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Examination for Limited Scope of Practice in Radiography (CORE) Exam Questions and Complete
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Examination for Limited Scope of Practice in Radiography (CORE) Exam Questions and Complete
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Examination for LimitedScope of Practice in
Radiography (CORE)
Exam Questions and
Complete Solutions
Graded A+
Denning [Date] [Course title]
, which of the following statements are correct regarding the link between radiation dose and genetic
effects? - Correct Answer: The link has been demonstrated in animal studies. Increased risk to humans
cannot be predicted with respect to an individual.
Which of the following changes in kilovoltage (kVp) will result in the greatest reduction of patient dose,
when miliampere-seconds (mAs) is adjusted to compensate for the change? - Correct Answer: increase
kVp by 30%
Which radiographic imaging system uses storage phosphors to temporarily store energy representing
the image signal? - Correct Answer: computer radiography
What is the primary purpose of using gonad shields during radiography? - Correct Answer: Reduce the
likelihood of genetic effects.
which of the following are types of gonad shields? - Correct Answer: Contact and shadow
when should gonad shielding be used? - Correct Answer: 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:
- Correct Answer: repeat exposure
The limited operator can reduce repeat exposures by : - Correct Answer: clearly instructing the patients.
How does the 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
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