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Ejection Fraction (EF)
Ejection Fraction (EF) The amount of blood pumped out of a ventricle during each heart beat. The ejection fraction evaluates how well the heart is pumping; Normally 50 - 70 percent.
RELATED TERMS--------------------------------------
Blood
The life-maintaining fluid which is made up of plasma, red blood cells (erythrocytes), white blood cells (leukocytes), and platelets; blood circulates through the body's heart, arteries, veins, and capillaries; it carries away waste matter and carbon dioxide, and brings nourishment, electrolytes, hormones, vitamins, antibodies, heat, and oxygen to the tissues.
Ventricle
One of the two lower chambers of the heart.
Heart
The hollow, muscular organ responsible for pumping blood through the circulatory system.
SIMILAR TERMS--------------------------------------
Ejection fraction
The measurement of the blood pumped out of the ventricles.
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End-Stage Renal Disease (ESRD)
The final phase of kidney disease; treated by dialysis or kidney transplantation.
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A normal level of glucose (sugar) in the blood. |Compare to hyperglycemia and hypoglycemia.
Exchange Lists
A grouping of foods by type to help people on special diets stay on the diet. Each group lists food in serving sizes. A person can exchange, trade, or substitute a food serving in one group for another food serving in the same group. The lists put foods in six groups:
ECMO
Extra Corporeal Membrane Oxygenation. In patients who are unable to provide oxygen for their own blood or enough blood circulation, they can be put on life support known as extra corporial membrane oxygenation. The blood is withdrawn from a large vein in the body and passes through a pumping mechanism, and then through a device which puts oxygen into the blood and removes carbon dioxide from the blood. The blood is then returned to the body and circulated in such a way as to sustain life.
Ectopic
Out of place. An ectopic heart beat originates in an abnormal location of the heart.
Ejection Fraction (EF)
Electrocardiogram (EKG or ECG)
A test that records on graph paper the electrical activity of the heart via small electrode patches attached to the skin. An EKG helps a physician determine the causes of abnormal heartbeat or detect heart damage.
Electrolyte
One of the substances in the blood that helps to regulate the proper balance of body fluids. Examples of electrolytes include sodium and potassium.
Electrophysiology (EP) Study
An EP Study is a recording of the electrical activity your heart. This test is used to help your doctor find out the cause of your rhythm disturbance and the best treatment for you. During the test, your doctor may safely reproduce your arrhythmia, then give you medications to see which one controls it best.
Endocarditis (SBE)
An infection of the inner lining of the heart or its valves. It is usually caused by bacteria and is more likely to occur in people who have heart valve defects or have had heart surgery to treat valve disease.
Endothelium
The interior surfaces of blood vessels. The endothelium, which is the site of atherosclerosis in arteries, is composed of specialized cells called epithelial cells.
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