Fundamentals of Nursing · Pain Assessment
Pain Management
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In 30 seconds
Pain management is the plan of care that reduces pain and — just as importantly — restores function. The goal is not simply to make the number on the pain scale small; it is to help the person breathe deeply, move, sleep, and participate in recovery. Management is multimodal: it combines medication with non-drug strategies, matched to the individual's pain type, preferences, and goals.
Modern pain management rests on two pillars. The pharmacologic pillar uses analgesics — non-opioids, opioids, and adjuvants (helper medications) — chosen by pain severity and type; the non-pharmacologic pillar uses physical and cognitive-behavioral strategies such as positioning, heat and cold, distraction, and relaxation. They work best together, often allowing lower medication doses and fewer side effects. Because nurses administer most pain medication and spend the most time with people in pain, the nurse is the linchpin of the system.
⚠️ Educational content only. This guide deliberately contains no drug doses, no administration timeframes, and no treatment recommendations. Doses, routes, schedules, and monitoring intervals come from the prescriber and facility policy. Scope of practice for PCA, epidural, and other advanced pain modalities varies by state and facility.
Why this matters
- Unrelieved pain harms. Beyond suffering, it causes shallow breathing, immobility, sleep loss, and delayed healing — so managing pain is a safety intervention, not a comfort extra.
- Pain is expected after surgery and many procedures; managing it well is a core nursing competency.
- Opioid A strong analgesic acting on opioid receptors Full entry → safety is a public health issue. Nurses must distinguish Tolerance Needing more drug for the same effect over time Full entry →, dependence, and Addiction Compulsive use despite harm to treat pain appropriately without fueling misuse — or under-treatment born of fear.
The college version
Core Concepts
Goals of pain management
A good pain plan aims for: (1) comfort — pain reduced to a level the person finds acceptable; (2) function — the person can cough, move, and sleep; (3) safety — side effects and complications are prevented or caught early; and (4) respect — the person's goals and preferences shape it. The target is the person's stated acceptable level, not a universal number.
Pharmacologic approaches: categories, not doses
Analgesics fall into three broad families (selection and dosing are prescriber decisions):
- Non-opioid analgesics: Acetaminophen and nonsteroidal anti-inflammatory drugs (NSAIDs). Used for mild to moderate pain; NSAIDs also reduce inflammation. Each has safety considerations (liver, kidneys, stomach, bleeding risk) that guide who can take them.
- Opioids: The strongest class, used for moderate to severe pain — acute post-operative pain, severe injury, and some cancer pain. They act on opioid receptors in the brain and spinal cord and are effective when used correctly, but they carry side effects including constipation, nausea, sedation, and respiratory depression — the most dangerous.
- Adjuvant (co-analgesic) medications: Drugs developed mainly for other purposes that help specific pain types — for example, certain antidepressants and antiseizure medications used for nerve (neuropathic) pain.
Routes matter: oral (preferred when possible), intravenous (rapid onset for acute pain), and specialized delivery such as Patient-controlled analgesia (PCA) A pump that lets the person self-dose within programmed safety limits Full entry → — a pump the person self-doses within programmed safety limits — or epidural and transdermal routes for particular situations. Multimodal analgesia Combining drug classes and non-drug strategies Full entry → — combining drug classes plus non-drug strategies — is the modern standard: it improves relief and can reduce opioid doses and side effects.
Non-pharmacologic approaches
- Physical strategies: positioning, heat and cold therapy, massage, early mobilization, and transcutaneous electrical nerve stimulation (TENS) where available.
- Cognitive-behavioral strategies: distraction, music, guided imagery, relaxation, and reducing catastrophic thinking — they change the brain's interpretation of pain, the "volume knobs" from Factors Affecting Pain.
- Integrative approaches (acupuncture, acupressure, and similar therapies) are used in some settings based on availability, evidence, and patient preference.
Non-drug strategies do not replace ordered medication; they complement it, and most cost nothing.
Opioid safety: tolerance, dependence, addiction
Three words are constantly confused — and the confusion causes real harm:
- Tolerance: A normal physiologic response — over time, the same dose produces less effect, so a higher dose is needed for the same relief. It is not addiction.
- Physical dependence Withdrawal symptoms if the drug is stopped abruptly Full entry →: A normal physiologic response — if the drug is stopped abruptly, withdrawal occurs. It is not addiction, and it is why opioids are tapered rather than stopped suddenly.
- Addiction: A behavioral disease — compulsive use despite harm, craving, and loss of control. Taking opioids as prescribed for pain is not addiction.
Fear of addiction must never be a reason to withhold pain relief, and a person in unrelieved pain who asks frequently for medication may be under-treated, not drug-seeking. Responsible use includes: monitoring sedation and respiratory status per policy; knowing the facility's response plan for respiratory depression (including naloxone); preventing and managing constipation (fluids, fiber, mobility, plus prescribed bowel regimens); and teaching safe storage, use, and disposal.
The nurse's role in pain management
The nursing process applies directly: assess (baseline, pain type, goals), administer (ordered medications using the rights of medication administration), evaluate (reassess with the same scale), teach, document, and advocate (report unrelieved pain). Advanced modalities like PCA and epidurals require additional training and institutional credentialing.
Common Confusions
| Do Not Confuse | With | Difference |
|---|---|---|
| Tolerance | Addiction | Tolerance is physiologic — the same dose gives less effect over time. It is normal and not addiction |
| Physical dependence | Addiction | Dependence means withdrawal if the drug stops abruptly; it is physiologic. Addiction is compulsive use despite harm |
| A person in pain who asks often for medication | Drug-seeking | Frequent requests may mean under-treated pain; assess and treat first, and investigate concerns separately |
| Non-pharmacologic strategies | Optional extras | They are part of the multimodal plan and can reduce medication doses and side effects |
Eli explains
The same idea, in plain words
Explain it like I’m 10
Pain relief works like a sports team: the painkiller is the star player, but it plays better when the rest of the team helps — an ice pack, a comfy position, or a favorite song — and the nurse checks how much it hurts before and after each play. "Needing more medicine than before" is not the same as "being hooked on medicine," and knowing the difference keeps people safe.
Worked example
Mr. Delgado is one day post-hip-replacement surgery. His plan: a scheduled non-opioid, an opioid via PCA for breakthrough pain, ice, repositioning every two hours, and guided breathing exercises learned before surgery. At 0900 the nurse assesses: "Same 0–10 scale as yesterday — where is your pain now?" He says 6/10 at rest, 9/10 when the physical therapist moves his leg. The nurse checks his sedation level and respiratory status (per facility policy), confirms he can use the PCA button correctly, helps him ice the incision and reposition, and coaches him through slow breathing. At reassessment he reports 4/10 at rest and can participate in therapy.
Later the nurse notes frequent PCA use and reports the pattern to the provider — advocating for a plan adjustment rather than judging him — and confirms the ordered bowel regimen. Every piece of the plan, drug and non-drug, works together.
Key takeaways
- Goals are comfort + function + safety — the target is the person's stated acceptable level, not a universal number.
- Multimodal analgesia is the modern standard: combining drug classes with non-drug strategies improves relief and can reduce opioid doses and side effects.
- Three analgesic families: non-opioids, opioids, and adjuvants — selection and dosing are prescriber decisions; this guide lists no doses.
- Tolerance and physical dependence are physiologic and are NOT addiction. Fear of addiction must never block pain relief.
- Frequent requests for medication often mean under-treated pain, not drug-seeking — assess and treat first.
- Monitor sedation and respiratory status per policy, know the facility's response plan for respiratory depression, and prevent/treat constipation as ordered; PCA and epidural management require additional training and credentialing.
Check yourself
6 review questions from the chapter. Try each one, then open the answer.
What are the three broad categories of analgesic medications, and what role does each play?
Show answer
Non-opioids (acetaminophen, NSAIDs) for mild–moderate pain and inflammation; opioids for moderate–severe pain; adjuvants (e.g., certain antidepressants and antiseizure drugs) for specific pain types like neuropathic pain. Selection and dosing are prescriber decisions.
Why is multimodal analgesia preferred over a single medication alone?
Show answer
Combining drug classes and non-drug strategies improves relief and can reduce opioid doses and side effects — the pieces work together.
Explain the difference between tolerance, physical dependence, and addiction.
Show answer
Tolerance is needing more drug for the same effect (physiologic); physical dependence is experiencing withdrawal if the drug is stopped abruptly (physiologic); addiction is compulsive use despite harm (a behavioral disease). Only addiction is a substance-use disorder.
List three non-pharmacologic pain management strategies.
Show answer
Positioning, heat/cold therapy, massage, early mobilization, TENS, distraction, music, guided imagery, relaxation/deep breathing (any three).
What should a nurse do after administering a pain medication?
Show answer
Reassess with the same pain scale within the appropriate timeframe per facility policy, observe for side effects, document the score and response, and follow up on the comfort goal.
Why is "the patient asked for pain medication again" not, by itself, evidence of drug-seeking?
Show answer
Unrelieved pain commonly leads to frequent requests; the person may be under-treated. The nurse assesses and treats the pain, then investigates any concerns separately — never lets fear of misuse override pain relief.
Study tools & related lessonsKey vocabulary · Related
Key vocabulary
- Non-opioid analgesic
- Acetaminophen and NSAIDs
- Opioid
- A strong analgesic acting on opioid receptors
- Multimodal analgesia
- Combining drug classes and non-drug strategies
- Patient-controlled analgesia (PCA)
- A pump that lets the person self-dose within programmed safety limits
- Tolerance
- Needing more drug for the same effect over time
- Physical dependence
- Withdrawal symptoms if the drug is stopped abruptly
- Addiction
- Compulsive use despite harm
Sources & references
This lesson was adapted from the open educational references above; their licenses and attributions are preserved. See Copyright & Licensing.
Educational content only. It is not medical, legal or professional advice. Found an error? Tell us.