In hypertensive emergency with acute target organ damage, which IV antihypertensive is preferred for rapid blood pressure reduction?

• A. Captopril
• B. Nicardipine
• C. Clonidine
• D. Nifedipine

Answer: (B)

In a hypertensive emergency with acute target organ damage, you need an IV drug that lowers blood pressure quickly but in a controlled, titratable way to protect organs. Nicardipine fits this need because it’s a short-acting calcium channel blocker given by IV infusion, allowing precise dose adjustments in minutes. Its onset is rapid, and you can titrate up or down to steadily reduce mean arterial pressure without overshooting, which helps preserve cerebral and renal perfusion while addressing the crisis.

The other options have drawbacks. Captopril is typically given orally and has slower, less predictable onset for an emergency reduction. Clonidine can be used in emergencies but has slower onset and risks sedation and rebound hypertension. Immediate-release nifedipine can cause a too-rapid drop in BP and potential ischemia, making it unsuitable for acute TOD.