Middle English (Scots) carne, from Scottish Gaelic carn; akin to Old Irish & Welsh carn cairn
Ejection fraction is commonly measured by an echocardiogram and serves as a general measure of a person's cardiac function. Ejection fraction is typically low in patients with the systolic form of congestive heart failure.
Signs and Symptoms of Low Ejection Fraction. A low EF can lead to symptoms of: Shortness of breath or inability to exercise. Swelling of the feet and lower legs. Fatigue and weakness. Rapid, forceful, uncomfortable or obviously irregular heart beat. Abdominal discomfort such as swelling, pain or nausea. Mental confusion.