Blood_Volume_Calculation_guideline v.1

Total blood volume, L (adults and children ≥25 kg) Male = [ 0.3669 × (height, m)3 + 0.03219 × (weight, kg) + 0.6041 ] Female = [ 0.3561 × (height, m)3 + 0.03308 × (weight, kg) + 0.1833 ] Total blood volume, mL (neonates and children <25 kg) = weight, kg × Y, where Y is as follows: Preterm neonate: 100 mL/kg (Weight input should be in g) Term neonate: 85 mL/kg (Weight input should be in g) Infant aged 1-4 months: 75 mL/kg (Weight input should be in kg) Child <25 kg: 70 mL/kg (Weight input should be in kg) RBC volume, mL = total blood volume, mL × hematocrit / 100 Plasma volume, mL = total blood volume, mL × ( 1 – hematocrit / 100 )

Maryam Razavi

maryam.razavi2009@gmail.com

@CambioCDS

Blood volume calculation calculates total blood volume, red blood cell volume, and plasma volume.

Use when blood volumes are needed (e.g. RBC exchange, plasma exchange, coagulation factor drug dosing, RhIG dosing calculations).

Nadler SB, Hidalgo JH, Bloch T. Prediction of blood volume in normal human adults. Surgery. 1962;51(2):224-32. Brecher ME, Shaz BH, Schwartz J. Look This Up, Too! A Quick Reference in Apheresis. 3rd Ed. AABB Press, Bethesda MD 2013.

OBSERVATION.blood_volume_calculation.v0, OBSERVATION.height.v2