Ace the Ambulatory Care Nurse Exam 2025 – Blaze Your Trail in Healthcare!

Adalat is classified as a calcium channel blocker, which is a type of medication that inhibits the influx of calcium ions into cardiac and smooth muscle cells. This action leads to relaxation of the vascular smooth muscle, resulting in vasodilation and a decrease in blood pressure. Calcium channel blockers are commonly used in the treatment of hypertension, angina, and certain arrhythmias.

Other medications listed do not fall under the category of calcium channel blockers. Lanoxin (digoxin) is a cardiac glycoside used to treat heart failure and atrial fibrillation. Bumex (bumetanide) is a loop diuretic used to reduce excess fluid in the body caused by conditions such as heart failure. Zestril (lisinopril) is an ACE inhibitor that helps relax blood vessels and reduce blood pressure but does not affect calcium channels. Thus, Adalat is the correct choice as it specifically works by blocking calcium channels, differentiating it from the functions and classifications of the other medications.