Description of the test
An exercise stress test determines if your heart muscle is getting enough blood and oxygen during physical activity. The test records your heart's electrical activity as it responds to an increased work load, like exercising. This test usually takes place in a hospital, clinic, or other specialized room with the necessary equipment.
An electrocardiogram produced during an exercise stress test
How often should this test be performed?
Your doctor will decide when and how frequently this test is required.
Why is this test performed?
An exercise stress test is used to evaluate chest pain, identify abnormal heart rhythms, or screen people for cardiovascular disease. It is also used to determine how well the heart tolerates exercise in cases where someone has heart disease or has had a heart attack.
When you exercise, your heart needs more blood and oxygen. If a part of your heart is not getting sufficient blood, this test will identify those abnormalities.
An exercise stress test can also be used to identify narrowing of the arteries after surgical procedures take place (e.g., angioplasty or coronary artery bypass surgery) or to evaluate the effectiveness of certain medications.
Are there any risks and precautions I should know about?
Although an exercise stress test is generally considered safe, it does have some risk of side effects or complications. Though rare, the side effects or complications may include:
- irregular heart rhythm (this can occur while you are exercising)
- chest pain (angina)
- a heart attack
- shortness of breath
- fainting
- falling
As a precaution before the test, discuss with the person performing the test how to signal that you are under too much stress (e.g., you can't breathe or you feel faint).
Do not take this test if you have are having a heart attack or have uncontrolled high blood pressure. Bone or joint problems should be discussed with your doctor before taking this test.
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