What does ejection fraction mean on an echocardiogram?

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Ejection fraction is the percent of blood the left side of the heart pumps out with each beat. It is one number in an echocardiogram report, not a diagnosis by itself. AI can explain what the term means and help prepare questions for a clinician, but a cardiologist or ordering clinician should interpret the result with symptoms, history, medicines, and the full report. Chest pain, severe trouble breathing, fainting, or stroke-like symptoms need urgent care.