Term newborn blood volume is approximately:

• A. 65 to 70 mls/kg
• B. 80 to 85 mls/kg
• C. 100 to 120 mls/kg
• D. 120 to 140 mls/kg

Answer: (B)

Term newborns have about 8% of their body weight in blood, which translates to roughly 80–85 mL per kilogram. This means a 3.5 kg term infant would have ~280 mL of blood. This proportional relationship is why the correct value sits around 80–85 mL/kg and is used to estimate total blood volume for transfusion calculations, resuscitation planning, and interpreting blood loss. The other ranges fall outside the typical term newborn estimate.