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Gxmo Ohio review questions and answers
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Gxmo Ohio review questions and answers
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Gxmo Ohio review questions andanswers
Contrast - ANSWER: ➡ The difference between any two adjacent portions of the image
Attenuation - ANSWER: ➡ Absorption of the X-ray beam by matter
Scatter radiation - ANSWER: ➡ Part of the X-ray beam that scatters in opposite direction,
from the patient. Has less energy than primary beam. Not easily controlled
Detent - ANSWER: ➡ Special mechanism that stops the X-ray tube in a specific location.
Trendelenburgs position - ANSWER: ➡ Flat on back with head lower 15 degrees
Grid - ANSWER: ➡ Device that absorbs most of the scatter radiation coming off pt, preventing
it from reaching IR. Increases pt exposure.
Floating tabletop - ANSWER: ➡ Allows the top of X-ray table to move independently, which
makes it easier to align body part
Bucky - ANSWER: ➡ Grid and pull out tray to hold the IR plate and center it to Central ray
Stationary grid - ANSWER: ➡ Grid that does not move during exposure
When to use a grid? - ANSWER: ➡ 10-12 cm or more in thickness or when kVp greater than 60
Upright cassette holder *UPRIGHT BUCKY* - ANSWER: ➡ Hold IR in upright position. Mounted
on wall and able to be adjusted for height at 40 or 72 SID
, Control console *panel* - ANSWER: ➡ Where the limited operator sets exposure factors and
Initiates the exposure
Transformer cabinet - ANSWER: ➡ Used to produce high voltage required for X-ray
production
Fundamental rad safety - ANSWER: ➡ The potential hazard is greater for the limited operator
than the pt because the limited operator is in frequent daily contact
Sources of radiation - ANSWER: ➡ X-ray tube and any matter that is in the path of the X-ray
beam
Principle source of scatter? - ANSWER: ➡ The patient
Should the limited be involved in holding patients? - ANSWER: ➡ No never. Immobilization
devices or the patients family if need be
What should the GXMO do before making an exposure? - ANSWER: ➡ Perform a safety check.
Make sure the X-ray door is closed. No one in X-ray room. Your completely behind Barrier. No
other IRs in the exposure area.
The source of X-rays? - ANSWER: ➡ In a very small area inside the X-ray tube.
Tube is surrounded by - ANSWER: ➡ Lead lined tube housing
Tube housing - ANSWER: ➡ Absorbs *some* scatter
X-rays going in a useful direction exit via the - ANSWER: ➡ Tube port
X-Rays from tube port form - ANSWER: ➡ triangular shaped *X-ray beam*
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