A 60-year-old female with a history of hypertension and Type 2 Diabetes presents with a new onset of hypokalemia, metabolic alkalosis, and resistant hypertension despite being on three antihypertensive medications. Physical examination reveals a palpable abdominal mass. What is the most likely underlying diagnosis?
✓ Correct Answer: Option A
Resistant hypertension, hypokalemia, and metabolic alkalosis in an older patient with an abdominal mass (suggesting an abdominal aneurysm or other vascular lesion) are highly suggestive of renal artery stenosis, particularly fibromuscular dysplasia or atherosclerotic disease.