This allows your doctor to monitor your heart rate. An exercise stress test is primarily used to help your doctor determine if your heart receives enough oxygen and proper blood flow when it needs it most, such as when you are exercising.
It can be ordered for people who have been experiencing chest pains or other symptoms of coronary heart disease also called coronary artery disease. An exercise stress test may also be used to help determine your level of health, especially if you are starting a new exercise program. This allows your doctor to learn what level of exercise you can safely handle. If you are a smoker over 40 years old, or if you have other risk factors for heart disease, you should talk to your doctor to see if an exercise stress test is right for you.
However, your risk of experiencing these reactions during the test is low, since your doctor will screen you for problems beforehand. People who are at higher risk of these complications — such as those with advanced coronary heart disease — are rarely asked to do the test.
Prior to your test, your doctor will perform a physical exam and ask about your complete medical history. At this point, tell your doctor about your symptoms, especially any chest pains or shortness of breath.
You should also tell your doctor about any conditions or symptoms that may make exercising difficult, such as stiff joints from arthritis. Finally, let your doctor know if you have diabetes , because exercise affects blood sugar. If you do have diabetes, your doctor may want to monitor your blood glucose levels during the exercise test as well.
Your doctor may instruct you to avoid eating or drinking caffeinated beverages for 3 hours before the test. This content does not have an English version. This content does not have an Arabic version.
Overview Exercise stress test Open pop-up dialog box Close. Exercise stress test In an exercise stress test, electrodes are taped to your chest to detect your heart's rhythm. More Information Angina Heart disease Myocardial ischemia Small vessel disease Sudden cardiac arrest Tricuspid valve regurgitation Show more related information.
Request an Appointment at Mayo Clinic. Share on: Facebook Twitter. Show references Cardiac nuclear medicine. American College of Radiology. Accessed May 5, What is stress testing? National Heart, Lung, and Blood Institute.
Wolk MJ, et al. Journal of the American College of Cardiology. Yanowitz FG, et al. Werner RA, et al. The changing face of nuclear cardiology: Guiding cardiovascular care toward molecular medicine. Journal of Nuclear Medicine. Arruda-Olson AM, et al. Stress testing to determine prognosis of coronary heart disease. Coronary heart disease. Bonow RO, et al. Nuclear cardiology. Elsevier; However, people with reduced mobility may need to receive a certain medication to produce a similar effect.
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Your doctor will measure your heart activity and blood pressure before you start the test. You will slowly start to exercise on a treadmill or stationary bicycle, and then gradually increase the treadmill speed or bicycle resistance until your heart is working at the target heart rate for your age.
Your doctor may also measure your blood oxygen level, blood pressure, and heart rate. During the test, you will exercise for 10 to 15 minutes. Your doctor will stop the test if you show any sign of a heart problem, or if you are too tired to continue the test.
If you are not able to exercise, your doctor will give you medicine over a to minute period through an intravenous IV line into one of your blood vessels. Your doctor may also take images of your heart during or right after the stress test to see how well blood is flowing through your heart and how well your heart pumps blood when it beats. These pictures can be taken by echocardiography or by injecting a radioactive dye into one of your veins, called a nuclear heart scan.
The amount of radiation in the dye is considered safe for you and those around you. However, if you are pregnant, you should not have this test because of risks it might pose to your unborn child. If your doctor also wants to see how well your lungs are working, you may be asked to wear a mask or mouthpiece to measure the gases that you breathe out during the stress test.
After the stress test, your doctor will measure your heart activity and blood pressure to make sure that both measurements are back within the normal range. You should be able to return to your normal activities right away. If you had a test that involved radioactive dye, your doctor may ask you to drink plenty of fluids to flush it out of your body.
If your stress test shows that your heart is healthy, you may not need further testing or treatment. Your doctor may order other diagnostic tests or imaging tests if the stress test results suggest that you may have a heart condition, if you are physically unable to exercise, or if you continue having symptoms, such as shortness of breath or chest pain. We are committed to advancing science and translating discoveries into clinical practice to promote the prevention and treatment of heart, lung, blood, and sleep disorders, including the use of stress tests.
Learn about current and future NHLBI efforts to improve health through research and scientific discovery. Learn about the following ways the NHLBI continues to translate current research into improved health for people who need stress tests. In support of our mission , we are committed to advancing research on stress tests in part through the following ways.
We lead or sponsor many studies on stress testing. See if you or someone you know is eligible to participate in our clinical trials. Learn more about participating in a clinical trial. View all trials from ClinicalTrials.
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