Rad 101 Final questions with complete
solutions
The radiation a person receives from the sun (cosmic radiation) is categorized as
a)
radioactivity.
b)
atmospheric radiation.
c)
medical background radiation.
d)
natural background radiation. - correct answer ✔✔D
With regard to the ALARA principle, the responsibility of the radiographer is to
a)
keep radiation exposures at the lowest levels possible.
b)
determine the risk-to-benefit relationship between ordered examinations and dose.
c)
obtain high-quality radiographs in an efficient manner.
d)
assess image quality as a function of dose. - correct answer ✔✔A
The dose equivalent limits for radiation workers are based on the radiation received from what
source(s)?
a)
Occupational exposure
b)
,Radiation fallout
c)
Background radiation
d)
Medical and dental radiography - correct answer ✔✔A
A given dose of radiation generally has the greatest potential for damage in tissues that have
a)
more rapidly dividing cells.
b)
the most mature.
c)
the largest cells.
d)
cells with the lowest cytoplasmic water content. - correct answer ✔✔A
Nausea is principally associated with the
a)
central nervous system syndrome.
b)
manifest stage.
c)
latent period.
d)
prodromal period. - correct answer ✔✔D
The material commonly used for shielding against radiation exposure in protective aprons and gloves is
a)
lead.
,b)
titanium.
c)
bismuth.
d)
barium impregnated vinyl. - correct answer ✔✔A
The photon interaction that results in the highest patient exposure is _____ interactions.
a)
classical scattering
b)
Compton
c)
photoelectric
d)
bremsstrahlung - correct answer ✔✔C
The law of Bergonie and Tribondeau states that cells are more radiosensitive if they are1. highly
mitotic.2. primitive and undifferentiated.3. mature cells.4. larger in size.5. nonnucleated.
a)
2, 3, and 5 only
b)
1 and 2 only
c)
1 only
d)
2, 4, and 5 only - correct answer ✔✔B
, In which of the following X-ray interactions with matter is the energy of the incident photon completely
absorbed?
a)
Bremsstrahlung interactions
b)
Compton scattering
c)
Characteristic interactions
d)
Photoelectric absorption - correct answer ✔✔D
Which action of ionizing radiation is most prevalent and most harmful to the human body?
a)
Indirect action
b)
Mitotic apoptosis
c)
Hormesis
d)
Direct action - correct answer ✔✔A
Acute radiation syndrome manifests in four major stages. In what order do these stages occur?
a)
Manifest stage, latent period, prodromal period, and recovery or death
b)
Latent period, prodromal period, manifest stage, and recovery or death
c)
Manifest stage, prodromal period, latent period, and recovery or death
d)
solutions
The radiation a person receives from the sun (cosmic radiation) is categorized as
a)
radioactivity.
b)
atmospheric radiation.
c)
medical background radiation.
d)
natural background radiation. - correct answer ✔✔D
With regard to the ALARA principle, the responsibility of the radiographer is to
a)
keep radiation exposures at the lowest levels possible.
b)
determine the risk-to-benefit relationship between ordered examinations and dose.
c)
obtain high-quality radiographs in an efficient manner.
d)
assess image quality as a function of dose. - correct answer ✔✔A
The dose equivalent limits for radiation workers are based on the radiation received from what
source(s)?
a)
Occupational exposure
b)
,Radiation fallout
c)
Background radiation
d)
Medical and dental radiography - correct answer ✔✔A
A given dose of radiation generally has the greatest potential for damage in tissues that have
a)
more rapidly dividing cells.
b)
the most mature.
c)
the largest cells.
d)
cells with the lowest cytoplasmic water content. - correct answer ✔✔A
Nausea is principally associated with the
a)
central nervous system syndrome.
b)
manifest stage.
c)
latent period.
d)
prodromal period. - correct answer ✔✔D
The material commonly used for shielding against radiation exposure in protective aprons and gloves is
a)
lead.
,b)
titanium.
c)
bismuth.
d)
barium impregnated vinyl. - correct answer ✔✔A
The photon interaction that results in the highest patient exposure is _____ interactions.
a)
classical scattering
b)
Compton
c)
photoelectric
d)
bremsstrahlung - correct answer ✔✔C
The law of Bergonie and Tribondeau states that cells are more radiosensitive if they are1. highly
mitotic.2. primitive and undifferentiated.3. mature cells.4. larger in size.5. nonnucleated.
a)
2, 3, and 5 only
b)
1 and 2 only
c)
1 only
d)
2, 4, and 5 only - correct answer ✔✔B
, In which of the following X-ray interactions with matter is the energy of the incident photon completely
absorbed?
a)
Bremsstrahlung interactions
b)
Compton scattering
c)
Characteristic interactions
d)
Photoelectric absorption - correct answer ✔✔D
Which action of ionizing radiation is most prevalent and most harmful to the human body?
a)
Indirect action
b)
Mitotic apoptosis
c)
Hormesis
d)
Direct action - correct answer ✔✔A
Acute radiation syndrome manifests in four major stages. In what order do these stages occur?
a)
Manifest stage, latent period, prodromal period, and recovery or death
b)
Latent period, prodromal period, manifest stage, and recovery or death
c)
Manifest stage, prodromal period, latent period, and recovery or death
d)
