Postoperative pain should be evaluated using what type of tool?

• A. A standardized pain scale.
• B. Vital signs alone.
• C. Observation only.
• D. Non-scored patient report.

Answer: (A)

Pain is a subjective experience, and its intensity can change from moment to moment. Using a standardized pain scale provides a consistent way to quantify how much pain a patient feels, track changes over time, and guide treatment decisions like adjusting analgesic doses. It also improves communication among the care team, because everyone uses the same measurement to understand and respond to the patient’s needs.

Different patients may use different scales, so you can choose one appropriate for the person: a numeric rating scale (0–10) for adults, the Wong-Baker faces scale for children, or the FLACC scale for nonverbal patients. Relying on vital signs alone isn’t reliable because heart rate, blood pressure, and other metrics can be influenced by anesthesia, medications, or other factors and don’t reliably reflect pain intensity. Observing the patient without their input misses the personal experience of pain, and a non-scored report lacks a standardized way to compare severity over time. A standardized tool gives a clear, actionable understanding of pain to ensure appropriate relief.