What is a low ejection fraction?
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Harper Collins
Studied at the University of Edinburgh, Lives in Edinburgh, Scotland.
As a medical professional with expertise in cardiology, I can explain that a low ejection fraction (EF) is a measure of how well the heart is pumping blood. The ejection fraction is a percentage that indicates the amount of blood leaving the heart's main pumping chamber, the left ventricle, with each contraction. A normal ejection fraction is generally between 50% and 70%. An ejection fraction of 40% or lower is considered low and may indicate that the heart is not pumping as effectively as it should be. Conditions such as heart failure, heart attack, or cardiomyopathy can lead to a reduced ejection fraction.
Studied at Harvard University, Lives in Boston. Passionate about environmental sustainability and currently working for a conservation organization.
The left ventricle is the heart's main pumping chamber that pumps oxygenated blood through the ascending (upward) aorta to the rest of the body, so ejection fraction is usually measured only in the left ventricle (LV). An LV ejection fraction of 55 percent or higher is considered normal.
2016-2-11
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Charlotte Hill
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The left ventricle is the heart's main pumping chamber that pumps oxygenated blood through the ascending (upward) aorta to the rest of the body, so ejection fraction is usually measured only in the left ventricle (LV). An LV ejection fraction of 55 percent or higher is considered normal.
