Distance Is Key to Providing Protection During Fluoroscopy,because Radiation Exposure

question 11

Multiple Choice

Distance is key to providing protection during fluoroscopy,because radiation exposure follows the inverse square law.(e.g.,the exposure at 2 m from the source will be only one-fourth as much as the exposure at 1 m 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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