Body Sodium Blood Volume State in Essential Hypertension: Abnormal Relation of Exchangeable Sodium to Age and Blood Pressure in Male Patients

The circulatory volume and exchangeable sodium (NaE) were measured by the Berne group in 110 normal subjects and 120 patients with benign untreated essential hypertension. Total plasma volume (PV) and blood volume (BV) correlated with total NaE (r = 0.64–0.75, p