How does the radioactivity affect someone after the myocardial perfusion scan?

Cancer risk: It is important to remember that tests commonly done, such as myocardial perfusion scans, ct scans, and plain xrays, expose you to radiation. It adds up. There is an increased incidence of cancer many years later. We cannot practice medicine without those tests but they should only be performed when absolutely necessary. You should question the need for tests involving radiation exposure.

Not at all: There are no known adverse effects from the radioactivity used in a myocardial perfusion scan. There are theoretical risks, however, these risks have not been proven. A myocardial perfusion scan involves about 10 msv of radiation exposure. As discussed by ray gibbons md of the mayo clinic, the true risk of cancer from this low level of radiation may never be known - http://sgoti.Ws/p12rjb.

No effect: The isotope used for myocardial perusion scan eventually decays and disappears. Tc99m sestamibi has half life of 6 hours and thallium another isotope 2.7 days.They use ionizing irradiation internally in low doses, thallium has more radiation dose than sestamibi. There are usually no reactions to the radionuclides.. Some scans are performed with exercise and others with meds to increase heart rate.