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A Test 3-2 _RADT_A161 Fundamentals
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Using a large focal spot increases x-ray beam quality as compared to using a small focal spot
True
False
True
False
False
What is the effect of decreasing kVp on the x-ray beam?
Decreased quality and penetrability
Which exposure factor controls image contrast?
kVp
Which image quality factor is controlled by mAs?
OD
Which patient factors must be considering when setting radiographic technique?
(1) Patient/part thickness
(2) Pathology
(3) Tissue composition
1, 2, and 3
Which prime exposure factor affects the intensity of the x-ray beam at the IR?
kVp
Ma
SID
SID
Which term might be used to describe an x-ray image that has a few shades of gray with marked visible differences between the ODs?
Short-scale contrast
Which would provide the greatest detail in an x-ray image?
(1) Small focal spot
(2) Longer SID
1 and 2
When mAs is increased, x-ray quantity
increases proportionately
X-rays of higher energy can be obtained by doing which of the following?
increasing kVp
positioning the anatomy close to the IR dose what
To obtain minimum magnification
A foreshortened image results in what
results from an inclined object
Another term for focal spot blur is
penumbra
Spatial resolution is principally affected by which of the following
none of the above affects spatial resolution
focal spot size
focal spot size
The chest represents high contrast anatomy (high subject contrast). Therefore, which of the following is most appropriate?
high kVp
low kVp
high kVp
The chest represents high contrast anatomy (high subject contrast). Therefore, which of the following is most appropriate?
high kVp
low kVp
high kVp
A shorter gray scale on a radiograph would be obtained by doing which of the following (all other factors remain the same)
reducing kVp
increasing kVp
reducing kVp
Radiographic density is the degree of blackening of an area of film.
True
False
True
Which OID would result in the greatest increase in radiographic contrast?
1 inch
12 inches
12 inches
is this high or low contrast
High
Is this high or low contrast
Low
Author
McCrae
ID
291711
Card Set
A Test 3-2 _RADT_A161 Fundamentals
Description
A Test 3
Updated
2014-12-16T04:37:14Z
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