An 70-year-old man complains of lower back pain that is accompanied with strong muscle spasms. He is otherwise healthy. Which of the following drugs might be effective in reducing the magnitude of the spasms? A) A drug that inhibits Ca²⁺ release from the sarcoplasmic reticulum B) A drug that inhibits myosin light chain kinase C) A drug that blocks Ca²⁺ channels in the cell membrane D) An acetylcholinesterase inhibitor E) An inhibitor of skeletal muscle glucose uptake

Question

Quizplus · Accepted Answer

A drug that inhibits Ca²⁺ release from the sarcoplasmic reticulum can reduce muscle spasms by decreasing calcium availability for muscle contraction, thus reducing the magnitude of the spasms.

An 70-Year-Old Man Complains of Lower Back Pain That Is