An ejection fraction of 73% falls within the normal range. Ejection fraction is an important index in transthoracic echocardiography, which can reflect the left ventricular systolic function, generally higher than 50% or more belongs to the normal range, 40% to 50% is mildly reduced, 30% to 40% is moderately reduced, and lower than 30% is severely reduced. Transthoracic echocardiography is the method of choice for evaluating the structure and function of the heart, which allows for easy and quick assessment of cardiac function and determination of etiology. The examination includes atrial and ventricular volumes, systolic and diastolic function of the right and left ventricles, thickness of the ventricular walls, structure and function of the valves, and pulmonary hypertension. This test is the main instrumental test for diagnosing heart failure. If there is any heart-related disease, it is recommended to go to the Department of Cardiovascular Medicine of regular hospitals in time.