The EF value in cardiac ultrasound is the heart’s ejection fraction, and an ejection fraction of 62% is normal. Ejection fraction refers to the percentage of diastolic blood in the left ventricle that leaves the left ventricle when the heart contracts, and is an indicator of the heart’s contractile function. Echocardiography is the most common method of measuring ejection fraction. The normal value of ejection fraction is 50-70%. If the ejection fraction is less than 50%, it is a decrease in ejection fraction, which indicates that the heart’s systolic function is impaired and the heart is unable to pump enough blood to the whole body, and comprehensive treatment is needed after consulting with a doctor. If the ejection fraction of the patient is 62% during the cardiac ultrasound examination, it means that the systolic function of the patient’s heart is normal. However, there are some patients with diastolic insufficiency or heart failure with preserved ejection fraction. If there is chest tightness or shortness of breath, it is recommended to consult a doctor as soon as possible.