Radioisotope stress tests are procedures that measure the heart's function. Before this test is performed, your doctor may begin noninvasive testing, such as the exercise stress test. Depending on the results, you may need a more advanced procedure.
Types
Various types of tests exist to diagnose possible heart complications. According to the American Heart Association, your doctor may consider factors such as history of heart problems, current symptoms and his interpretation of these factors when deciding which tests you should take. The radioisotope treadmill test allows your doctor to evaluate the blood flow to the heart with activity.
Description
The radioisotope treadmill test, also called a nuclear treadmill stress test, is a two-part procedure. The first step involves the injection of a radioisotope fluid, which will circulate throughout your body. Nuclear images will be obtained when you begin the second part of the test, in which you exercise on the treadmill.
Classification
Because fluids are injected into the body, the radioisotope treadmill test is classified as an invasive procedure.
Requirements
Standard requirements to ready you for your test include fasting from foods and beverages for a period and refraining from substances that may affect your heart rate, such as smoking and caffeine.
Considerations
Consider wearing comfortable shoes and attire when dressing for your radioisotope treadmill test. Testing may take approximately three hours.
