Which finding would most clearly indicate effective pain relief after a nonpharmacologic intervention such as guided imagery?

• A. Increased heart rate
• B. Pain intensity score decreased on the standard scale
• C. No body language change
• D. Elevated blood pressure

Answer: (B)

Assessing the effectiveness of nonpharmacologic pain relief relies on the patient’s own report of pain using a validated scale. A lower pain rating on a standard numeric scale indicates that the individual's perceived pain has decreased, showing the intervention is working. Pain is subjective, so the direct measure is the patient’s self-assessment, not necessarily changes in physiology. Vital signs like heart rate or blood pressure can be influenced by many factors besides pain and may not reliably reflect pain relief. Similarly, body language changes are not consistent indicators—some people may show little to no nonverbal change even when pain has lessened. So, a decreased pain score is the best evidence that guided imagery effectively reduced pain.