Chapter 44: Pain Management in Nursing Practice

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Welcome to the Deep Dive.

We're here to really get into complex topics and hopefully make sense for you.

Today, it's all about pain management, a huge topic.

Absolutely.

We're not just looking at what pain is, but its impact, and more importantly, how you as future nurses can manage it effectively.

And we're grounding this discussion in a core text, Fundamentals of Nursing, 11th edition, by Potter, Perry, Stockard and Hall, a real cornerstone.

Right, so our mission today, for all you nursing students listening, is to really pull out the essential knowledge you need.

Yeah, for clinical judgment, for the NCLEX, and just for providing compassionate, smart care out there in the real world, no matter the setting.

Think of it as your go -to guide for one of the most common things you'll encounter.

Definitely, let's start with the situation.

Mrs.

Mays, 72 years old, ready for discharge, but she's got severe osteoarthritis.

Hips, knees, hands, it's rough.

And she tells her nurse, my pain is so severe, I have only been able to walk short distances and the pain wakes me up two or three times a night.

That just hits home, doesn't it?

It shows how pain can completely take over someone's life.

It really does.

And it highlights why this topic is so critical.

Pain is the number one reason people seek healthcare.

Yet it's often under -recognized, under -treated.

It's a real problem.

And as nurses, managing pain isn't just a nice thing to do, it's a legal and ethical responsibility.

Absolutely, which brings us to a foundational concept.

It sounds simple, but it's profound.

Pain is whatever the experiencing person says it is.

Say that again, that's key.

Pain is whatever the experiencing person says it is.

It means you start by believing the patient.

Your job isn't to find proof.

That trust is everything, isn't it?

The starting point for any effective care.

Exactly, and the formal definition from the IASP, the International Association for the Study of Pain, echoes this.

What's the definition?

They call it an unpleasant subjective sensory and emotional experience associated with, or resembling that associated with, actual or potential tissue damage.

Subjective really jumps out there.

You can't feel it for them.

Precisely.

You have to rely on their report.

And this isn't just about individuals.

Pain is a massive public health issue.

Like the Institute of Medicine report highlighted.

And the opioid crisis is tied into this too, right?

It is, it adds another layer of complexity.

We need effective relief, but also really careful, responsible use of medications.

So to manage pain well,

we need to understand how it works physiologically.

The journey of that pain signal.

Right, the process called nociception.

Understanding these four steps, transduction, transmission, perception, modulation,

helps make sense of it all.

Okay, let's walk through them.

Step one, transduction.

This is where it starts, at the injury site.

A harmful stimulus, maybe heat, pressure, or chemicals from inflammation, gets converted into an electrical signal.

By those specialized nerve endings, the nociceptors?

Exactly, and interesting point.

Inflammatory stuff like prostaglandins can actually lower the pain threshold right there.

Ah, making the area more sensitive?

Yep, so even a light touch might hurt more.

Okay, so the signal's generated.

What's next?

Step two.

Transmission.

That electrical impulse now travels.

It goes through the periphery, up the nerve fibers, into the spinal cord, and then heads toward the brain.

And there are different types of fibers carrying the message.

Two main types.

You've got the Fast A Delta fibers.

They carry that sharp, immediate, localized first pain, like when you step on something sharp.

Ow!

That immediate jolt.

Right, then you have the Slower C fibers.

They transmit the signals that feel more like a dull, aching, throbbing pain.

It's often poorly localized, kinda spread out.

The second pain that lingers.

Exactly, think sharp zap versus a persistent ache.

Got it, so the signal reaches the brain.

Step three.

Perception.

This happens in the cerebral cortex.

It's the point where you actually become consciously aware of the pain.

And it's not just recognizing the signal, is it?

No, your brain interprets it.

Quality, location, intensity.

It mixes in past experiences, your knowledge, even cultural factors.

It's a very personal interpretation.

So my ouch might be different from your ouch, even with the same stimulus.

Absolutely.

And finally, step four.

Modulation.

Modulation.

Like adjusting the volume.

Kind of.

It's your body's own built -in pain release system.

It releases natural pain killing chemicals, like endorphins.

Ah, the body's own morphine.

Essentially, yes.

These substances interfere with the pain transmission, especially in the spinal cord, trying to dampen the signal before it gets fully processed by the brain.

A natural dimmer switch.

But sometimes that system goes awry.

It can.

You might get central sensitization.

This leads to things like hyperalgesia, where a painful stimulus feels way worse than it should.

Or allodenia.

Right, where something normally painless, like the sheet brushing against your skin, causes significant pain.

Wow, and we should also mention that quick protective reflex, right?

Oh, definitely.

The reflex arc.

Pulling your hand from a hot stove before your brain even fully registers hot pain.

Pure survival mechanism.

Bypasses the conscious brain initially.

Okay, so that's the basic physiology.

But how we interpret and react is more complex, like the gate control theory.

Yeah, Melzack and Walsh theory from 65.

It helps explain why rubbing an injury can sometimes make it feel better.

How does that work?

The idea is that stimulating larger nerve fibers through touch or pressure, like rubbing,

can essentially close a gate in the spinal cord.

Locking the smaller pain signals from getting through.

That's the concepts, like overwhelming the pathway with non -painful input.

This later evolved into the neuromatrix theory, suggesting we each have a unique, genetically influenced brain pattern for pain.

Which really underscores how individual pain is.

Totally, and our bodies react physiologically too.

Low to moderate pain often triggers the sympathetic nervous system.

Fight or flight.

So increased heart rate, maybe sweating, pupils dilate.

But with severe or deep continuous pain, like visceral pain, the parasympathetic system might dominate.

So that could mean pallor, nausea, maybe even a drop in heart rate or blood pressure.

Correct.

And here's a critical point for practice.

Patients adapt, especially to chronic pain.

Meaning?

Meaning their vital signs might look completely normal, even when they're in significant pain.

You absolutely cannot rely solely on vital signs to assess pain intensity.

That's a huge takeaway.

Don't assume no pain just because the vitals are stable.

However, then you have behavioral responses.

How we show pain.

This is heavily influenced by culture, past experiences, coping styles.

Acute pain might look like grimacing, guarding the area.

Right, often more obvious.

Chronic pain's effects can be subtler, but profound impacting activity levels, concentration, mood, overall quality of life.

Like Mrs.

May is having trouble walking or sleeping.

Those are behavioral indicators.

Absolutely.

And it's crucial to be able to recognize pain, even if someone can't tell you verbally, maybe due to dementia or language issues.

And we also think about pain tolerance, right?

Yes, the amount of pain someone is willing to endure.

It varies hugely.

Someone with low tolerance isn't weak, that's just their experience.

Okay, so knowing these things helps us categorize pain, which then guides treatment.

The main split is acute versus chronic.

Right, acute pain is protective.

It signals injury or disease.

It usually has a clear cause, a relatively short duration, and resolves as the body heals.

Like post -surgical pain or pain from a sprain.

Exactly.

But here's the warning.

If acute pain isn't treated effectively, it can seriously slow down recovery.

And potentially lead to bigger problems.

Yes, it can even transition into chronic pain if it's severe and unrelieved.

The nervous system can actually change.

Okay, so what about chronic pain?

Chronic or persistent non -cancer pain is very different.

It serves no protective purpose.

It lasts longer than expected healing time, usually defined as three to six months, maybe longer.

And the cause might not even be obvious.

Often, yes.

It can essentially become a disease in its own right.

It deeply affects mood, thinking, sleep, ability to work, relationships.

Causes real suffering, depression, isolation, fatigue.

And sadly, patients dealing with this are sometimes unfairly labeled as drug seekers when they're just trying to manage debilitating pain.

That's a bias we absolutely need to be aware of and fight against.

Definitely.

There are other categories too, briefly.

Chronic episodic pain, like migraines that come and go.

Cancer pain.

Which can be acute, chronic, or both.

And often complex.

And idiopathic pain, where there's no identifiable physical cause, like complex regional pain syndrome.

So going back to Mrs.

Mays and her osteoarthritis.

That's a classic example of chronic non -cancer pain.

It's affecting her whole life, not just her joints.

Knowing that distinction is key to planning her care.

Which leads us perfectly into the factors that influence someone's pain experience.

And you mentioned one big one.

Our own biases as providers.

Yes.

It's easy to fall into traps, assuming pain isn't real, without objective signs, stereotyping patients.

And these biases directly lead to undertreatment.

They do.

Our ethical duty is to accept the patient's report, period.

Follow the guidelines.

Don't let personal beliefs interfere.

What about physiological factors?

Age seems like a big one.

Huge.

Let's clear up some myths.

Infants do feel pain.

They have the necessary neurological pathways developed before birth, and are often more sensitive.

How to show it.

Through behaviors crying, grimacing, changes in sleep or feeding, and physiological signs, like increased heart rate or altered breathing.

And older adults.

Pain is not a normal part of aging.

Their perception doesn't necessarily decrease, but they often under -report pain.

Why is that?

Fear of losing independence, maybe thinking it's just something they have to live with, not wanting to be a bother.

Plus, they're more sensitive to medication side effects due to body changes.

So assessment needs to be really thorough.

What else physiologically?

Fatigue.

Being tired definitely lowers your pain coping ability, and can make pain feel worse.

Makes sense.

Genes.

Yep.

Genetics play a role in pain sensitivity, threshold, tolerance,

even how you metabolize pain meds.

And of course, any underlying neurological issues affect perception.

Okay, shifting to social factors.

Past experiences matter.

A lot.

If you've had pain before that wasn't managed well, you'll likely be more anxious this time.

Good experiences build confidence.

So good pre -op teaching about pain control can really help.

Immensely.

And having supportive family or friends around makes a difference.

Reducing stress, especially for kids.

What about spiritual factors?

Spirituality can be a powerful coping resource for some.

Finding meaning, connecting to a higher power, it can genuinely impact physical and emotional well -being.

And psychological factors.

Attention seems intuitive.

Right.

Focus on the pain, it gets louder.

Distract yourself, it can diminish.

Simple, but effective.

Anxiety and fear.

They absolutely intensify pain perception.

And pain itself causes anxiety.

It's a vicious cycle.

But remember, treating the anxiety doesn't replace treating the pain.

Good point.

Anxiolytics aren't analgesics.

What about coping style?

People cope differently.

Some take an active role, ask lots of questions, internal locus of control.

Others prefer to follow directions more passively, external locus.

You adapt your teaching and support accordingly.

And finally, culture.

This seems huge.

It profoundly shapes how pain is expressed, what it means, how people cope.

Some cultures value stoicism, others are more expressive.

There can be language barriers, different beliefs about remedies.

Exactly.

Even biological variations in how different ethnic groups metabolize drugs.

So use culturally appropriate assessment tools, get professional interpreters when needed.

Be sensitive.

Bringing it back to Mrs.

Mays.

Her chronic pain clearly impacts her quality of life, her ability to do daily activities, her sleep, maybe her social life.

Definitely.

Chronic pain often comes with other symptoms too, fatigue, maybe some depression or nausea.

It all intertwines, which emphasizes why clinical judgment is paramount.

It's about putting all the pieces together, the science, the patient's story, your experience, the standards.

Precisely.

So let's talk about the nursing process, starting with assessment.

Seeing through the patient's eyes.

And remembering rule number one.

The patient's self -report is the gold standard.

Believe them, accept their pain exists.

That's your starting point.

Then work with them to set a tolerable pain level, not necessarily zero pain, right?

Right.

What level allows them to function?

To walk, to sleep, to participate in therapy?

What number on the scale would let you do X?

And consider health literacy.

Can they understand and describe their pain effectively?

Good point.

Assessment environment matters to private, unhurried, non -judgmental.

Observe nonverbal cues guarding grimacing.

What about patients who can't self -report?

Use validated behavioral scales, like the P and E for dementia.

Get input from family who know them well.

Use interpreters if needed.

Okay, for characteristics of pain, the mnemonic PQRSTU is helpful.

Walk us through it.

Sure.

P, palliative or provocative.

What makes it better?

What makes it worse?

Cue quality, use their words.

Aching, burning, sharp, throbbing, stabbing, electric -like.

Our region or location, where is it?

Point to it.

Is it superficial, deep, radiating somewhere else?

Severity.

Use a consistent scale.

Zero, 10 is common.

For kids, Wong Baker faces.

Explain how that works verbally.

Right, the faces scale shows faces from smiling, no hurt, to crying, worst hurt.

You ask the child to point to the face that shows how much they hurt right now.

The outer scale uses photos of children's faces along with the number scale.

Always use the same scale for that patient.

Consistency is key.

Tea timing.

When did it start?

How long does it last?

Is it constant, intermittent, worse at certain times?

And you, affective pain or understanding?

How does it impact you?

Your daily activities, sleep, appetite, work, mood, relationships.

So Nurse Matt assessing Mrs.

Mays found her pain was a four now, usually two, three.

An ache, hurts to touch.

And the you part, hard to walk, use hands, cook, dress, sleeps poorly.

See how that detailed picture emerges?

That drives the next step, analysis and nursing diagnosis.

You put the assessment data together.

Right, for Mrs.

Mays, Matt, identified arthritis pain related to stiffen joints as the priority, but also self -care deficit because she struggles with dressing and cooking and fatigue from poor sleep.

These diagnoses guide the plan.

Exactly, moving to planning and outcomes identification.

This is a team sport.

Involving the patient, family, doctors, pharmacists, PT, OT.

Absolutely, set realistic measurable goals with the patient,

what's achievable.

For Mrs.

Mays, maybe pain consistently at three or less, sleeping six hours straight.

Prioritize based on the type of pain too.

Yes,

acute pain often needs immediate focus to prevent worsening.

Chronic pain focus is often on improving function and quality of life, even if pain isn't zero.

Okay, implementation,

time to provide relief.

And it needs to be individualized.

What works for one person might not work for another.

Be patient, be flexible.

The overall recommendation is a multimodal approach.

Using different types of interventions together.

Yes, medications, non -drug therapies, maybe physical therapy, and simple things matter.

Listening, gentle touch, responding quickly.

Compassion is therapeutic.

Mineral guidelines.

Try different things.

Use what the patient prefers if possible.

Keep an open mind about therapies and never give up on trying to improve their comfort and function.

Health promotion is part of this too.

Education, managing sleep, addressing literacy issues.

Definitely, encouraging holistic health exercise, nutrition can make a difference.

Now let's lock non -pharmacological interventions.

They can be really effective.

Like relaxation,

deep breathing, guided imagery.

Yes, they help reduce tension, give the patient a sense of control.

Meditation, yoga, progressive muscle relaxation fall here too.

Distraction.

Great for short, intense pain, like during a procedure.

Music, TV, conversation,

games,

divert that attention.

Music therapy seems popular.

It is, it can reduce pain, stress, anxiety.

Let the patient choose music they like.

What about cutaneous stimulation?

Things you do to the skin.

Like massage,

can promote relaxation, may enhance medication effects.

Need to know proper techniques like effleurage, petrissage, can often be delegated to assisted personnel with training.

Cold and heat.

Cold, usually for acute injury, reduces inflammation, swelling.

Heat, often better for chronic pain, like muscle soreness, increases blood flow, promotes relaxation.

Big safety focus here, protect the skin from burns or injury.

Tegna and S units.

Transcutaneous electrical nerve stimulation.

Mild electrical current via electrodes on the skin.

Theory is it might block pain signals or stimulate endorphins, requires an order, effectiveness varies.

Any herbals mentioned.

Glucosamine and chondroitin for osteoarthritis, though evidence is mixed.

Crucially, always check for interactions with their prescribed meds, like warfarin.

And simple things.

Don't overlook them.

Smooth sheets, comfortable positioning, keeping dressings dry, preventing constipation.

These reduce sources of irritation and pain.

So when nurse Matt cared for Mrs.

Mays, he combined approaches.

Exactly.

Medication education, but also distraction ideas, emphasizing gentle movement, suggesting a warm bath for relaxation, even involving her husband with massage instruction.

That's multimodal care.

Okay, let's talk pharmacological therapies.

The main classes of analgesics.

Three main groups.

First, non -topioids.

Think acetaminophen Tylenol.

Effective, but watch the maximum daily dose, four grams, because of liver toxicity risk.

And the antidote for overdose is acetylcysteine.

Correct.

Acetaminophen is often combined with opioids too, like in Percocet.

Then there are NSAIDs, non -stroidal anti -inflammatory drugs.

Ibuprofen, aproxen.

Right.

Good for mild to moderate pain, especially inflammatory pain.

But they carry risks, GI bleeding, kidney problems, especially in older adults.

Use cautiously there.

Second class, opioids.

For moderate to severe pain.

Morphine, hydromorphone, fentanyl, oxycodone.

The goal is acceptable comfort.

Not necessarily zero pain.

Dosing is highly individualized.

Side effects are common though.

Nausea, vomiting, constipation, very common.

Need proactive management.

Drowsiness, mental clouding can occur.

The big safety concern is respiratory depression.

Slowed breathing.

Who's most at risk?

Patients new to opioids, opioid naive, those with sleep apnea on high doses, or taking other sedating meds like benzodiazepines.

And sedation comes before respiratory depression?

Usually, yes.

That's why monitoring sedation level is crucial.

If significant respiratory depression happens, naloxone and Narcan is the antidote.

How is naloxone given?

Typically 0 .4 milligrams diluted with saline.

Given slowly IV push, monitor very closely afterward, naloxone wears off faster than many opioids so the patient could become sedated again.

Repeat doses might be needed.

Important safety point.

What about timing of doses?

For ongoing pain.

Around the clock, ATC dosing is generally preferred over PRN, as needed, to maintain stable blood levels and prevent pain peaks and troughs.

And the concept of multimodal analgesia.

Using combinations of drugs that work differently.

Like an opioid plus a non -idupoid, you target pain from multiple angles.

The benefit.

You can often use lower doses of each drug, which means better pain control with potentially fewer side effects.

That's really the standard now.

You mentioned oral morphine having a first pass effect.

What's that?

When you take morphine orally, a significant portion is metabolized and inactivated by the liver before it even reaches the general circulation to have an effect.

So you need a higher oral dose than IV dose to get the same relief.

Exactly.

We use equal analgesic charts to help convert doses between different opioids and routes.

And for older adults, the mantra is start low, go slow.

Because of increased sensitivity and potential drug interactions.

Yes, polypharmacy is a big issue.

Given the opioid crisis, patient education on safe use is critical.

Using one prescriber and one pharmacy if possible.

Keeping meds locked up.

Never mixing with alcohol or sedatives.

Proper disposal of unused meds.

Third class of drugs, adjuvants.

Or co -analgesics.

These are drugs developed for other conditions but found to help with certain types of pain or boost the effect of analgesics.

Examples.

Tricyclic antidepressants or certain anticonvulsants for neuropathic pain.

Corticosteroids for inflammation.

But again, sedatives or anti -anxiety meds are not analgesics.

Okay, what about specialized delivery systems?

PCA.

A patient controlled analgesia.

A pump lets the patient self -administer small doses of IV opioid by pushing a button.

There are built -in safety limits, dose limits, lockout intervals to prevent overdose.

Benefits.

Gives patients control, often reduces anxiety, maintains steadier drug levels than PRN injections.

But the absolute critical rule, only the patient pushes the button.

No PCA by proxy by family members.

Never.

It's incredibly dangerous.

And programming the pump always requires two nurses to verify the settings.

What about topical or transdermal options?

Topical creams or patches, like lidocaine patches, work locally for nerve pain.

Usually wear them for 12 hours, then offer 12.

Transdermal patches, like fentanyl, deliver drug through the skin for systemic effect over a longer period, maybe 72 hours.

Fentanyl patches are very potent, right?

Extremely.

100 times more potent than morphine.

Requires careful handling, wear gloves, dispose properly.

Patients need education about avoiding heat sources near the patch, not cutting it.

Epidural analgesia.

That's administering medication, usually opioids and or local anesthetics, into the epidural space surrounding the spinal cord.

Used for post -op pain, labor pain, sometimes chronic cancer pain.

What are the key nursing responsibilities?

Preventing catheter displacement, maintaining function, strict aseptic technique to prevent infection, monitoring vital signs, sedation level, and respiratory status.

Very closely pulse ox, maybe capnography.

Also watching for side effects.

Yes, like hypotension, itching, pruritus, urinary retention.

Monitoring leg sensation and motor strength is important too.

And again, two nurse verification of pump settings.

What if none of this works for severe persistent pain?

There are invasive interventions like implantable pumps, delivering meds directly into the spinal fluid or spinal cord stimulators.

These usually require referral to a specialized pain center.

And always think about pre -medicating before painful procedures.

Absolutely.

Give pain meds time to work before things like dressing changes or physical therapy.

Coordinate timing.

How is managing cancer pain or chronic non -cancer pain different?

Often involves managing breakthrough cancer pain, BTCP.

Those flares of pain that occur despite baseline pain control can be predictable, incident pain, or spontaneous.

Treatment approach.

The WHO ladder principles still apply ATC dosing, tailoring meds, using adjuvants non -drug methods.

For BTCP, specific short acting opioids, sometimes transucosal fentanyl are used for rapid relief.

We touched on barriers earlier, can we recap?

Sure.

Patient barriers, fear of addiction, worries about side effects, not wanting to complain.

Provider barriers, poor assessment skills, fear of opioids, opiophobia, not enough time.

System barriers,

insurance limits, lack of pain protocols.

And it's crucial to understand the difference between physical dependence, addiction, and tolerance.

Yes, physical dependence is physiological.

You get withdrawal symptoms if the drug is stopped abruptly,

expected with long -term opioid use.

Addiction is behavioral impaired control, compulsive use,

continued use despite harm.

It's a brain disease.

And drug tolerance is when you need higher doses over time to get the same effect.

Also, expected with long -term use, these are not the same thing.

So don't automatically label someone asking for pain relief as an addict or a drug seeker.

Absolutely not.

Treat everyone with dignity.

Sometimes pain contracts are used for chronic opioid therapy to outline expectations for safe use.

Okay, finally, evaluation.

How do we know if our plan worked?

Ask the patient.

They're the best judge.

Also, evaluate functional outcomes.

Can they do more?

Is their sleep better?

Did they meet the goals they helped set?

And timing of reassessment matters.

Definitely.

Check back after meds have had time to work about an hour for oral, 15, 30 minutes for IV push.

Ask those side effects then too.

What if the goals aren't met?

Don't give up.

Try a different non -drug approach.

Talk to the provider about adjusting the dose or trying a different medication.

Ask the patient what has worked for them in the past.

And communicate clearly.

Essential.

Accurate documentation, detailed handoff reports, current pain score.

When last assessed, patient's acceptable level ensures continuity of care.

So evaluating Mrs.

Mays, Matt found her pain improved to a two or three with the meds and stretching.

Great, but sleep was still poor.

Right, so the evaluation led to new suggestions.

Consistent sleep routine, exercise earlier, warm bath.

She was receptive.

It's an ongoing cycle.

Assess, intervene, evaluate, adjust.

Which really brings us full circle.

That comprehensive look at pain management from physiology to multimodal interventions and truly holistic care, it's so central to nursing.

It really is.

Pain is invisible, subjective, deeply personal.

So the question for you listeners is, how can you become even more attuned to that silent language of suffering?

How will understanding these fundamentals transform the way you approach patient care?

Something to think about.

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

Your dedication to learning is what makes this community great.

Keep questioning, keep learning.

And keep diving deep.

Until next time.