Blood and plasma volume in adult males

Total blood volumes were estimated in 94 normal ambulatory males, aged 19–95 years, by the T-1824 dye dilution method. There were no significant age changes when results were expressed in terms of either body weight or surface area. The mean values for individual age groups between 40'49 and 80'95 years varied between 46.7 ± 1.5 and 51.5 ± 1.5 ml/kg body wt. for plasma volume and between 75.1 ± 2.0 and 82.3 ± 2.0 ml/kg body wt. for total blood volume. Submitted on October 16, 1961