Nuclear medicine technologists typically do the following:
Radioactive drugs, known as radiopharmaceuticals, give off radiation, allowing special scanners to monitor tissue and organ functions. Abnormal areas show higher-than-expected or lower-than-expected concentrations of radioactivity. Physicians and surgeons then interpret the images to help diagnose the patient's condition. For example, tumors can be seen in organs during a scan because of their concentration of the radioactive drugs.
After graduation from an accredited program, a technologist can choose to specialize in positron emission tomography (PET) or nuclear cardiology. PET uses a machine that creates a three-dimensional image of a part of the body, such as the brain. Nuclear cardiology uses radioactive drugs to obtain images of the heart. Patients may exercise during the imaging process while the technologist creates images of the heart and blood flow.