Difficulty: Medium
Average Score: 92%
Full-length
A post-operative client has an order for Demerol (meperidine) 75 mg and Phenergan (promethazine) 25 mg IM every 3-4 hours as needed for pain. The combination of the two medications produces a/an:
Correct answer
B
Rationale
Meperidine (opioid) and promethazine (antihistamine) together produce a synergistic effect, enhancing pain relief and sedation. Promethazine potentiates meperidineÔÇÖs effects.