Pharmacology and the Nursing Process by Linda Lane Lilley: Practice Exam

Calcium channel blockers are commonly used to treat hypertension, or high blood pressure, by relaxing and widening blood vessels. While they may have some off-label uses for other conditions, such as treating diabetes, these are not their primary or most common purpose. They are also not used to cure bacterial infections or manage thyroid disorders. However, they are useful in preventing cerebral artery spasms, which can lead to strokes or other serious conditions. Thus, this is the most fitting and important application of calcium channel blockers outside of treating hypertension.