Question

a client is being treated for moderate hypertension and has been taking diltiazem for several months. the client schedules an appointment with the primary health care provider because of episodes of chest pain, and prinzmetals angina is diagnosed. the client asks the nurse which therapeutic effects the medication will provide, and the nurse provides education. which statement by the
answer options
1 \it increases the force of contraction of heart tissues.\
2 \it increases oxygen demands within the myocardium.\
3 \it prevents an influx of calcium ions in the smooth muscle.\
4 \it leads to an increase in calcium absorption in the smooth muscle.\

Explanation:

Diltiazem is a calcium channel blocker. Its mechanism of action involves preventing calcium ions from entering smooth muscle cells (including vascular smooth muscle), which leads to vasodilation, reduced peripheral resistance, and decreased myocardial oxygen demand, helpful in angina and hypertension. Option 1 is incorrect as it doesn't increase contractility. Option 2 is wrong as it decreases oxygen demands. Option 4 is incorrect as it doesn't increase calcium absorption. Option 3 correctly describes its action of preventing calcium influx in smooth muscle.

Answer:

1. "It prevents an influx of calcium ions in the smooth muscle."