Labels:text | screenshot | black and white | black | document OCR: ral renal The two most common causes of unilate and artery stenosis are atheromatous plaques s stenoses fibromuscular hyperplasia. Atheromato al third of are most frequently found in the proxim e-aged and the renal artery and present in the midd plasia elderly. In contrast, fibromuscular hyper he renal involves the middle and distal thirds of renal arteryartery and is the most common cause of stenosis in young patients. patients Plasma renin activity may be normal in in some with unilateral renal artery stenosis, but of plasma series, elevated peripheral venous level ixty per renin activity have been found in up to lave an cent of patients. Such patients may also : function exaggerated response of renin to dynam odium tests such as diuretic administration or s depletion.
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