The test (scan) is done in two parts, while resting and with stress. For the first part, an IV is started then the nuclear imaging material is given and allowed to circulate for 30 minutes while you rest comfortably in a bed or chair.
After 30 minutes, you will be asked to lie flat with your left arm above your head and the first scan will be done, taking about 15 minutes. After this scan, the second part of the test will begin.
For the second part of the test you will rest on a bed or chair, Persantine will be given through your IV, and then you will be given another injection of nuclear imaging material. After the injection, you will be asked to do some light exercise for about four minutes. The exercise may be either swinging your legs and/or doing hand exercises using soft hand grips. Once again, the imaging material will circulate for 30 minutes while you rest, though you can eat or drink while you wait. Then the final scan will be done using the same camera, taking about 15 minutes.
It is important for you to lie still for each scan while the camera moves around your chest. The two scans will help the cardiologist tell if any defects or blockages are temporary, or if they are permanent due to earlier heart damage.