1 | Page
LMRT State Review Questions and
Answers Latest 2026
Which of the following statements are correct regarding
the link between radiation dose and genetic effects?
1. The link has been demonstrated in human studies.
2. The link has been demonstrated in animal studies.
3. increased risk to humans cannot be predicted with
respect to an individual. Ans: 2 and 3 only
Which of the following changes in kilovoltage (KVP) will
result in the greatest reduction of patient dose, when
milliamperage-seconds (mAs) is adjusted to compensate
for the dosage?
A.) Decrease kVp by 30%
B.) Decrease kVp by 15%
C.) Increase kVp by 15%
D.) Increase kVp by 30% Ans: Increase kVp by 30%
Which of the following image receptor (IR) system speeds
will result in the lowest patient dose?
A.) slower speed IR system
© 2025 All rights reserved
, 2 | Page
B.) Faster speed IR system
C.) It does not matter; the IR system speed does not
affect the patient dose. Ans: Faster speed IR system
What is the primary purpose of using gonad shields
during radiography?
A.) Reduce the likelihood of genetic changes
B.) Reduce likelihood of somatic effects
C.) Protect patient modesty
D.) Demonstrate the location of the gonads in the image
Ans: Reduce the likelihood of genetic changes
Which one of the following are types of gonad shields?
1. Aperture
2. Contact
3. Shadow
A.) 1 and 2 only
B.) 1 and 3 only
C.) 2 and 3 only
D.) 1, 2, and 3 Ans: 2 and 3 only
© 2025 All rights reserved
, 3 | Page
When should gonad shielding be used?
A.) for all patients
B.) For all procedures
C.) when the gonads are within 10 cm of the radiation
field
D.) when the gonads are within 5 cm of the radiation field
Ans: when the gonads are within 5 cm of the radiation
field
The greatest cause of unnecessary radiation to patients
that can be controlled by the limited operator is:
A.) Patient condition
B.) Patient size
C.) Repeat exposure
D.) equipment malfunction Ans: Repeat exposure
The limited operator can reduce repeat exposures by:
A.) Accepting marginal images
B.) Clearly instructing patients
C.) increasing the source-image receptor distance (SID)
D.) optimizing the kVp Ans: Clearly instructing patients
© 2025 All rights reserved
, 4 | Page
How does x-ray beam restriction minimize patient
exposure?
A.) it limits radiation fog
B.) It limits the radiation field to the area of interest
C.) It limits the effect of patient motion
D.) It limits repeat exposure Ans: 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?
A.) Collimator
B.) Detent
C.) Filter
D.) Sheild Ans: Collimator
How does filtration reduce patient exposure?
A.) Removes the shorter-wavelength photons
B.) Removes longer wavelength photons
C.) Reduces the size of the radiation field
D.) Reduces the time of exposure Ans: Removes longer
wavelength photons
© 2025 All rights reserved
LMRT State Review Questions and
Answers Latest 2026
Which of the following statements are correct regarding
the link between radiation dose and genetic effects?
1. The link has been demonstrated in human studies.
2. The link has been demonstrated in animal studies.
3. increased risk to humans cannot be predicted with
respect to an individual. Ans: 2 and 3 only
Which of the following changes in kilovoltage (KVP) will
result in the greatest reduction of patient dose, when
milliamperage-seconds (mAs) is adjusted to compensate
for the dosage?
A.) Decrease kVp by 30%
B.) Decrease kVp by 15%
C.) Increase kVp by 15%
D.) Increase kVp by 30% Ans: Increase kVp by 30%
Which of the following image receptor (IR) system speeds
will result in the lowest patient dose?
A.) slower speed IR system
© 2025 All rights reserved
, 2 | Page
B.) Faster speed IR system
C.) It does not matter; the IR system speed does not
affect the patient dose. Ans: Faster speed IR system
What is the primary purpose of using gonad shields
during radiography?
A.) Reduce the likelihood of genetic changes
B.) Reduce likelihood of somatic effects
C.) Protect patient modesty
D.) Demonstrate the location of the gonads in the image
Ans: Reduce the likelihood of genetic changes
Which one of the following are types of gonad shields?
1. Aperture
2. Contact
3. Shadow
A.) 1 and 2 only
B.) 1 and 3 only
C.) 2 and 3 only
D.) 1, 2, and 3 Ans: 2 and 3 only
© 2025 All rights reserved
, 3 | Page
When should gonad shielding be used?
A.) for all patients
B.) For all procedures
C.) when the gonads are within 10 cm of the radiation
field
D.) when the gonads are within 5 cm of the radiation field
Ans: when the gonads are within 5 cm of the radiation
field
The greatest cause of unnecessary radiation to patients
that can be controlled by the limited operator is:
A.) Patient condition
B.) Patient size
C.) Repeat exposure
D.) equipment malfunction Ans: Repeat exposure
The limited operator can reduce repeat exposures by:
A.) Accepting marginal images
B.) Clearly instructing patients
C.) increasing the source-image receptor distance (SID)
D.) optimizing the kVp Ans: Clearly instructing patients
© 2025 All rights reserved
, 4 | Page
How does x-ray beam restriction minimize patient
exposure?
A.) it limits radiation fog
B.) It limits the radiation field to the area of interest
C.) It limits the effect of patient motion
D.) It limits repeat exposure Ans: 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?
A.) Collimator
B.) Detent
C.) Filter
D.) Sheild Ans: Collimator
How does filtration reduce patient exposure?
A.) Removes the shorter-wavelength photons
B.) Removes longer wavelength photons
C.) Reduces the size of the radiation field
D.) Reduces the time of exposure Ans: Removes longer
wavelength photons
© 2025 All rights reserved
