ARRT Mock Exam With 10% Correct And
Verified Answers
M/C: Which of the following are true for an AP coccyx projection?
1. 15 degree cephalic angle.
2. 10 degree caudal angle
3. center 2 inches superior to the pubic symphysis - Correct Answer-2 and
3
More windings on the primary side of the transformer will create ____
voltage on the secondary side. - Correct Answer-less
In the construction of a radiographic grid, what defines the grid ratio? -
Correct Answer-height of lead strips compared to the distance between
them
What positioning technique could help enhance the quality of a lateral
knee? - Correct Answer-CR with a 5 degree cephalic angle
During a fluoro exposure, a patient's stomach absorbs a total of 0.012
joules of energy. The tissues of the stomach weigh 3 kilograms. What is
the absorbed dose? - Correct Answer-0.004 Gy
Genetic effects are those that manifest: - Correct Answer-in future
generations of the exposed individual
General Fluoro is limited to maximum entrance skin exposure rate of: -
Correct Answer-100 mGy/min
How is the patient positioned for an external rotation of the shoulder? -
Correct Answer-abduct the patients arm
T/F: Electrons and x-rays can be focused. - Correct Answer-False
, Which device in an image receptor can collect and convert light into an
electrical signal? - Correct Answer-CCD, Photodiode
if a patient begins to have symptoms of hives after an injection of contrast
for an IVP, what should be done first? - Correct Answer-call a radiologist
What is the most common cause of an off-level grid error? - Correct
Answer-grid shifts due to patient movement
The trachea bifurcates at the level of the _____. - Correct Answer-Aortic
notch
If the x-ray tube is moved rapidly during a fluoro
exam, the image will blur. This is the result of the
following: - Correct Answer-camera tube lag
during an x-ray exposure, electrons accelerate
towards what part of the x-ray tube? - Correct
Answer-Anode
What is the radiation weighting factor of x-rays? -
Correct Answer-1
M/C: The use of proper collimation serves to:
1. Increase image contrast
2. reduce radiation exposure to the patient
3. decrease effective focal-spot size - Correct Answer-1 and 2
Inherent filtration refers to: - Correct Answer-filtration that is part
of tube design
What effect will decreasing collimation have on patient radiation
exposure - Correct Answer-increases patient radiation exposure
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