Radiation Protection Exam with Complete
Solutions| Latest Update
Where is the safest place to stand inside the fluoroscopy room? behind the doctor
When are fetuses most sensitive to high does of ionizing radiation? during the first three
months of gestation
What does effective fair management of pregnant radiation workers require? the balance
of the rights of the expectant mother to pursue her career without discrimination based on sex,
the protection of the fetus, the needs of the employer
Equivalent dose limits to an embryo/fetus 0.5mSv per month and 5mSv during gestation
Fetal dose limits only apply if ________ the employer is informed of the pregnancy
Collimation Rule Should limit x-ray field to only area of interest and borders should be
visible on all four sides of the IR
Accurate collimation reduces patient exposure by limiting the size and shape of the x-ray
field to the area of interest
Safety standards require the light field and x-ray field to be within _____ of the selected SID
2%
, How does close collimation reduce patient dose? the volume of tissue directly irradiated is
diminished
the amount of accompany scattered radiation is decreased
What does manual collimation cause? a dramatic drop off in tissue dose as distance from
the border of the collimated x-ray field is increased
PBL positive beam limitations
PBL automatically adjusts _____________ the useful x-ray beam to the size of the image
receptor
What can PBL be over-ridden with? A key, but should only be over-ridden under special
circumstances
What shield is most commonly used for patients in the recumbent position? flat gonadal
shields
What should gonadal shielding be considered for? all patients, especially towards children
and adults of reproductive age
When is a gonadal shield necessary? when the organ of concern lays within or near the
primary beam
Solutions| Latest Update
Where is the safest place to stand inside the fluoroscopy room? behind the doctor
When are fetuses most sensitive to high does of ionizing radiation? during the first three
months of gestation
What does effective fair management of pregnant radiation workers require? the balance
of the rights of the expectant mother to pursue her career without discrimination based on sex,
the protection of the fetus, the needs of the employer
Equivalent dose limits to an embryo/fetus 0.5mSv per month and 5mSv during gestation
Fetal dose limits only apply if ________ the employer is informed of the pregnancy
Collimation Rule Should limit x-ray field to only area of interest and borders should be
visible on all four sides of the IR
Accurate collimation reduces patient exposure by limiting the size and shape of the x-ray
field to the area of interest
Safety standards require the light field and x-ray field to be within _____ of the selected SID
2%
, How does close collimation reduce patient dose? the volume of tissue directly irradiated is
diminished
the amount of accompany scattered radiation is decreased
What does manual collimation cause? a dramatic drop off in tissue dose as distance from
the border of the collimated x-ray field is increased
PBL positive beam limitations
PBL automatically adjusts _____________ the useful x-ray beam to the size of the image
receptor
What can PBL be over-ridden with? A key, but should only be over-ridden under special
circumstances
What shield is most commonly used for patients in the recumbent position? flat gonadal
shields
What should gonadal shielding be considered for? all patients, especially towards children
and adults of reproductive age
When is a gonadal shield necessary? when the organ of concern lays within or near the
primary beam
