Postoperative Pain Management

A patient rates pain at 8/10 but is smiling and chatting — do you treat the number or the behavior? Your answer determines whether that patient suffers in silence.

Postoperative pain management starts with systematic assessment using validated tools — the numeric rating scale (0-10) for verbal adults, the Wong-Baker FACES scale for children or cognitively impaired patients, and behavioral cues (guarding, grimacing, restlessness) for nonverbal patients. The patient's self-report is the gold standard; physiological signs like tachycardia and diaphoresis are unreliable because the body adapts. Multimodal analgesia is the current standard: combining opioids with non-opioid adjuncts (acetaminophen, NSAIDs, nerve blocks) reduces total opioid consumption and side effects. Around-the-clock dosing controls pain more effectively than PRN-only regimens in the first 24-48 hours. Patient-controlled analgesia (PCA) gives the patient autonomy — only the patient presses the button, never a family member or nurse, because the built-in sedation safeguard requires consciousness. Before administering opioids, you assess respiratory rate (hold if <12), sedation level (Pasero Opioid-Induced Sedation Scale), and pain intensity. After administration, reassess within 30 minutes for IV and 60 minutes for oral routes. Nonpharmacological interventions — repositioning, ice, splinting the incision, guided imagery — complement medications and should be documented as part of the plan.

Key Distinctions

Don't confuse pain tolerance with adequate pain control — a stoic patient may be undertreated. Students mix up addiction (psychological craving) with physical dependence (expected physiological adaptation) and tolerance (needing higher doses for the same effect); postop patients develop dependence, not addiction. PCA lockout intervals prevent overdose, but the safety mechanism fails if anyone other than the patient pushes the button.

Clinical Pearl

Pain is whatever the patient says it is. Believe the number, not the face — then treat, reassess, and document the response.