If the heart rate of a person is 72 beats per minute and each beat ejects 70 ml of blood, what is the cardiac output in litres per minute?
Answer
5.04 L min⁻¹
The correct answer is 5.04 L min⁻¹ — State answer.
Step-by-step solution
- Cardiac output = heart rate × stroke volume.
- Multiply 72 bpm × 70 ml = 5040 ml/min.
- Convert ml to litres: 5040 ml = 5.04 L.
- State answer.
Common mistake: Forgetting to convert ml to L
Concept tested: Cardiac output calculation
Published · How this solution was prepared and checked
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