling for the amniotic sac.

If the membranes are still intact, you will feel this soft, tense bulge.

It's almost like a water balloon.

Oh, and it gets incredibly tight during a uterine contraction.

It does.

But if they've already ruptured, the mother probably reported a sudden, you know, uncontrollable gush of fluid down her legs.

But on the floor, we don't just write down, like patient says, her water broke and then walk away.

We have to verify it chemically.

Right.

Because vaginal fluid is naturally acidic, but amniotic fluid is alkaline.

So we use the nicotine test.

It's a pH sensitive swab.

If you touch the fluid and the swab turns a dark blue, that alkaline reaction confirms ruptured membranes.

But what if that test is somehow inconclusive?

Then you escalate to the Fern test.

You basically take a tiny swab of that vaginal fluid, smear it on a slide and look at under a microscope.

And because of the specific estrogen and salt content in amniotic fluid, when it dries, it crystallizes into this very distinct microscopic Fern leaf pattern.

It's so cool.

And if you see the Fern, the protective barrier around the baby is officially gone, which means the clock is ticking.

And we need to look at the primary power driving this whole process, which is the uterine contractions.

Yeah.

These are the wave -like motions of the muscle.

They start by building up tension, which is called the increment.

Then they reach their absolute peak intensity called the acme.

And then they slowly let down the decrement.

Right.

The decrement.

And the text has this fantastic tactile analogy for assessing how strong these contractions are when you place your hands on the mother's abdomen.

Oh, I love this one.

If you press on the thundus, the top of the uterus, during a contraction, a mild contraction feels a lot like your nose.

Like it has some shape, but it's pretty squishy.

Yeah.

Feel your nose right now.

That's mild.

And then a moderate contraction feels like your chin and a strong contraction feels as hard as your forehead.

That tactile assessment is so important because you are quite literally feeling the muscle work.

And speaking of using your hands on the abdomen, we really have to talk about Leopold's maneuvers.

Procedure 14 .1.

Yes.

It's a systematic four -step palpation technique.

In step one, you palpate the top of the uterus, the thundus.

If it feels soft and irregular, you are feeling the baby's buttocks.

If it feels hard, smooth, and perfectly round, you're feeling the head.

Then step two involves moving your hands down the sides of the mother's abdomen.

Right.

You're trying to locate the smooth hard curve of the fetal back, distinguishing it from the bumpy, irregular fetal arms and legs on the other side.

Exactly.

Step three requires you to grasp the lower uterine segment right above the symphysis pubis to confirm what presenting part is heading into the pelvis.

And finally, step four has you turn and face the mother's feet.

You slide your hands down to see if the fetal head is properly flexed and engaged in the pelvic inlet.

Now, the clinical priority here is screening for male presentation.

You're making sure the baby isn't transverse across the belly or coming out breech.

But for the nurse doing the minute -by -minute care, step two is actually the most critical.

Finding the back.

Finding that smooth fetal back gives you the perfect acoustic window.

That is the exact anatomical target where you need to place the ultrasound transducer to monitor the fetal heart rate.

So now that we've physically located the fetal back and strapped the monitor on, we are looking at how the baby is handling the intense stress of these contractions.

Every time that uterus reaches its acme, it temporarily squeezes off the blood supply.

Yeah, it's a huge stressor.

We have to evaluate the baby's tolerance.

First, we look at the amniotic fluid itself, assuming it has ruptured.

Physiologically, it should be clear.

If it is cloudy or foul smelling, you're looking at an ascending infection.

But if it is green, that means the baby has pass meconium, their first bowel movement, while still in the uterus.

And we have to understand the mechanism behind that green fluid.

A fetus doesn't just pass meconium randomly.

When a fetus experiences severe hypoxia, the lack of oxygen triggers a vagal response that relaxes the anal sphincter.

So green fluid is a major glaring red flag for fetal distress.

Wow.

Okay.

After noting the fluid, all our attention shifts to the fetal heart rate monitor.

A healthy baseline should be sitting between 110 and 160 beats per minute.

And we want to see variability, right, those jagged irregular fluctuations on the monitor and we want to see the accelerations.

What's fascinating here is why we want to see those jagged lines.

I mean, variability isn't just noise on the machine.

It represents a healthy, continuous tug of war between the sympathetic and parasympathetic branches of the baby's autonomic nervous system.

Oh, so if the line is perfectly flat, that means the central nervous system is depressed, which is incredibly dangerous.

But how we capture that heart rate brings us back to that massive paradox I mentioned at the start of the deep dive.

The tech lays this out so clearly.

There is intermittent auscultation where you listen periodically with a Doppler versus continuous electronic fetal monitoring or EFM where the mother is strapped to the machine for her entire labor.

The paradox is that the evidence in chapter 14 explicitly states that continuous EFM does not reduce the rates of cerebral palsy or perinatal death compared to intermittent auscultation.

Wait, really?

Doesn't help.

It doesn't.

However, it does significantly increase the rates of c -sections and operative vaginal births like forceps or vacuums,

often because providers misinterpret totally normal variations as distress.

Yet almost every hospital mandates continuous EFM.

It's heavily driven by hospital routine and the intense fear of medical litigation.

It's like a textbook example of defensive medicine.

It really is.

But regardless of the politics, if you're the nurse looking at that monitor, you have to interpret the decelerations.

This is a vital cause and effect concept for your exams.

Let's break down early decelerations versus late decelerations.

Early decelerations essentially mirror the contraction.

As the contraction builds, the heart rate dips and they recover together.

And the mechanism here is purely mechanical.

As the baby moves down the birth canal, the contraction physically compresses the fetal head.

That compression stimulates the vagus nerve which temporarily slows the heart rate.

So because it's just a pressure response, it's entirely normal.

Entirely normal.

You don't need to intervene.

You just document it.

But late decelerations are a totally different beast.

These are visually apparent drops in the heart rate that start after the contraction has already peaked.

And they take a long time to return to baseline.

The cause here is utero placental insufficiency.

Exactly.

Think of the blood vessels are squeezed and the placenta essentially holds its breath.

Right.

Now a healthy baby has enough oxygen reserves to tolerate that brief pause.

But if there is utero placental insufficiency, meaning the placenta is already compromised and not delivering enough blood, the baby's oxygen reserves deplete rapidly.

So the heart rate drops late because the baby is literally running out of oxygen after the squeeze.

Exactly.

This falls into a category three fetal heart rate pattern.

So what does this all mean for the nurse staring at the monitor?

I hear category three.

I hear the baby running out of oxygen.

We can't just stand there watching the stream.

Absolutely not.

A category three pattern requires immediate aggressive corrective measures to restore fetal oxygenation.

You immediately turn the mother onto her side to maximize blood flow to the uterus.

You administer supplemental oxygen.

You increase the five fluid rate to boost her circulating blood volume.

And most importantly, you do not just wait to see if it works.

No, you must notify the healthcare provider instantly.

You are looking at a potential systemic failure that might require an emergency surgical birth.

That is the high stakes reality of the nursing floor.

And once those contractions get that intense and the monitor is tracking everything, we have to address the intense physiological pain the mother is experiencing because the uterus is a muscle.

And during the acne of a contraction, it experiences temporary hypoxia or ischemia.

Right.

That muscle starvation, combined with the massive mechanical stretching of the cervix and perineum, causes severe pain.

The textbook divides the management of this pain into non -pharmacologic and pharmacologic approaches.

Non -pharmacologic methods, which are detailed in table 14 .2, are directed at working with the physiology.

Like having a doula.

Yes.

A prime example is continuous labor support, like a doula or a dedicated labor nurse.

The evidence shows that having continuous focused emotional and physical support actually reduces the rate of c -sections.

We also want to utilize ambulation and upright positions.

When a mother is upright, gravity literally directs the weight of the fetus downward against the cervix, which forces successive dilation.

Other methods include hydrotherapy in a tub, effleurage, which is a light rhythmic stroking of the abdomen that blocks pain signals from reaching the brain, and pattern -paced breathing to prevent hyperventilation and give the mother a sense of control.

But when non -pharmacologic methods aren't enough, we look at drug guide 14 .1 for systemic analgesia.

We're usually talking about opioids like morphine or fentanyl.

And the physiological catch here is that opioids are lipophilic.

They easily cross the placental barrier.

If you administer a heavy opioid too close to the time of birth, the baby will be born with that narcotic in their system.

Which leads to profound central nervous system and respiratory depression.

You'll have a floppy, unresponsive newborn.

Exactly.

So to help manage the side effects of these opioids,

nurses often co -administer adjunct drugs called aderactics, like promethazine, which drastically reduce nausea and lessen maternal anxiety.

And then, of course, we have the epidural.

The provider injects a local anesthetic into the epidural space in the lower spine.

The pain relief is incredible, but it triggers a massive side effect.

Oh yeah.

By blocking the sympathetic nervous system in that area, the epidural causes profound vasodilation.

The mother's blood vessels open wide, blood pools in her lower extremities, and she experiences a sudden, severe drop in blood pressure.

If we connect this to the bigger picture, you can really see the domino effect.

That maternal hypotension means there isn't enough pressure to push blood through the placenta.

And decreased placental perfusion means the baby isn't getting oxygen, which leads directly to those terrifying late decelerations we just discussed.

So the intervention is entirely mechanical.

Think about a heavy bowling ball sitting on a garden hose.

The heavy, gravid uterus presses down on the mother's inferior vena cava when she lies flat,

trapping all that pooled blood in her legs.

So to fix the blood pressure, you physically wedge a pillow under the woman's right hip.

That shifts the weight of the uterus off the vena cava, restoring blood returned to the heart, restoring her blood pressure, and ultimately restoring oxygen to the baby.

It all comes back to cause and effect.

Now that we've covered the assessments and the pain management tools, we can walk through how you apply them sequentially across the four stages of a patient's labor.

The first stage of labor encompasses all of the cervical dilation, from zero all the way to 10 centimeters.

It starts with the admission assessment.

And right away, the book highlights the cultural assessment in box 14 .2.

Yeah, and this isn't just a paperwork formality.

You need to identify how the woman's culture influences her expression of pain, who is permitted to be in the room, and her physical modesty requirements.

Right.

If you don't understand her cultural framework, your care plan 14 .1 for managing her anxiety and acute pain will basically completely fail.

During this first stage, you're checking vital signs based on strict monitoring guidelines from table 14 .3.

Normally, you check her temperature every four hours.

But think back to our nitrazine and Fern tests.

If her membranes have ruptured, that sterile protective barrier is gone.

The vagina is full of flora, and now there is an open pathway to the uterus.

Because of that massive risk for ascending infection, the moment her water breaks, you must increase temperature every two hours.

Once she finally reaches 10 centimeters dilated and is completely effaced, she enters the second stage of labor.

This lasts until the actual birth of the baby.

This is the pushing stage.

And the clinical evidence around pushing is a complete departure from what most people expect.

Wait, TV always shows doctors and nurses yelling push, push, push.

The second the woman gets to the hospital, everyone is counting to 10.

The mother is holding her breath.

Her face is turning purple.

I know, but the text says that is entirely wrong.

It's premature closed glottis directed pushing, and it is incredibly harmful.

Harmful.

Yeah, when a mother takes a deep breath and bears down forcefully while holding her breath, the Valsalva maneuver, it massively decreases her cardiac output.

That means less blood to the placenta, which causes a rapid decline in the fetal pH, leading to acidosis.

So what's the alternative?

Current evidence -based practice demands delayed spontaneous pushing.

You wait until the fetus has descended far enough that the woman feels an irresistible involuntary urge to bear down, and you encourage her to push in short bursts with an open glottis, literally exhaling or grunting through the push.

Wow, totally different.

And as the baby crowns and scratches the tissue, you have to be prepared to manage perineal lacerations.

You need to know the anatomy of these tears for your exams.

Absolutely.

A first degree laceration is superficial.

It extends just through the skin.

A second degree laceration goes deeper, tearing through the perineal muscles of the perineal body.

A third degree laceration is much more severe, continuing entirely through the anal sphincter.

And a fourth degree laceration is a worst case scenario, tearing all the way through the anterior rectal wall.

Providers sometimes cut an episiotomy, either midline or medial lateral, to make room.

But evidence actually prefers nurses use warm compresses and perineal massage to stretch the tissue naturally.

Finally, the baby's head emerges.

And the very first thing the provider or the nurse does is suction the newborn's mouth first and then the nose.

M before N, mouth before nose.

Why?

Because newborns are obligate nose breathers.

Their anatomy heavily favors breathing through their nose.

If you stick a suction bulb up their nose first, the stimulation will cause them to gasp.

And if they gasp while their mouth is still full of amniotic fluid or meconium, they will aspirate that fluid straight into their lungs.

Suction the mouth first, eliminate the hazard, then clear the nose.

The baby is born, which initiates the third state of labor.

This is the separation and expulsion of the placenta.

During this stage, the mother's body undergoes a massive hormonal crash.

Her adrenaline drops and her endorphins plummet.

This sudden hormonal shift causes a glitch in her thermoregulation and she will likely begin to shiver violently.

So your immediate nursing intervention is to provide warm blankets to comfort her while her hormones stabilize.

And while you're keeping her warm, you're watching the perineum for the three classic signs that the placenta has detached from the uterine wall.

Right.

You will feel a firmly contracting uterus.

You'll see a sudden gush of dark blood from the vaginal opening.

And you will notice a visible lengthening of the umbilical cord as the placenta drops into the lower segment.

Once the placenta is expelled, we move into the fourth stage of labor, which is the immediate recovery period lasting one to four hours post -birth.

You are taking vital signs every 15 minutes because the risk for hemorrhage is at its absolute highest right now.

And the most important tool you have to prevent that hemorrhage is the fundal assessment.

When you palpate the mother's abdomen, the fundus should feel like a rock hard grapefruit.

It should be exactly in the midline of the abdomen and located below the level of the umbilicus.

If it feels soft or boggy, it means the muscle fibers aren't clamping down on the open blood vessels where the placenta detached.

You must immediately massage the fundus with your hands until it physically firms up.

But you also have to assess the position of the fundus.

If it is firm, but you notice it's displaced to the right side of the midline, you should instantly suspect a full bladder.

Here's where it gets really interesting, because I want you to visualize this mechanically.

Imagine trying to close your fist tightly around a water balloon.

You can't do it.

The balloon is in the way.

Exactly.

A full bladder acts exactly like that water balloon.

It physically pushes the uterus up into the side.

Because the uterus is being stretched around the bladder, the uterine muscle fibers physically cannot clamp down to stop the bleeding.

So a simple full bladder leads directly to massive postpartum hemorrhage.

Your intervention is to assist the mother to the bathroom or catheterize her immediately so the uterus can finally contract.

It is the ultimate proof of what we establish at the beginning.

Understanding normal anatomy and physiology dictates every single nursing assessment, and every assessment dictates your intervention.

If you understand the mechanics of the bladder, you can stop a hemorrhage.

If you understand the vagus nerve, you can confidently document an early deceleration.

And that completes our comprehensive journey through Chapter 14.

We started with the physical assessments of the cervix, broke down the heart rate monitor,

explored the physiology of pain management, and applied it all sequentially through the four intense stages of labor.

Before we wrap up, we want to leave you with a broader question to mull over as you prepare to step onto the clinical floor.

The chapter explicitly states that continuous electronic fetal monitoring doesn't improve outcomes and actually increases surgical risks.

Yet it is almost universally mandated in hospitals to prevent litigation.

Right.

So as a future nurse, how will you navigate the tension between practicing evidence -based physiologic care and surviving in a medical legal system that prioritizes defensive medicine?

It's a heavy question, and it is the reality of the profession you are entering.

Thank you so much for joining us on this deep dive.

We hope this review makes the physiology click into place.

From the last -minute lecture team, good luck on your exams.

You are going to make an incredible nurse.