A radiologic technologist must complete a wide variety of tasks every day. These tasks include setting up MRI machines, setting up X-ray machines, setting up CAT scan machines, setting up ultrasound machines, and setting up a variety of other radiologic equipment. Radiologic technologists are also required to help patients participate in these exams. The technologists also operate these machines; however, radiologic technologists do not make any judgements based on the images they obtain. They simply report these images to the radiologist. The radiologist, not the radiologic technician, is the one who analyzes the data. Radiologic technicians are required to gather high-quality images and data, though. A radiologic technologist must be trained to recognize what is a clear, high-quality image and what is not. They must also be able to answer simple questions that patients may have about the procedure, and help patients prepare for the procedure. For example, they must make sure that patients remove all of their jewelry prior to a CAT scan. They must also warn patients about potential risks and dangers to their health. They must work to protect patients from any unneccessary risks to their health by providing a lead sheet, when necessary, and taking any other appropriate measures.