Radiologic Technology Exam Prep & Practice Test
What most effectively minimizes radiation exposure to the patient? - correct answers -Beam restriction
Radiographic subjects composed of just a few, very dissimilar tissue densities are likely to produce: -
correct answers -High radiographic contrast
In which of the following positions are the pyloric canal and duodenal bulb best demonstrated during a
GI series?
A. RAO
B. left lateral
C. recumbent PA
D. recumbent AP - correct answers -A. RAO
According to NCRP regulations, leakage radiation from the x-ray tube must NOT exceed: - correct
answers -100mR/hr
When a patient with an arm injury needs help undressing, where should you remove clothing first? -
correct answers -From the uninjured arm
What electrical device will prevent equipment damage in the event of a circuit overload? - correct
answers -Circuit breaker
The housing surrounding an x-ray tube function is to:
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,1. keep leakage radiation to a minimum
2. protect from electrical shock
3. retain heat within the glass envelope
A. 1 only
B. 1 & 2 only
C. 1 & 3 only
D. 1, 2, & 3 - correct answers -B. 1 & 2 only
The quantity of x-ray photons delivered to the patient in a given exposure is PRIMARILY regulated by: -
correct answers -mAs
Arthrography of the shoulder is often performed to evaluate: - correct answers -Rotator cuff tears
One rule of radiation protection is that radiation must scatter at LEAST how many times before reaching
the operator? - correct answers -2
As diagnostic x-rays travel through matter, ionization occurs. A positive ion may be created by what? -
correct answers -Removal of orbital electrons
The escape of blood into surrounding tissues is called: - correct answers -Extravasation
The manubrial notch is approximately at the same level as the: - correct answers -T2-T3 insterspace
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, Filters used in radiographic x-ray tubes are generally composed of: - correct answers -Aluminum
An undifferentiated cell is a:
1. precursor cell
2. stem cell
3. mature cell
A. 1 only
B. 1 & 2 only
C. 2 & 3 only
D. 1, 2 & 3 only - correct answers -B. 1 & 2 only
Substituting intensifying screens with a speed of 200 for a 100 speed system will:
1. require 50% less exposure than 100 speed
2. increase the production of scatter
3. enable the decrease of exposure time
A. 1 only
B. 2 only
C. 1 & 3 only
D. 1, 2 & 3 - correct answers -C. 1 & 3 only
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