A 48-year-old man has resistant hypertension despite three medications. Potassium is 3.0 mEq/L without diuretic use. Plasma aldosterone concentration

Question

A 48-year-old man has resistant hypertension despite three medications. Potassium is 3.0 mEq/L without diuretic use. Plasma aldosterone concentration is elevated and renin activity is suppressed. There is no edema. Which of the following is the most likely diagnosis?

Accepted Answer

Primary aldosteronism

Answer

Renal tubular acidosis

Answer

Cushing syndrome

Answer

Essential hypertension

Answer

Pheochromocytoma

Primary aldosteronism — USMLE Step 3 MCQ

A 48-year-old man has resistant hypertension despite three medications. Potassium is 3.0 mEq/L without diuretic use. Plasma aldosterone concentration is elevated and renin activity is suppressed. There is no edema. Which of the following is the most likely diagnosis?