Limited scope of radiography practice
exam Complete Exam Questions and
Correct A+ Answers
what statements are correct regarding the link between radiation and genetic effects
Ans: The link has been demonstrated in animal studies .
Increased risk to humans cannot be predicted with respect to an individual.
Quiz The changes in kilovoltage (kVp) will result in the greatest reduction of patient dose, when
milliampere-seconds (mAs) is adjusted to compensate for the change
Ans: Increase kVp by 30%
Quiz The following image receptor (IR) system speeds will result in the lowest patient dose
Ans: Faster speed IR system
Quiz The primary purpose of using gonad shields
,Ans: reduce the likelihood of genetic effects
Quiz Are gonad shields
Ans: Contact and shadow
Quiz gonad shielding should be used
Ans: when the gonads are within 5 cm of the radiation field
Quiz the greatest cause of unnecessary radiation to patients that can be controlled by the
limited operator is
Ans: repeat exposures
Quiz the limited operator can reduce repeat exposure
Ans: clearly instructing patients
Quiz how does the x-ray beam restriction minimize patient exposure
Ans: it limits the radiation field to the area of interest
,Quiz what is the device that allows the limited operator to vary the size of the radiation field
Ans: collimator
Quiz how does filtration reduce patient exposure
Ans: removes longer-wavelength photons
Quiz The National Council on Radiation Protection and Measurements(NCRP) recommendation
for the amount of total filtration
Ans: 2.5 mm Al equiv
Quiz Three principal methods used to protect limited operators from unnecessary radiation
exposure
Ans: time, distance, and shielding
Quiz The following is not a type of personal radiation shielding
Ans: Shadow
Quiz personnel shielding must be worn on the rare occasion during which the limited operator
may need to remain in the radiographic room during an exposure to assist the patient in
maintaining the proper position. What is the source of the greatest radiation hazard under this
circumstance.?
, Ans: scattered radiation from the patient
Quiz the term for radiation the escapes from the x-ray tube housing
Ans: leakage radiation
Quiz why are limited operators prohibited from activities that result in direct exposure to the
primary x-ray beam
Ans: they are considered occupationally exposed individuals
Quiz distance, as a method used to limit operator exposure, means that
Ans: the operator should maximize the distance from the source during an exposure
Quiz shielding worn for personnel protection is designed to attenuate what source of exposure
Ans: scatter radiation
Quiz the acronym for a common type of personnel dosimeter
Ans: TLD
exam Complete Exam Questions and
Correct A+ Answers
what statements are correct regarding the link between radiation and genetic effects
Ans: The link has been demonstrated in animal studies .
Increased risk to humans cannot be predicted with respect to an individual.
Quiz The changes in kilovoltage (kVp) will result in the greatest reduction of patient dose, when
milliampere-seconds (mAs) is adjusted to compensate for the change
Ans: Increase kVp by 30%
Quiz The following image receptor (IR) system speeds will result in the lowest patient dose
Ans: Faster speed IR system
Quiz The primary purpose of using gonad shields
,Ans: reduce the likelihood of genetic effects
Quiz Are gonad shields
Ans: Contact and shadow
Quiz gonad shielding should be used
Ans: when the gonads are within 5 cm of the radiation field
Quiz the greatest cause of unnecessary radiation to patients that can be controlled by the
limited operator is
Ans: repeat exposures
Quiz the limited operator can reduce repeat exposure
Ans: clearly instructing patients
Quiz how does the x-ray beam restriction minimize patient exposure
Ans: it limits the radiation field to the area of interest
,Quiz what is the device that allows the limited operator to vary the size of the radiation field
Ans: collimator
Quiz how does filtration reduce patient exposure
Ans: removes longer-wavelength photons
Quiz The National Council on Radiation Protection and Measurements(NCRP) recommendation
for the amount of total filtration
Ans: 2.5 mm Al equiv
Quiz Three principal methods used to protect limited operators from unnecessary radiation
exposure
Ans: time, distance, and shielding
Quiz The following is not a type of personal radiation shielding
Ans: Shadow
Quiz personnel shielding must be worn on the rare occasion during which the limited operator
may need to remain in the radiographic room during an exposure to assist the patient in
maintaining the proper position. What is the source of the greatest radiation hazard under this
circumstance.?
, Ans: scattered radiation from the patient
Quiz the term for radiation the escapes from the x-ray tube housing
Ans: leakage radiation
Quiz why are limited operators prohibited from activities that result in direct exposure to the
primary x-ray beam
Ans: they are considered occupationally exposed individuals
Quiz distance, as a method used to limit operator exposure, means that
Ans: the operator should maximize the distance from the source during an exposure
Quiz shielding worn for personnel protection is designed to attenuate what source of exposure
Ans: scatter radiation
Quiz the acronym for a common type of personnel dosimeter
Ans: TLD
