Nuclear Medicine is a type of radiology imaging that uses radioactive materials to view images of the body’s physiology. These procedures are typically noninvasive and painless and administered via an intravenous injection or an oral administration of the radioactive materials. Depending on the study, the procedure can range from 20 to 30 minutes to a few hours. In some cases, multiple day studies in which the patient leaves and returns at specific times are necessary. The radiation from the pharmaceuticals is generally very minimal.