Calculation of plasma volume from body weight is adequate for average persons. However, if the person is at either end of the spectrum for weight (excessively obese or excessively cachectic), then plasma volume should be calculated from body surface area.
plasma volume =
= (factor for gender) * (body weight in kilograms)
Alternative Values
Men
Women
AABB
40 mL / kg
36 mL / kg
Cecil's Medicine
25-43 mL / kg (mean 34)
28-45 mL / kg (mean 36.5)
Jacobs
33.45 +/- 5.18 mL / kg
34.77 +/- 3.24 mL / kg
Mollison
39.8 mL / kg
38.9 mL / kg
Tietz
40-50 mL / kg (mean 45)
40-50 mL / kg (mean 45)
Ganong
45 mL/kg
45 mL/kg
NOTE: Plasma volume based on lean body mass tends to be more accurate than that based on actual body weight.
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