RADT 1200 – CH 12 EXAM QUESTIONS
AND ANSWERS
Patient protection during a diagnostic x-ray procedure should begin with _______ -
Answer- clear, concise instruction
Why are immobilization devices sometimes used during radiographic exams? -
Answer- to minimize patient motion
Identify the two types of patient motion - Answer- 1) Voluntary
2) Involuntary
What technical factor change can reduce the effects of involuntary motion? -
Answer- shortening the length of exposure time
When should lead shielding be used when exposing a patient to radiation? -
Answer- always
When should gonadal shielding not be used? - Answer- when it will not comprise
the diagnostic value of the examination
When should gonadal shielding be used? - Answer- to protect the reproductive
organs from exposure to the useful beam when these organs are within approx. 5
cm of a properly collimated beam
When comparing female and male reproductive parts, which of the two receives
more exposure during a given radiographic exam? - Answer- Female, receives
about 3 times more exposure
For female patients, the use of a flat contact shield places over the reproductive
organs reduces exposure by about _____%. In males, exposure may be reduced by
as much as ____% to ___% when the gonads are covered with a contact shield -
Answer- 50 ; 90 - 95
Identify the four basic types of gonadal shielding devices: - Answer- 1) Flat
Contact shield
2) Shadow shields
3) shaped contact shields
4) clear lead shields
During a traditional fluoroscopic examination, where should the flat contact shielding
be places to properly protect the patient - Answer- under the patient
AND ANSWERS
Patient protection during a diagnostic x-ray procedure should begin with _______ -
Answer- clear, concise instruction
Why are immobilization devices sometimes used during radiographic exams? -
Answer- to minimize patient motion
Identify the two types of patient motion - Answer- 1) Voluntary
2) Involuntary
What technical factor change can reduce the effects of involuntary motion? -
Answer- shortening the length of exposure time
When should lead shielding be used when exposing a patient to radiation? -
Answer- always
When should gonadal shielding not be used? - Answer- when it will not comprise
the diagnostic value of the examination
When should gonadal shielding be used? - Answer- to protect the reproductive
organs from exposure to the useful beam when these organs are within approx. 5
cm of a properly collimated beam
When comparing female and male reproductive parts, which of the two receives
more exposure during a given radiographic exam? - Answer- Female, receives
about 3 times more exposure
For female patients, the use of a flat contact shield places over the reproductive
organs reduces exposure by about _____%. In males, exposure may be reduced by
as much as ____% to ___% when the gonads are covered with a contact shield -
Answer- 50 ; 90 - 95
Identify the four basic types of gonadal shielding devices: - Answer- 1) Flat
Contact shield
2) Shadow shields
3) shaped contact shields
4) clear lead shields
During a traditional fluoroscopic examination, where should the flat contact shielding
be places to properly protect the patient - Answer- under the patient
