Incorrect Answer

Renal artery stenosis is a common cause of secondary hypertension. In adults it is mostly clustered into two groups:

• Atherosclerotic diseases affecting mainly the proximal third of the main renal artery. This is mostly seen in older men.
• Fibromuscular dysplasia of the distal two-thirds of the main renal artery and its branches. This is mostly seen in young women.

Renal artery stenosis should be suspected in this young patient with resistant hypertension. However, the absence of an abdominal bruit in the region of the renal arteries, despite the presence of hypokalemia, rules out this diagnosis.