Medical Radiography | Latest 2026 Update |
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‣ Which of the following are functions and/or responsibilities of the United States
Occupational Safety and Health Administration
(OSHA)?
1. Functions as a monitoring agency in places of employment, predominantly in industry
2. Regulates occupational exposure to radiation through Part 1910 of Title 29 of the
U.S. Code of Federal Regulations (29 CFR
1910)
3. Responsible for regulations concerning an employee's "right to know" with regard to
hazards in the workplace
a. 1 and 2 only
b. 1 and 3 only
c. 2 and 3 only
d. 1, 2, and 3 -✓✓D
‣ Which of the following groups is run by the government of Japan, primarily to study
Japanese atomic bomb survivors?
a. National Research Council Committee on the Biological Effects of Ionizing
Radiation
b. International Commission on Radiological Protection
c. Radiation Effects Research Foundation
d. Nuclear Regulatory Commission -✓✓C
‣ Epidemiologic studies of atomic bomb survivors exposed in utero have provided
conclusive evidence of a dose-dependent increase
in the incidence of severe intellectual disability for fetal doses greater than
approximately
a. 0.1 Sv.
b. 0.2 Sv.
c. 0.3 Sv.
d. 0.4 Sv. -✓✓D
‣ Determine the cumulative effective dose (CumEfD) limit to the whole body of an
occupationally exposed person who is 46 years
old.
a. 4.6 mSv
b. 46 mSv
c. 460 mSv
, d. 4600 mSv -✓✓C
‣ Revised concepts of radiation exposure and risk have brought about more recent
changes in NCRP recommendations for limits on
exposure to ionizing radiation. Because many conflicting views exist on assessing the
risk of cancer induction from low-level
radiation exposure, the trend has been to
a. create more rigorous radiation protection standards.
b. reduce rigorous radiation protection standards.
c. eliminate radiation protection standards.
d. leave radiation protection standards the same as they have been for the last 20
years. -✓✓A
‣ The main function of the Nuclear Regulatory Commission (NRC) is to
1. inspect imaging facilities.
2. oversee the nuclear energy industry.
3. regulate imaging facilities.
a. 1 only
b. 2 only
c. 3 only
d. 1, 2, and 3 -✓✓B
‣ The effective dose (EfD) limiting system supersedes
a. all Occupational Safety and Health Administration (OSHA) regulations.
b. all Nuclear Regulatory Commission (NRC) regulations.
c. the maximum permissible dose (MPD) system.
d. the Consumer-Patient Radiation Health and Safety Act of 1981. -✓✓C
‣ The ALARA concept adopts an extremely conservative model with respect to the
relationship between
a. health care education and radiation research.
b. ionizing and nonionizing radiation.
c. ionizing radiation and potential risk.
d. radiation dose and health care spending. -✓✓C
‣ If a certain dose of radiation produces a skin burn, a higher dose of radiation will
cause the skin burn to be more severe; however, a
dose below the threshold level for skin burn will
a. demonstrate this effect to a much greater degree.
b. demonstrate this effect to moderate degree.
c. demonstrate this effect to a lesser degree.
d. not demonstrate the effect. -✓✓D
‣ The United Nations Scientific Committee on the Effects of Atomic Radiation
(UNSCEAR) evaluates human and environmental