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Plasma volume was measured with radioactive iodinated I 131 serum albumin in 80 normal subjects and 135 hypertensive patients without cardiac or renal failure, and results, expressed in milliliters per centimeter of body height, were correlated with weekly diastolic pressure averages (DBP). Plasma volume (PV) was reduced in renovascular hypertensive patients, whereas it correlated directly with DBP in hypertensive patients with renal parenchymal disease (r = 0.853, P P P P
Robert C. Tarazi (Fri,) studied this question.