1|Page
LMRT-RADIOGRAPHY ESSENTIALS WITH
QUESTIONS AND ANSWERS 100%
VERIFIED
Which of the following changes in (KVP) will result in the greatest
reduction of patient dose, when (MAS) is adjusted to compensate for
the change? - correct answer_ Increase kVp by 30%
Which of the following (IR) system speeds will result in the lowest
patient dose? - correct answer_ Faster speed IR system
What is the primary purpose of using gonad shields during
radiography? - correct answer_ Reduce the likelihood of genetic effects
Contact & shadow are two types of gonad shield - correct answer_
TRUE
When should gonad shields be used? - correct answer_ When the
gonads are within 5cm of the radiation field
,2|Page
The greatest cause of unnecessary radiation to patients that can be
controlled by the limited operator are: - correct answer_ repeat
exposures
The limited operator can reduce repeat exposures by: - correct answer_
clearly instructing patients
How does x-ray beam restriction minimize patient exposure - correct
answer_ It limits the radiation field to the area of interest
What is the device that allows the limited operator to vary the size of
the radiation field - correct answer_ Collimator
How does filtration reduce patient exposure - correct answer_ Removes
longer wavelength photons
,3|Page
What is the National Council on Radiation Protection and
Measurements (NCRP) recommendation for the amount of total
filtration - correct answer_ 2.5mm Al Equivalent
What are the three principal methods used to protect limited operators
from unnecessary radiation exposure? - correct answer_ 1. Time
2. Distance
3. Shielding
Which of the following is NOT a type of personnel radiation shielding? -
correct answer_ a. Apron
b. Glove
c. Thyroid shield
d. Shadow******** CORRECT
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? - correct answer_ Scattered radiation from the patient
, 4|Page
What is the term from radiation that escapes from the x-ray tube
housing? - correct answer_ leakage radiation
Why are limited operators prohibited from activities that result in direct
exposure to the primary x-ray beam? - correct answer_ They are
considered occupationally exposed individuals
Distance, as a method used to limit operator exposure, means that: -
correct answer_ the operator should maximize the distance from the
source during an exposure.
Shielding worn for personnel protection is designed to attenuate what
source of exposure - correct answer_ scatter radiation
Which of the following is an acronym for a common type of personnel
dosimeter - correct answer_ TLD
LMRT-RADIOGRAPHY ESSENTIALS WITH
QUESTIONS AND ANSWERS 100%
VERIFIED
Which of the following changes in (KVP) will result in the greatest
reduction of patient dose, when (MAS) is adjusted to compensate for
the change? - correct answer_ Increase kVp by 30%
Which of the following (IR) system speeds will result in the lowest
patient dose? - correct answer_ Faster speed IR system
What is the primary purpose of using gonad shields during
radiography? - correct answer_ Reduce the likelihood of genetic effects
Contact & shadow are two types of gonad shield - correct answer_
TRUE
When should gonad shields be used? - correct answer_ When the
gonads are within 5cm of the radiation field
,2|Page
The greatest cause of unnecessary radiation to patients that can be
controlled by the limited operator are: - correct answer_ repeat
exposures
The limited operator can reduce repeat exposures by: - correct answer_
clearly instructing patients
How does x-ray beam restriction minimize patient exposure - correct
answer_ It limits the radiation field to the area of interest
What is the device that allows the limited operator to vary the size of
the radiation field - correct answer_ Collimator
How does filtration reduce patient exposure - correct answer_ Removes
longer wavelength photons
,3|Page
What is the National Council on Radiation Protection and
Measurements (NCRP) recommendation for the amount of total
filtration - correct answer_ 2.5mm Al Equivalent
What are the three principal methods used to protect limited operators
from unnecessary radiation exposure? - correct answer_ 1. Time
2. Distance
3. Shielding
Which of the following is NOT a type of personnel radiation shielding? -
correct answer_ a. Apron
b. Glove
c. Thyroid shield
d. Shadow******** CORRECT
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? - correct answer_ Scattered radiation from the patient
, 4|Page
What is the term from radiation that escapes from the x-ray tube
housing? - correct answer_ leakage radiation
Why are limited operators prohibited from activities that result in direct
exposure to the primary x-ray beam? - correct answer_ They are
considered occupationally exposed individuals
Distance, as a method used to limit operator exposure, means that: -
correct answer_ the operator should maximize the distance from the
source during an exposure.
Shielding worn for personnel protection is designed to attenuate what
source of exposure - correct answer_ scatter radiation
Which of the following is an acronym for a common type of personnel
dosimeter - correct answer_ TLD
