A patient has a systolic pressure of 120 and a diastolic pressure of 80 mm Hg. What is the approximate mean arterial pressure?

Answer and explanation

Correct answer: B. 93 mm Hg

  1. Step 1: MAP = diastolic + one third of the pulse pressure = 80 + 13. Answer: 93 mm Hg. Why not the others: 100 averages the two values and 80 and 120 are the extremes.

Practise more Cardiovascular, Respiratory and Renal Physiology.

Free questions with an explanation for every one, and full timed USMLE Step 1 mock tests.