What is normal ejection fraction of the heart?

Imran K. Niazi, MD
Clinical Cardiac Electrophysiology

In the normal heart, the main pumping chamber (left ventricle) ejects at least 50 percent of the blood that comes into it with each heartbeat. This is called ejection fraction. It is a measure of the strength of the heartbeat. If the heart is diseased or weak, the ejection fraction decreases.

Linda Martinez
Cardiac Rehabilitation
Normal ejection fraction of the heart is in the range of 60% to 80%.  It can also be classified as normal, mildly reduced, moderately reduced and severely reduced without giving a percentage.  The ejection fraction is used as a measure of the severity of heart failure and helps guide treatment.  Please note:  Symptoms do not always match the severity of the ejection fraction.  Some very symptomatic patients can have normal ejection fractions and some patients with very low ejection fractions can have almost no symptoms of heart failure.  Ejection fractions can also be measured by other heart tests besides the echocardiogram such as heart catheterizations and another test called a MUGA scan.

Continue Learning about Healthy Circulatory System

Healthy Circulatory System

Healthy Circulatory System

The circulatory system is the body's superhighway, comprised of an intricate network of vessels that carry blood to and from all areas of your body. At the core is your heart, which pumps nutrient and oxygen-rich blood to organs s...

o that they can function normally. Cardiovascular exercise and staying well-hydrated are just two ways to help promote good circulation. Learn more about maintaining a healthy circulatory system with expert advice from Sharecare.

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.