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Electrocardiogram An electrocardiogram (ECG or EKG) detects the electrical impulses that cause the heart to contract. Changes in the EKG signal can indicate electrical disturbances of the heart conducting system, as well as structural abnormalities. This test is done by placing electrodes on the chest, wrists and ankles and connecting them to a monitor that displays the heart's electrical impulses. Following your EKG, a printed report will be sent to your doctor.
Treadmill test for basic evaluation A stress echocardiogram ("stress echo") is a non-invasive test that combines ultrasound pictures of the heart with an exercise test. It checks the coronary arteries for narrowing by evaluating muscle function at rest and after exercise. Typically, you will be asked to walk on a treadmill in order to increase your heart rate. If you can't exercise, you'll be given medicine that raises your heart rate without physical activity.
Echocardiogram An echocardiogram, often called "echo," is a graphic outline of the heart's movement. During this test, high-frequency sound waves (ultrasound) are sent into the body. Echoes received are used to produce an image of the heart's chambers and valves. These pictures can be seen on a monitor and recorded, allowing your doctor to see how well your heart is working. An echocardiogram is similar to ultrasound exams performed on pregnant women.
Nuclear Cardiology With nuclear-imaging tests, your doctor can check the blood supply to your heart and see how well your heart works. The tests usually involve injecting a small amount of radioactive material into a vein and then tracing it through your bloodstream to your heart muscle. A special camera that can see the tracer is then used to take pictures of your heart.