Operators should use the timing device to indicate a preset time, which will serve as a reminder to keep it as short as possible. Use the shortest possible distance from the image intensifier to the patient. The fluoroscopist should wear a thyroid shield, leaded gloves, and glasses to reduce exposure to the thyroid, extremities, and eyes. If proper care is not taken, mobile equipment has a greater potential than standard diagnostic equipment for unnecessary radiation exposure of personnel and patients. In mobile units, variations can occur in exposures due to line voltage fluctuations which can affect the output of the machine.
Distance is often the best possible protection from radiation.
It is important that only individuals necessary for the diagnostic examination be in the vicinity. Other individuals who are required to remain in the room should wear protective clothing or should be located behind a protective shield. Wear protective garments . In mobile or portable radiographic systems, ensure that the source to skin distance is not less than 30 centimeters. D. Proper Operating Procedures for Computed Tomography Units 1.