A cardiac stress or exercise electrocardiogram (EKG) is a test that checks for changes in your heart while you exercise. Sometimes EKG abnormalities can be seen only during exercise or while symptoms are present. This test is sometimes called a "stress test" or a "treadmill test." During a stress test, you may either walk on a motor-driven treadmill or pedal a stationary bicycle. Your heart's electrical activity is then translated into line tracings on paper and compared to your resting EKG.


Nuclear Cardiology Studies

The most common nuclear cardiology study is a cardiac perfusion scan. This scan measures the amount of blood in your heart muscle at rest and during exercise. It is often done to find out what may be causing chest pain, and it is performed after a heart attack to see if areas of the heart are not getting enough blood or how much heart muscle has been damaged.