Management of Imaging Personnel
Radiation Dose During Diagnostic
Procedures Exam ACTUAL QUESTIONS
AND CORRECT ANSWERS
scatter - CORRECT ANSWERS✅✅What poses the greatest occupational hazard to the RT?
patient - CORRECT ANSWERS✅✅What is the source of scatter in radiation exams (fluoro,
mobile, diagnostic)?
at a 90-degree angle and at a distance of 3 feet (1 m) - CORRECT ANSWERS✅✅Where
should you stand in relation to the patient during a radiation exam?
0.1 % - CORRECT ANSWERS✅✅At a 90 degree angle and a distance of 3 feet from the
patient, the scattered x-ray intensity is approx. __________ of the original intensity of the
primary beam.
in primary beam - CORRECT ANSWERS✅✅Where should you never stand during a
radiation exam?
- apply cardinal principles
- collimate the beam - CORRECT ANSWERS✅✅How can you apply the ALARA concept?
low - CORRECT ANSWERS✅✅Keep effective dose limits as __________ as possible.
1. Avoid Repeat Examinations
2. The Patient as a source of scattered radiation
3. scattered radiation occupational hazard
4. filtration of the diagnostic beam
5. protective apparel
, 6. technical exposure factors - CORRECT ANSWERS✅✅Dose reduction Methods:
NO - CORRECT ANSWERS✅✅Should the RT hold patients?
use mechanical restraining devices - CORRECT ANSWERS✅✅First choice for patient
restraint
use family member or friend of patient; provide shielding and instructions for holding; other
hosp personnel shouldn't be used to hold routinely - CORRECT ANSWERS✅✅Last resort
for patient restraint
NCRP - CORRECT ANSWERS✅✅In 1954, who put forth the principle that radiation
exposures should be kept "as low as reasonably achievable" (ALARA) with consideration for
economic and societal factors?
ALARA - CORRECT ANSWERS✅✅concept that is accepted by all regulatory agencies
ALARA concept - CORRECT ANSWERS✅✅adopts an extremely conservative model with
respect to the relationship between ionizing radiation and potential risk
occupational risk - CORRECT ANSWERS✅✅the risk to a radiographer from radiation
exposure may be equated with occupational risk in other industries that are generally
considered reasonably safe
NCRP - CORRECT ANSWERS✅✅proposed that radiation protection programs for
radiation workers be designed to prevent individual workers from having a total external plus
internal cumulative EfD in excess of their age in years times 10 mSv
inverse square law - CORRECT ANSWERS✅✅implies that if a radiographer moves closer
to a source of radiation, the radiation exposure to the radiographer drastically increases
lead and concrete - CORRECT ANSWERS✅✅Most common materials of structural
protective barriers
Radiation Dose During Diagnostic
Procedures Exam ACTUAL QUESTIONS
AND CORRECT ANSWERS
scatter - CORRECT ANSWERS✅✅What poses the greatest occupational hazard to the RT?
patient - CORRECT ANSWERS✅✅What is the source of scatter in radiation exams (fluoro,
mobile, diagnostic)?
at a 90-degree angle and at a distance of 3 feet (1 m) - CORRECT ANSWERS✅✅Where
should you stand in relation to the patient during a radiation exam?
0.1 % - CORRECT ANSWERS✅✅At a 90 degree angle and a distance of 3 feet from the
patient, the scattered x-ray intensity is approx. __________ of the original intensity of the
primary beam.
in primary beam - CORRECT ANSWERS✅✅Where should you never stand during a
radiation exam?
- apply cardinal principles
- collimate the beam - CORRECT ANSWERS✅✅How can you apply the ALARA concept?
low - CORRECT ANSWERS✅✅Keep effective dose limits as __________ as possible.
1. Avoid Repeat Examinations
2. The Patient as a source of scattered radiation
3. scattered radiation occupational hazard
4. filtration of the diagnostic beam
5. protective apparel
, 6. technical exposure factors - CORRECT ANSWERS✅✅Dose reduction Methods:
NO - CORRECT ANSWERS✅✅Should the RT hold patients?
use mechanical restraining devices - CORRECT ANSWERS✅✅First choice for patient
restraint
use family member or friend of patient; provide shielding and instructions for holding; other
hosp personnel shouldn't be used to hold routinely - CORRECT ANSWERS✅✅Last resort
for patient restraint
NCRP - CORRECT ANSWERS✅✅In 1954, who put forth the principle that radiation
exposures should be kept "as low as reasonably achievable" (ALARA) with consideration for
economic and societal factors?
ALARA - CORRECT ANSWERS✅✅concept that is accepted by all regulatory agencies
ALARA concept - CORRECT ANSWERS✅✅adopts an extremely conservative model with
respect to the relationship between ionizing radiation and potential risk
occupational risk - CORRECT ANSWERS✅✅the risk to a radiographer from radiation
exposure may be equated with occupational risk in other industries that are generally
considered reasonably safe
NCRP - CORRECT ANSWERS✅✅proposed that radiation protection programs for
radiation workers be designed to prevent individual workers from having a total external plus
internal cumulative EfD in excess of their age in years times 10 mSv
inverse square law - CORRECT ANSWERS✅✅implies that if a radiographer moves closer
to a source of radiation, the radiation exposure to the radiographer drastically increases
lead and concrete - CORRECT ANSWERS✅✅Most common materials of structural
protective barriers
