What measure should a nurse recommend for a pregnant woman experiencing leg cramps when reclining?

Applying heat to the affected area is effective for alleviating muscle cramps. Heat promotes increased blood flow to the muscles and can help relax tight or tense muscles, providing immediate relief from discomfort. This method is particularly useful for leg cramps that can occur during pregnancy, as many women experience changes in circulation and muscle fatigue.

While increasing calcium intake is beneficial for overall muscle health during pregnancy, it may not provide immediate relief for acute cramps. Changing sleeping position may help in some cases, but it does not directly address the cramping. Elevating the legs can improve circulation and might be beneficial for leg discomfort, but it does not specifically target the muscle spasms causing the cramps. Therefore, applying heat is the most direct and immediate method for managing this type of muscle cramping.