Difficulty: Medium
Average Score: 68%
Simulated
A client has been prescribed diltiazem (Cardizem), and asks the nurse what type of drug this is. Which response by the nurse is most appropriate?
Correct answer
D
Rationale
The correct answer is D: A calcium channel blocker. Diltiazem belongs to the class of drugs known as calcium channel blockers, which work by inhibiting the influx of calcium ions into cardiac and smooth muscle cells, leading to vasodilation and decreased cardiac contractility. This helps lower blood pressure and treat certain heart conditions.
Choice A (beta blocker) is incorrect because diltiazem does not target beta-adrenergic receptors. Choice B (sodium channel blocker) is incorrect as diltiazem does not primarily affect sodium channels. Choice C (alpha blocker) is incorrect as diltiazem does not primarily block alpha receptors.
In summary, the correct answer, D, is supported by the mechanism of action of diltiazem as a calcium channel blocker, while the other choices do not accurately describe the drug's pharmacological class.
Choice A (beta blocker) is incorrect because diltiazem does not target beta-adrenergic receptors. Choice B (sodium channel blocker) is incorrect as diltiazem does not primarily affect sodium channels. Choice C (alpha blocker) is incorrect as diltiazem does not primarily block alpha receptors.
In summary, the correct answer, D, is supported by the mechanism of action of diltiazem as a calcium channel blocker, while the other choices do not accurately describe the drug's pharmacological class.