Diagnostic radiology has evolved immensely since the discovery of the simple x-ray beam. It has become a valuable screening and clinical diagnosis tool for physicians. In this chapter, you will learn the basics of noninvasive and invasive radiology as well as your role as a medical assistant in this testing. Safety issues for the administration of radiologic testing are discussed, as is the proper handling and storage of the actual films. In addition, you learn about preparing and instructing patients for the more common radiology procedures.