Term
The cord leading to the exposure switch of a mobile radiographic
unit should be long enough to permit the radiographer to stand at
least _____ from the patient, the x-ray tube, and the useful beam to
reduce occupational exposure.
a) 1 m (3 feet)
b) 2 m (6 feet)
c) 3 m (9 feet)
d) 5 m (15 feet)
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D B
C A
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2 of 101
Term
When a pregnant patient must undergo a radiographic examination,
radiation exposure can be minimized by:
a) selecting technical exposure factors that are appropriate for the
part of the body to be radiographed
b) opening the x-ray beam collimator as wide as possible to ensure
adequate coverage of the image receptor
c) adequately collimating the x-ray beam to include only the
anatomical area of interest and shielding the lower abdomen and
pelvis when this area does not need to be included in the area to be
irradiated
d) A and C
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D B
C A
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3 of 101
Term
,Which of the following methods and devices reduce the
radiographer's exposure during a fluoroscopic examination?
1. proper beam collimation
2. control of exposure factors
3. gonadal shielding of the patient
a) 1 only
b) 2 only
c) 3 only
d) 1 and 2
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B D
C A
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4 of 101
Term
Which of the following statements is true?
a) Radiographers may stand in the useful bean to restrain a patient
during a difficult radiologic procedure provided that a protective
apron is worn.
b) Nurses, orderlies, relatives, or friends may stand in the useful
beam to restrain a patient during a difficult radiologic procedure,
, provided that a protective apron is worn.
c) Pregnant females may stand in the useful beam to restrain a
patient during a difficult radiologic procedure provided that a
protective apron is worn.
d) Radiographers should never stand in the useful beam to restrain a
patient during a radiographic exposure.
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A C
D B
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5 of 101
Term
If the radiation dose 6 feet from the x-ray table is 5 R, what is the
dose at a distance of 3 feet?
a) 20 R
b) 10 R
c) 1.25 R
d) 2.5 R
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