In an exercise stress test, you'll exercise (usually with a treadmill). During exercise, the team will monitor your heart function with a 12-lead electrocardiogram, which measures the heart’s electrical activity.
We can sometimes do this test just with the electrocardiogram, but sometimes, can also add an echocardiogram (ultrasound of the heart) immediately after you finish exercising to assess the effect of exercise on the heart’s function.