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Hepatic Blood Flow Percentage — FRCA Primary MCQ

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ModeratePhysiology - Gastrointestinal & HepaticHepatic Blood Flow PercentageFRCA Primary

The liver receives approximately what percentage of cardiac output?

Educational content. Not a substitute for clinical judgement or local policy.

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Correct answer: B — 25%

The liver receives approximately 25% of CO. Portal vein provides ~75% of blood flow but ~50% of oxygen supply. Hepatic artery provides ~25% of blood flow but ~50% of oxygen supply due to higher O2 content.

Reference: Power Kam 2018 Principles of Physiology for the Anaesthetist