6.4 Pain & Comfort Management

Assessing Pain: The Client's Report Comes First

The guiding rule is that pain is whatever the client says it is — self-report is the single most reliable indicator, and the nurse must not dismiss it based on appearance or vital signs. A structured assessment uses PQRSTU: Provoking/palliating factors, Quality (sharp, dull, burning), Region/radiation, Severity (a 0-10 numeric rating scale or a Wong-Baker faces scale for children), Timing/duration, and Understanding/impact on the client.

For clients who cannot self-report, use validated behavioural tools:

Acute versus chronic pain

Acute pain is recent, has an identifiable cause (surgery, injury), is expected to resolve with healing, and often raises heart rate and blood pressure. Chronic pain lasts beyond ~3 months, may lack objective signs (the client can appear calm while reporting 7/10), and requires a long-term, multimodal plan. A common exam trap is doubting a chronic-pain client because vital signs are normal — believe the report and treat it.

Pharmacologic Management

The WHO analgesic ladder structures drug choice: Step 1 non-opioids (acetaminophen, NSAIDs) for mild pain; Step 2 weak opioids (codeine) for moderate pain; Step 3 strong opioids (morphine, hydromorphone) for severe pain — with adjuvants added at any step.

• Non-opioids: acetaminophen (max 4000 mg/day, hepatotoxicity risk) and NSAIDs (GI bleeding, renal caution, avoid in some cardiac/renal clients).
• Opioids: morphine, hydromorphone, oxycodone, fentanyl. Effective for moderate-severe pain but carry sedation, respiratory depression, constipation, nausea, and urinary retention.
• Adjuvants: drugs whose primary purpose is not analgesia but which help specific pain types — certain antidepressants and anticonvulsants (gabapentin, pregabalin) for neuropathic pain, and corticosteroids for inflammatory or bone pain.

Opioid safety (high-yield)

Before and after opioids, assess sedation level and respiratory rate — sedation precedes respiratory depression. A respiratory rate around 8 breaths/min in an adult is a hold-the-dose event: withhold the next dose and notify the prescriber. Naloxone is the reversal agent for opioid-induced respiratory depression. Constipation is an expected, non-tolerating effect — start a bowel regimen (fluids, fibre, stool softener) proactively. Opioids are high-alert drugs requiring independent double-checks and controlled-substance counts.

Non-Pharmacologic Comfort Measures

Non-drug strategies are effective on their own for mild pain and as powerful adjuncts to medication. Offer them routinely:

• Positioning and repositioning, splinting a surgical site during coughing
• Heat or cold application (per order/policy)
• Distraction, guided imagery, music, and relaxation/deep breathing
• Massage and touch, a quiet, calm environment, and adequate rest
• Cognitive-behavioural approaches and client teaching that increase a sense of control

Clustering care to protect sleep, dimming lights, and reducing noise all support comfort and rest, which in turn lower pain perception.

Palliative and End-of-Life Pain Principles

In palliative care, the goal shifts to comfort and quality of life. Key principles:

1. Around-the-clock (ATC) dosing for constant pain — give analgesics on a fixed schedule rather than waiting for pain to peak — plus breakthrough (PRN) doses for flares.
2. Titrate to comfort: there is no arbitrary maximum for opioids at end of life; the dose is what relieves suffering, guided by the client's report and sedation/respiratory status.
3. Address the concern that adequate opioids 'cause' death — the intent is comfort, and appropriate titration is safe and ethical (the principle of double effect).
4. Anticipate and treat companion symptoms: constipation, nausea, dyspnea, and anxiety.
5. Honour advance directives and the client's stated wishes, and support the family.

Tolerance, dependence, and addiction

The exam expects you to separate three commonly confused terms. Tolerance is a physiologic need for a higher dose over time to achieve the same effect. Physical dependence means abrupt withdrawal produces symptoms, so opioids are tapered rather than stopped suddenly — this is normal and expected with sustained therapy. Addiction is a psychological, compulsive drug-seeking behaviour despite harm. Fear of addiction should not lead a nurse to under-treat legitimate pain, a well-documented cause of needless suffering.

Patient-controlled analgesia and equianalgesia

Patient-controlled analgesia (PCA) lets the client self-administer small preset opioid doses via a pump with a lockout interval that prevents overdose. Teach that only the client presses the button (never family), and continue to monitor sedation and respiratory rate. When switching routes or drugs, prescribers use equianalgesic dosing so the new order provides comparable relief; the PN's role is to reassess effectiveness after the change.

Worked scenario

A post-operative client rates incisional pain 8/10 one hour after surgery, with a respiratory rate of 16 and a stable blood pressure. The right action is to administer the ordered opioid, then reassess pain and respiratory status about 30 minutes later, adding non-pharmacologic measures such as positioning and splinting the incision. Withholding an ordered analgesic from a client in severe pain with adequate respirations is a classic wrong answer.

Exam strategy

On the exam, choose answers that believe the client's pain, act on it promptly, combine pharmacologic and non-pharmacologic measures, and prioritize airway/breathing safety with opioids. Always reassess after an intervention — pain management is a continuous assess-treat-reassess cycle, and documenting the client's response closes the loop.