SCOPE OF PRACTICE IN RADIOLOGY
PRACTICE- CORE TEST 1 EXAM 2025
QUESTIONS AND ANSWERS
The link has been demonstrated in animal studies, AND Increased risk to humans cannot be
predicted with respect to an individual. - ANS 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.
Increase kVp by 30% - ANS Which of the following changes in kilovoltage (kVp) will result in
the greatest reduction of patient dose, when milliampere-seconds (mAs) is adjusted to
compensate for the change?
Faster-speed IR system - ANS Which of the following image receptor (IR) system speeds will
result in the lowest patient dose?
Reduce the likelihood of genetic effects - ANS What is the primary purpose of using gonad
shields during radiography?
Contact and Shadow - ANS Which of the following are types of gonad shields?
1. Aperture
2. Contact
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, 3. Shadow
When the gonads are within 5 cm of the radiation field - ANS When should gonad shielding
be used?
repeat exposures - ANS The greatest cause of unnecessary radiation to patients that can be
controlled by the limited operator is:
clearly instructing patients - ANS The limited operator can reduce repeat exposures by:
It limits the radiation field to the area of interest - ANS How does x-ray beam restriction
minimize patient exposure?
Collimator - ANS What is the device that allows the limited operator to vary the size of the
radiation field?
Removes longer-wavelength photons - ANS How does filtration reduce patient exposure?
2.5 mm A1 equiv - ANS What is the National Council on Radiation Protection and
Measurements (NCRP) recommendation for the amount of total filtration?
Time, distance, and shielding - ANS What are the three principal methods used to protect
limited operators from unnecessary radiation exposure?
Shadow- patient - ANS Which of the following is NOT a type of personnel radiation shielding?
Scattered radiation from the patient - ANS Personnel shielding must be worn on the rare
occasion during which limited operator may need to remain in the radiographic room during an
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