The radioactive fluid will be in your body for 24 to 36 hours after the test. This will help remove radioactive fluid from the body. A nuclear stress test can take two or more hours, depending on the radioactive tracer and imaging tests used. Will I be radioactive after a nuclear medicine scan? Yes, you will be radioactive after a nuclear medicine scan.
But we use such small amounts of radiotracers that you won't be radioactive in a day. After the test, you may feel tired or dizzy, or you may have a headache. These symptoms should go away with time and rest. The test lasts about 3 to 4 hours.
Although the patient is exposed to a small amount of radiation, the test is considered safe. During a typical nuclear stress test, you are exposed to 11 millisieverts of radiation. This is about three times the dose of radiation you receive just for living your normal daily life for a year.