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Blood Volume 70 mL/kg — FRCA Primary MCQ

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EasyPhysiology - CardiovascularBlood Volume 70 mL/kgFRCA Primary

The normal blood volume of a 70 kg adult male is approximately:

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Correct answer: A — 5000 mL (70 mL/kg)

Normal blood volume is approximately 70 mL/kg in adult males (approximately 5 L in a 70 kg man). Adult females have approximately 65 mL/kg. Neonates have approximately 80 mL/kg. Plasma volume is approximately 40 mL/kg (approximately 3 L). Red cell volume is approximately 30 mL/kg.

Reference: Power Kam 2018 Principles of Physiology for the Anaesthetist