![]() Your health care provider compares the two sets of pictures taken during your nuclear stress test. Drink plenty of water to help flush it out of your system. The radioactive tracer leaves the body in the urine or stool. Your health care provider continues to watch your heartbeat and breathing during this time.Īfter the test you can usually return to your usual activities unless your care provider tells you not to do so. An irregular heart rhythm or other changes in your heartbeat.Īfter the exercise is done, you might be asked to stand still for a few seconds and then lie down for a short while.Usually, you keep exercising until your heart rate reaches a specific goal or you get concerning symptoms. ![]() You can stop exercising anytime you're too uncomfortable. This helps determine how well you breathe during exercise. You may be asked to breathe into a tube during the test. On the images, the radiotracer lights up areas of the heart that don't get enough blood flow. Then the second set of images of your heart are taken. When your heart rate peaks from exercising, the health care provider gives more radiotracer through your IV. If you can't exercise, you might be given medicine by IV that increases blood flow to the heart, just as exercise does. The next part of the test often involves walking on a treadmill or riding a stationary bike. The health care provider takes the first set of images of your heart. It takes a few minutes for your heart cells to absorb it. The substance may feel cold when it goes into your arm. ![]() The substance is also called a radiopharmaceutical. Sticky patches on your chest, and sometimes your legs and arms, record your heartbeat.Ī health care provider inserts an IV into your arm and injects a substance called a radiotracer.A cuff on your arm measures your blood pressure.A health care provider checks the heartbeat while the person walks on a treadmill or pedals a stationary bike. In an exercise stress test, sticky patches called electrodes are placed on the chest and sometimes the arms and legs. Your provider also listens to your heart and lungs for anything that might affect your test results. This helps set safe limits for your exercise. Your care provider asks questions about your medical history and how often and actively you exercise. It depends on the radioactive tracer and imaging tests used. Then the health care provider takes two sets of pictures of the heart - one at rest and another after exercise.Ī nuclear stress test can take two or more hours. What you can expectĪ nuclear stress test uses a substance called a radioactive tracer. Don't apply oil, lotion or cream to your skin on the day of your nuclear stress test. Wear or bring comfortable clothes and walking shoes. Make sure your health care providers know that you use one. If you use an inhaler for asthma or other breathing problems, bring it to the test. Never change or stop your medicines without first talking to your health care provider. Some medicines can interfere with some test results. You may need to avoid caffeine the day before and the day of the test.Īsk your provider if you need to stop taking any medicines before the test. You may be asked not to eat, drink or smoke for a time before a nuclear stress test. Your health care provider tells you how to prepare for your nuclear stress test. Tell your care provider if you have any of these symptoms during a nuclear stress test. These symptoms are usually mild and go away quickly. Some people may have other symptoms during the test, including: Although extremely rare, it's possible that a nuclear stress test could cause a heart attack. ![]() The problem generally goes away after the exercise ends. Blood pressure may drop during or right after exercise. Those that occur during a stress test usually go away shortly after exercising ends or the medicine wears off.
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