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GATE 2024 BM – Question 38

Mammalian Cell Biology, Human Anatomy and Physiology · Circulatory System · 2 marks · Multiple choice

End-diastolic volume is 125 mL,end-systolic volume 50 mL,and heart rate 65/min. Find cardiac output in L/min to two decimals.

  1. 3.25
  2. 4.88
  3. 5.20
  4. 3.00

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Correct answer: (B) 4.88

Explanation

Stroke volume is EDV−ESV=125−50=75 mL per beat. Multiply by sixty-five beats per minute to obtain 4875 mL/min=4.875 L/min. Rounded to two decimals this is 4.88 L/min, B.

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