©FYNDLAY 2024/2025 ALL RIGHTS RESERVED 8:22PM. A+
GXMO STUDY GUIDE II 100% Verified And
Updated 2025
The link has been demonstrated in animal studies; Increased risk to humans cannot be
predicted with respect to an individual - Answer✔A link between radiation dose and genetic
effects
Increase kVP by 30% - Answer✔____ will result in the greatest reduction of patient dose, when
millimpere-seconds (mAs) is adjusted to compensate for the change?
Faster speed IR system - Answer✔___ will result in the lowest patient dose?
Reduce the likelihood of genetic effects - Answer✔What is the primary purpose of using gonad
shields during radiography
Contact; Shadow - Answer✔Types of gonad shields
When the gonads are within 5 cm of the radiation field - Answer✔When should gonad shielding
be used?
repeat exposures - Answer✔The greatest cause of unnecessary radiation to patients that can be
controlled by the limited operator is:
clearly instructing patients - Answer✔The limited operator can reduce repeat exposures by:
Limits the radiation field to the area of interest - Answer✔How does x-ray beam restriction
minimize patient exposure?
Collimator - Answer✔What is the device that allows the limited operator to vary the size of the
radiation field
Removes longer-wavelength photons - Answer✔How does filtration reduce patient exposure
2.5 mm Al equiv - Answer✔What is the National Council on Radiation Protection and
Measurements (NCRP) recommendation for the amount of total filtration?
Time, distance, shielding - Answer✔What are the three principal methods used to protect
limited operators from unnnecssary radiation exposure?
Apron, Glove, Thyroid shield - Answer✔What are types of personnel radiation shielding
1|Page
, ©FYNDLAY 2024/2025 ALL RIGHTS RESERVED 8:22PM. A+
Scattered radiation from the patient - Answer✔Personnel shielding must be worn on the rare
occasion on which the limited operator may need to remain in the radiographic room during an
exposure to assist the patient in maintianing the proper position. What is the source of the
greatest radiation hazard under this circumstance?
Leakage - Answer✔What is the term for radiation that escapes from the x-ray tube housing
They are considered occupationally exposed individuals - Answer✔Why are limited operators
prohibited from activities that result in direct exposure to the primary x-ray beam
the operator should maximize the distance from the source during an exposure -
Answer✔Distance as a method used to limit operator exposure, means that:
Scatter - Answer✔Shielding worn for personnel protection is designed to attenuate what
source of exposure
TLD - Answer✔Which of the following is an acronym for a common type of personnel dosimeter
Badge should be worn in the region of the collar on the anterior surface of the body and
outside the lead apron, if worn. - Answer✔What is the recommended placement for a
personnel dosimeter on the body of the limited operator
5.0 rem - Answer✔What is the NCRP recommended annual effective dose limite for
occupational exposure
0.05 rem - Answer✔What is the NCRP recommended monthly effective (or equivalent) dose
limit to the fetus for a pregnant worker?
10% - Answer✔Radiation monitoring of personnel is required when what percentage of the
annual occupational effective dose limit is likely to be received
Roentgen - Answer✔What is the conventional (British system) radiation unit to express
radiation intensity in air?
rem - Answer✔The conventional (British system) unit commonly used to report occupational
dose to radiation workers in the United States is the
Rad - Answer✔What is the conventional (British system) radiation unit of absorbed dose
Embryonic tissue - Answer✔According to the Bergonie-Tribondeau law, which of the following
types of cells are most radiosensitive?
Stochastic effects - Answer✔Which of the following types of radiation effects is typical of the
risk to a patient undergoing a diagnostic x-ray examination?
Short-term somatic effects; Nonstochastic effects - Answer✔What occurs with high radiation
doses.
Reddening of the skin caused by high radiation dose - Answer✔What is erythema?
2|Page
GXMO STUDY GUIDE II 100% Verified And
Updated 2025
The link has been demonstrated in animal studies; Increased risk to humans cannot be
predicted with respect to an individual - Answer✔A link between radiation dose and genetic
effects
Increase kVP by 30% - Answer✔____ will result in the greatest reduction of patient dose, when
millimpere-seconds (mAs) is adjusted to compensate for the change?
Faster speed IR system - Answer✔___ will result in the lowest patient dose?
Reduce the likelihood of genetic effects - Answer✔What is the primary purpose of using gonad
shields during radiography
Contact; Shadow - Answer✔Types of gonad shields
When the gonads are within 5 cm of the radiation field - Answer✔When should gonad shielding
be used?
repeat exposures - Answer✔The greatest cause of unnecessary radiation to patients that can be
controlled by the limited operator is:
clearly instructing patients - Answer✔The limited operator can reduce repeat exposures by:
Limits the radiation field to the area of interest - Answer✔How does x-ray beam restriction
minimize patient exposure?
Collimator - Answer✔What is the device that allows the limited operator to vary the size of the
radiation field
Removes longer-wavelength photons - Answer✔How does filtration reduce patient exposure
2.5 mm Al equiv - Answer✔What is the National Council on Radiation Protection and
Measurements (NCRP) recommendation for the amount of total filtration?
Time, distance, shielding - Answer✔What are the three principal methods used to protect
limited operators from unnnecssary radiation exposure?
Apron, Glove, Thyroid shield - Answer✔What are types of personnel radiation shielding
1|Page
, ©FYNDLAY 2024/2025 ALL RIGHTS RESERVED 8:22PM. A+
Scattered radiation from the patient - Answer✔Personnel shielding must be worn on the rare
occasion on which the limited operator may need to remain in the radiographic room during an
exposure to assist the patient in maintianing the proper position. What is the source of the
greatest radiation hazard under this circumstance?
Leakage - Answer✔What is the term for radiation that escapes from the x-ray tube housing
They are considered occupationally exposed individuals - Answer✔Why are limited operators
prohibited from activities that result in direct exposure to the primary x-ray beam
the operator should maximize the distance from the source during an exposure -
Answer✔Distance as a method used to limit operator exposure, means that:
Scatter - Answer✔Shielding worn for personnel protection is designed to attenuate what
source of exposure
TLD - Answer✔Which of the following is an acronym for a common type of personnel dosimeter
Badge should be worn in the region of the collar on the anterior surface of the body and
outside the lead apron, if worn. - Answer✔What is the recommended placement for a
personnel dosimeter on the body of the limited operator
5.0 rem - Answer✔What is the NCRP recommended annual effective dose limite for
occupational exposure
0.05 rem - Answer✔What is the NCRP recommended monthly effective (or equivalent) dose
limit to the fetus for a pregnant worker?
10% - Answer✔Radiation monitoring of personnel is required when what percentage of the
annual occupational effective dose limit is likely to be received
Roentgen - Answer✔What is the conventional (British system) radiation unit to express
radiation intensity in air?
rem - Answer✔The conventional (British system) unit commonly used to report occupational
dose to radiation workers in the United States is the
Rad - Answer✔What is the conventional (British system) radiation unit of absorbed dose
Embryonic tissue - Answer✔According to the Bergonie-Tribondeau law, which of the following
types of cells are most radiosensitive?
Stochastic effects - Answer✔Which of the following types of radiation effects is typical of the
risk to a patient undergoing a diagnostic x-ray examination?
Short-term somatic effects; Nonstochastic effects - Answer✔What occurs with high radiation
doses.
Reddening of the skin caused by high radiation dose - Answer✔What is erythema?
2|Page
