Treadmill ECG Exercise Testing

Also known as a stress test, a treadmill ECG test is used to determine how the heart responds to being put under stress when exercising. During a stress test, the heart rhythm is continuously monitored with an ECG. The blood pressure is measured several times throughout the test. If the heart muscle is deprived of oxygen during exertion, the ECG produces characteristic waveform changes, which can be interpreted by a doctor to diagnose heart disease. Patients with an abnormal stress test will typically be further investigated if necessary. A stress test can also be used to determine how well previous cardiac treatments like stenting and coronary artery bypass grafts are working.