Exam (elaborations)
ARRT Practice Questions.
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- System Of Equations And Inequalities
ARRT Practice Questions.
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ARRT Practice Questions____ mas _____ kVP
Keeps radiation dose to a minimum
Tube life is extended - ANS-Low mAs
high kvp
______ ______ describes the % of time that the primary beam is directed toward a
particular wall - ANS-Use Factor
______ is a route of administration for drugs via an injection into the spinal canal -
ANS-intrathecal
1 sec - ANS-1000ms
12:1 - ANS-5
16:1 - ANS-6
5:1
(Times mAs by...) - ANS-2
50 rem = _____ msv - ANS-500
50 Rem = _______
mRem and mSv - ANS-5000mRem
500 mSv
6:1 - ANS-3
8:1 - ANS-4
Most commonly used
,A change to 3 phase and 12 pulse = ____ (original mAs) - ANS-1/2
A change to 3 phase and 6 pulse = ____ (original mAs) - ANS-2/3
A decrease in KVp by 15% _____ density - ANS-1/2s
A decrease in SID will do what to magnification?
Do what to recorded detail? - ANS-Increase magnification
Decrease recorded detail
A decrease in the number of photons= - ANS-A decrease in beam intensity
A gentle curve usually has___speed,____contrast, and___latitude. - ANS-Slow
Low
Wide
A grid results in .......
1
2
3 - ANS-Less scatter fog
Fewer gray tones
Increase in contrast
A group of exposure factors are given consisting of MA and time. Which will produce the
greatest radiographic density? - ANS-Multiply all factors
the highest mas will produce the highest density
A group of exposure factors are given which one will deliver the least amount of
exposure? - ANS-Highest KVp with lowest mass will give the least or safest amount
A high Ei number - ANS-Overexposure
A high S number - ANS-Underexposure
A higher ratio grid = ______ grays - ANS-Fewer
A image plate front material - ANS-Carbon fiber
A increase in matrix size results in..... - ANS-smaller pixels
, Improved resolution
A increases in KVp of 15% ___ density - ANS-Doubles
A larger focal spot size will____recorded details since greater blur is produced -
ANS-Decrease
A low energy x-Ray photon uses all of its energy to eject an inner-shell electron -
ANS-Photoelectric effect
A proportional increase in SID and OiD - ANS-No change in resolution
A skin rash triggered by a reaction to food, medicine, or other irritants. - ANS-Hive
Or
Urticaria
A smaller focal spot size will____recorded detail since the focal spot blur is smaller? -
ANS-Increase
a specific situation in which a drug, procedure, or surgery should not be used because it
may be harmful to the person. - ANS-Contraindication
A star pattern tests what? - ANS-Focal spot size
According to the NCRP the annual occupational full body does equipment limit is? -
ANS-5 rem
50 mSv
5000mrem
Achalasia - ANS-Dilation of the esophagus
The cardiac sphincters failure to relax and allow food to pass
An electron approaching a positive nuclear charge changes direction and loses energy -
ANS-Brems radiation production
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