Since the development of X-ray technology, medical professionals have embraced the concept of radiation as a diagnostic and therapeutic tool. This nuclear science, called radiotherapy, utilizes radioactive particles and elements for diagnosis and treatment of a variety of illnesses. Because X-ray radiation can only image dense materials such as bone, it has limited in application and overexposure can be harmful. Diagnosing certain disorders in soft tissue is now possible through the use of radionuclides, or radioactive tracers which are introduced into the body by way of an injection called a radiopharmaceutical. According to the type of radionuclide, the tracer will collect in one or more areas of the body. As the isotope emits radiation it is easily detected by a Geiger counter or scanning device so physicians are able to follow its path, checking the organs under surveillance. The radionuclide is flushed out of the body like any...