This test requires patients to gradually increase their heart rates, leading to increased requirement of blood in the muscles of the heart and the electrocardiogram (ECG) is recorded simultaneously. If the ECG shows a blockage of more than 70%, angina of the heart is indicated.
Patients undergo physical exertion for this test to increase the heart rate. The intensity of exertion is gradually increased according to a standard rate called Bruce’s Protocol. The accompanying ECG readings will reflect the deficit of blood and oxygen in the heart muscles during the exercises. The patient is asked to stop as soon as the ECG readings change or any chest pain or breathlessness.
A cardiopulmonary exercise monitors the response of the heart and the lungs to the exertion involved. The test is used for many cardiac as well as pulmonary ailments.