Distance Is Key to Providing Protection During Fluoroscopy Because Radiation

Distance is key to providing protection during fluoroscopy because radiation exposure follows the inverse square law.(For example,the exposure at 2 meters from the source will be only one fourth as much as the exposure at 1 meter's distance.) When positioning the patient relative to the fluoroscopy image intensifier/C-arm,the patient should be placed as far away from the ___ and as close to the __as possible for optimal image quality and minimum radiation dose to the patient's body.

A) fluoroscope;lead shield
B) image intensifier;x-ray tube
C) x-ray tube;image intensifier
D) beam;radiologist

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