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Mosby's ARRT Chapter 3_ Practice Exam
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Mosby's ARRT Chapter 3_ Practice Exam
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Mosby's ARRT Chapter 3: Practice ExamA feature of fluoroscopic x-ray machines that automatically adjusts kVp and mA so as to
maintain image brightness for necessary image quality is called:
a. Automatic imaging
b. Automatic brightness control (ABC)
c. Automatic image processing
d. Constant exposure output - ANS-B
A readout on the fluoroscopic monitor that indicates air kerma striking the surface of the
patient is:
a. mA meter
b. DAP meter
c. ESD meter
d. kVp meter - ANS-B (dose area product meter)
According to the NCRP Report #116, the annual effective dose limit for radiography
students older than age 18 is:
a. 50 mSv
b. 10 mSv
c. 0.50 mSv
d. 0.05 mSv - ANS-A
According to the NCRP Report #116, the annual effective dose limit for the general
public, assuming infrequent exposure, is:
a. 5 mSv
b. 0.1 mSv
c. 10 mSv
d. 0.05 mSv - ANS-A
According to the NCRP Report #116, the annual occupational effective dose limit is:
a. 50 mSv
b. 10 mSv
c. 0.50 mSv
,d. 0.05 mSv - ANS-A
According to the NCRP Report #116, the occupational cumulative effective dose limit =
age in years x what dose?
a. 5 mSv
b. 0.1 mSv
c. 0.5 mSv
d. 10 mSv - ANS-D
According to the NCRP Report #116, what is the annual effective dose limit for the
general public, assuming frequent exposure?
a. 5 mSv
b. 1.0 mSv
c. 0.5 mSv
d. 0.05 mSv - ANS-B
According to the NCRP Report #116, what is the annual effective occupational dose
limit for the lens of the eye?
a. 1.5 mSv
b. 1.0 mSv
c. 100 mSv
d. 150 mSv - ANS-D
According to the NCRP Report #116, what is the embryo or fetus equivalent dose limit
for gestation?
a. 5 mSv
b. 10 mSv
c. 0.5 mSv
d. 0.05 mSv - ANS-A
According to the NCRP Report #116, what is the embryo or fetus equivalent dose limit
per month?
a. 0.5 mSv
b. 0.1 mSv
c. 5 mSv
, d. 0.05 mSv - ANS-A
Added tube filtration should be adjusted by the radiographer:
a. To harden the x-ray beam
b. To remove the soft rays from the x-ray beam
c. To exercise radiation protection
d. Never - ANS-D
ALARA is an acronym for:
a. As long as reasonably achievable
b. As little as reasonably achievable
c. As long as radiologist allows
d. A radiation protection concept that encourages radiation users to keep the dose to
the patient as low as reasonably achievable - ANS-D
Blood count can be depressed with a whole body dose of:
a. 0.25 mSv
b. 25 mSv
c. 1 Sv
d. 10 Sv - ANS-A
Cell radiosensitivity is described by the:
a. Inverse square law
b. Law of Bergonie and Tribondeau
c. Reciprocity Law
d. Ohm's Law - ANS-B (states that cells are most radiosensitive when they are
immature, undifferentiated, and rapidly dividing)
Cells are most radiosensitive when:
a. Fully oxygenated
b. Deoxygenated
c. Slowly dividing
d. Near the skin - ANS-A (This is known as oxygen enhancement ratio)
Cells that are least sensitive to radiation exposure include:
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