The actual exercise test takes only around 15 minutes. A health care provider monitors the heartbeat while the person walks on a treadmill or pedals a stationary bike.Ī stress test usually takes about an hour, including both prep time and the time it takes to do the actual test. In an exercise stress test, sensors (electrodes) taped to the chest record the heart's rhythm. Wear or bring comfortable clothes and walking shoes. Make sure your doctor and the health care team member monitoring your stress test know that you use an inhaler.
If you use an inhaler for asthma or other breathing problems, bring it to the test. Some medications might interfere with certain stress tests. You may need to avoid caffeine the day before and the day of the test.Īsk your doctor if it's safe for you to continue taking all of your prescription and over-the-counter medications before the test. You may be asked not to eat, drink or smoke for a period of time before a stress test.
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Your doctor will tell you how to prepare for your stress test. Although very rare, it's possible that an exercise stress test could cause a heart attack. Arrhythmias that occur during an exercise stress test usually go away soon after you stop exercising. The problem should go away after you stop exercising. Your blood pressure may drop during or immediately after exercise, possibly causing you to feel dizzy or faint. Possible complications of an exercise stress test are: Request an Appointment at Mayo Clinic RisksĪ stress test is generally safe. If an exercise stress test doesn't pinpoint the cause of your signs and symptoms, your doctor may recommend a stress test with imaging, such as a nuclear stress test or stress test with an echocardiogram. Your doctor may use a stress test to determine when you can safely have surgery, such as valve replacement or a heart transplant. The test results also help your doctor decide on the best treatment for you. If you've already been diagnosed with a heart condition, an exercise stress test can help your doctor determine if your current treatment is working. An arrhythmia can cause your heart to beat too fast, too slowly or irregularly. Heart arrhythmias occur when the electrical signals that coordinate your heartbeat don't work properly.