2024 PN NCLEX Questions Nursing Practice Question
What classification of drug is Diltiazem?
Correct Answer: A
Rationale: Diltiazem belongs to the classification of calcium-channel blockers, which work by inhibiting calcium ions from entering cardiac and smooth muscle cells. This action helps relax blood vessels, reducing blood pressure and alleviating angina.
Option B, NSAIDs, are non-steroidal anti-inflammatory drugs that relieve pain and inflammation but do not affect calcium channels.
Option C, ACE inhibitors, are used to lower blood pressure by inhibiting the angiotensin-converting enzyme, which is unrelated to Diltiazem's mechanism.
Option D, beta-blockers, reduce heart rate and cardiac output by blocking beta-adrenergic receptors, differing fundamentally from the action of calcium-channel blockers.