A 48-year-old female presents with an asymptomatic blood pressure reading of 210/125 mmHg. Fundoscopic examination reveals bilateral optic disc edema (papilledema), and serum creatinine is acutely elevated. What is the primary therapeutic objective for blood pressure reduction in this hypertensive emergency?

Answer and explanation

Correct answer: C. Lower Mean Arterial Pressure (MAP) by no more than 20% to 25% over the first hour

  1. Step 1: Severe hypertension with acute end-organ damage (papilledema, acute renal impairment) constitutes a hypertensive emergency.
  2. Step 2: To prevent cerebral, myocardial, or renal hypoperfusion resulting from altered vascular autoregulation, AHA/ACC guidelines recommend reducing MAP by no more than 20% to 25% over the first hour, then toward 160/100 mmHg over the next 2 to 6 hours.
Answer
Lower Mean Arterial Pressure (MAP) by no more than 20% to 25% over the first hour.
Why not the others: Precipitous drops to normal levels risk ischemic stroke and myocardial infarction; sublingual nifedipine is contraindicated due to unpredictable precipitous hypotension; withholding treatment allows ongoing organ injury.

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