An ultrasound test is used to access the function of the heart. An echocardiogram can examine the heart muscle, heart values and blood flow through the heart. There is no preparation for an echocardiopgraph. The patient is requested to remove the clothing on the upper portion of the body and wear a gown. Electrodes are placed on the chest and an EKG will be taken continuously. A transducer will be placed on and moved to various places on the chest. A physician will read the echocardiogram. One hour should be allowed for this test.