Is the radioactive injection dangerous?
No, the level of radioactivity that the patient is exposed to is very low, and controlled. It is similar to other imaging procedures like CT and x-ray. The patient is not considered dangerous to other friends and family, although a small amount of radioactivity may remain in the system for 8-10 hours. Patients are encouraged to drink a lot of water after the exam, as the tracer is excreted in the urine.
