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In a healthy heart, the fraction is a higher number A low number means that your heart has. What does ejection fraction measure The american heart association explains ejection fraction as a measurement of heart failure. Ejection fraction is a measurement doctors can use to help diagnose heart failure A normal range is between 52% and 72% for males and between 54% and 74% for females. The ejection fraction is one of the most common parameters used to diagnose heart failure It refers to the percentage of blood the left ventricle pumps out during the systolic phase Ejection fraction measures the amount of blood pumped out of your heart’s lower chambers, or ventricles Learn more about how it is measured. Ejection fraction is a measurement of the percentage of blood leaving the heart each time it squeezes When the heart squeezes, it's called a contraction An ejection fraction below 40% means the heart is struggling to provide sufficient blood to the body, which is known as heart failure Values between 40% and 50% are. Ejection fraction describes the pumping ability of the left side of the heart When the amount of blood ejected becomes lower it's considered heart failure. Ejection fraction is the percentage of blood pumped out of the heart’s left ventricle with each heartbeat The left ventricle is the heart’s main pumping. Ventricular ejection fraction (ef) for several decades, ejection fraction (ef) has been the dominating method for assessing left ventricular systolic function Ejection fraction is simple to.