What does "Ejection fraction" mean in a report or doctor's letter? In our medical dictionary, you will find a patient-friendly explanation of the meaning of this medical term.
Ejection fraction is a measurement that shows how well the heart is pumping blood. It specifically refers to the amount of blood the heart's main pumping chamber, the left ventricle, pushes out to the body with each heartbeat. The measurement is expressed as a percentage, with a normal range being between 50% and 70%. A lower percentage may indicate a heart problem.
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