AANP Adult Gerontology Primary Care Nurse Practitioner Practice 2025 - Free Practice Questions and Study Guide

Calcium channel blockers are primarily used to treat hypertension because they work by relaxing the blood vessels, which decreases vascular resistance and lowers blood pressure. These medications inhibit the movement of calcium ions into the cells of the heart and blood vessel walls, leading to decreased contractility of the heart and dilation of the peripheral arteries. This dual action helps in effectively managing high blood pressure and improving overall cardiovascular health.

In the context of the other conditions listed, hyperglycemia is typically addressed through the use of insulin or oral hypoglycemic agents rather than calcium channel blockers. Copper deficiency requires supplementation with copper or dietary adjustments. Hypothyroidism is managed with thyroid hormone replacement therapies such as levothyroxine, none of which involve calcium channel blockers. Therefore, hypertension is the primary condition where calcium channel blockers play a significant therapeutic role.