ARRT Registry Review - Radiation
Protection & Biology Exam Questions
& Answers (Grade A+)
Radiation -
correct answer ✅energy in transit from one location to another; a
transfer of energy that results from either a change occurring
naturally within an atom or a process caused by the interaction of a
particle with an atom
Ionizing Radiation -
correct answer ✅radiation that produces positively and negatively
charged particles (ions) when passing through matter
Attenuation -
correct answer ✅any process that decreases the intensity of the
primary photon beam directed toward some destination; total
reduction in the number of x-rays remaining in a beam after
penetration through a given thickness of tissue
Absorption -
correct answer ✅transference of energy from an x-ray beam to the
atoms or molecules of the matter through which it passes
2.95 mSv (1.98 mSv from radon & .97 mSv from cosmic/terrestrial).
-
,ARRT Registry Review - Radiation
Protection & Biology Exam Questions
& Answers (Grade A+)
correct answer ✅Exposure to average U.S. citizen from natural
radiation annually?
.65 mSv (.4 mSv from medical/dental, .14 from nuclear medicine,
and .11mSv from consumer products). -
correct answer ✅Exposure to average U.S. citizen from man made
radiation annually?
3.6 mSv (2.95 from natural, .65 mSv from man made) -
correct answer ✅Total annual exposure to average U.S. citizen?
Lumbar spine -
correct answer ✅Nonfluoro exam with greatest gonadal dose
As low as reasonably achievable -
correct answer ✅ALARA
NCRP Report #116 -
correct answer ✅Effective Absorbed Dose Equivalent System
includes determination of effective dose equivalent for "all"
, ARRT Registry Review - Radiation
Protection & Biology Exam Questions
& Answers (Grade A+)
radiation vulnerable organs, not just critical organs as previously
reported.
age in years x 10 mSv -
correct answer ✅Cumulative Absorbed Dose Equivalent (internal
and external) =
50 mSv -
correct answer ✅Annual Effective dose limit for occupational
exposure?
150 mSv -
correct answer ✅Annual occupational dose limit for lens of the
eye
500 mSv -
correct answer ✅Annual occupational dose limit for hands and
feet
Protection & Biology Exam Questions
& Answers (Grade A+)
Radiation -
correct answer ✅energy in transit from one location to another; a
transfer of energy that results from either a change occurring
naturally within an atom or a process caused by the interaction of a
particle with an atom
Ionizing Radiation -
correct answer ✅radiation that produces positively and negatively
charged particles (ions) when passing through matter
Attenuation -
correct answer ✅any process that decreases the intensity of the
primary photon beam directed toward some destination; total
reduction in the number of x-rays remaining in a beam after
penetration through a given thickness of tissue
Absorption -
correct answer ✅transference of energy from an x-ray beam to the
atoms or molecules of the matter through which it passes
2.95 mSv (1.98 mSv from radon & .97 mSv from cosmic/terrestrial).
-
,ARRT Registry Review - Radiation
Protection & Biology Exam Questions
& Answers (Grade A+)
correct answer ✅Exposure to average U.S. citizen from natural
radiation annually?
.65 mSv (.4 mSv from medical/dental, .14 from nuclear medicine,
and .11mSv from consumer products). -
correct answer ✅Exposure to average U.S. citizen from man made
radiation annually?
3.6 mSv (2.95 from natural, .65 mSv from man made) -
correct answer ✅Total annual exposure to average U.S. citizen?
Lumbar spine -
correct answer ✅Nonfluoro exam with greatest gonadal dose
As low as reasonably achievable -
correct answer ✅ALARA
NCRP Report #116 -
correct answer ✅Effective Absorbed Dose Equivalent System
includes determination of effective dose equivalent for "all"
, ARRT Registry Review - Radiation
Protection & Biology Exam Questions
& Answers (Grade A+)
radiation vulnerable organs, not just critical organs as previously
reported.
age in years x 10 mSv -
correct answer ✅Cumulative Absorbed Dose Equivalent (internal
and external) =
50 mSv -
correct answer ✅Annual Effective dose limit for occupational
exposure?
150 mSv -
correct answer ✅Annual occupational dose limit for lens of the
eye
500 mSv -
correct answer ✅Annual occupational dose limit for hands and
feet
