ZEV M. MUNK, M.D.C.M.; GEORGE TOLIS, M.D., M.SC., C.S.P.Q. (C)
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To the editor: It was recently suggested in this journal that the measurement of peripheral plasma renin activity after the administration of oral furosemide is a reliable screening test in hypertension to rule out a surgically correctable lesion (1). Plasma renin activity above 5 ng/ml h was associated with a renovascular cause of hypertension in five patients. We wish to report on two additional patients who had markedly elevated plasma renin activity in the furosemide screening test and no evidence of any renovascular abnormalities.
Patient 1 was a 54-year-old white woman who had hypertension and superimposed hypertensive paroxysms responsive to
MUNK ZM, TOLIS G. Furosemide Screening Test and Pheochromocytoma. Ann Intern Med. 1975;83:739–740. doi: 10.7326/0003-4819-83-5-739_2
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Published: Ann Intern Med. 1975;83(5):739-740.
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Print ISSN: 0003-4819 | Online ISSN: 1539-3704
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