Orlando Health has a state-of-the-art nuclear medicine department where non-invasive tests are performed. A nuclear stress test can determine if your heart muscle is getting the blood supply it needs. After a small amount of a radionuclide is injected into your blood, our nuclear camera takes pictures of your heart. A nuclear stress test usually consists of two phases: The first phase includes imaging while you are at rest, and the second phase images are obtained after you exercise on the treadmill. A different approach that does not require exercising is utilized for patients that cannot exercise, so that we may obtain the same results. The radioactive material is quickly and safely cleared from your body.