A patient has an end-diastolic volume of 120 mL and an end-systolic volume of 42 mL. What is the ejection fraction?

Answer and explanation

Correct answer: C. 65 %

  1. Step 1: Stroke volume mL.
  2. Step 2: EF .
Answer
65 %.
Why not the others: 35 %: The fraction remaining in the ventricle was given. 78 %: The stroke volume was given as a percentage. 185.71 %: The stroke volume was divided by the end-systolic volume.

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