Hypertensive emergency — ABIM Board MCQ
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Correct answer: C — Intravenous nicardipine with continuous monitoring and controlled blood pressure reduction
This patient has a hypertensive emergency, demonstrated by severe hypertension with acute neurologic injury (confusion, headache, and papilledema) and acute kidney injury. He requires ICU-level monitoring and a titratable intravenous antihypertensive such as nicardipine. In the absence of aortic dissection or another condition requiring faster lowering, blood pressure should be reduced in a controlled fashion—generally by no more than about 20%–25% initially—rather than immediately normalized. Abrupt reduction to below 120/80 mm Hg can cause cerebral, myocardial, or renal ischemia. Oral clonidine, an oral thiazide, and outpatient follow-up are inappropriate when acute target-organ injury is present. Sublingual immediate-release nifedipine can produce an unpredictable, precipitous pressure decrease and should not be used.
Reference: Alley WD, Copelin EL II. Evaluation of the Efficacy and Safety of Nicardipine Versus Clevidipine for Blood Pressure Control in Hypertensive Crisis. Journal of Emergency Medicine. 2024;67(4):e368-e374. https://pubmed.ncbi.nlm.nih.gov/39181839/