MEDICINE
RADIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the patient is a child.
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the patient has a handicap.
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no film holder is available
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the patient or parent grants permission
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It is never acceptable for the operator to hold the film during exposure.
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Detailed explanation-1: -If necessary it should be held by the patient, but only when it cannot otherwise be kept in position. If the patient can not hold it, and a comforter/carer must be involved, then this should be done using forceps or other device (eg., a specifically designed dental film holder) so that fingers are not in primary beam.
Detailed explanation-2: -Lead aprons are the most effective personal radiation protection means and should be worn by everyone in a fluoroscopy room (except the patient).
Detailed explanation-3: -Place a protective apron and/or a thyroid collar on the patient. Use rectangular collimation to reduce radiation to the patient. Stand behind a shield or at least six feet from the X-‐ray source, and out of the path of the primary beam. Give warning before pressing exposure button to protect co-‐workers and patients.
Detailed explanation-4: -If a protective barrier is not available, the operator should be positioned at least six feet from the x-ray tube head at an angle from 90 degrees to 135 degrees to the central ray of the x-ray beam. Six feet (2 m) is considered safe as long as the operator is not positioned in the path of the primary x-ray beam.