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Inversely related to image density and beam intensity.
A. mA
B. kVp
C. Time
D. SID
D.
Together determine the total quantity of radiation produced.
A. mA
B. Time
C. kVp
D. SID
a & b
Has a directly proportional relationship to image density.
A. mA
B. Time
C. kVp
D. SID
a & b
Increase by 15% will approximately double image density.
A. SID
B. Time
C. kVp
D. mA
C.
Decreasing this factor decreases the penetrating ability of the x-ray beam.
A. Time
B. SID
C. kVp
D. mA
C.
Primary factor used to control image contrast
A. mA
B. kVp
C. SID
D. Time
B.
Increasing this factor results in lower patient dose.
A. Time
B. kVp
C. mA
D. SID
D.
Usually, this factor is standardized and does not vary from patient to patient.
A. mA
B. kVp
C. SID
D. Time
C.
Reducing this factor minimizes the effect of patient motion causing blur on the image.
A. SID
B. kVp
C. mA
D. Time
D.
Doubling this factor results in doubling radiographic density.
A. mA
B. Time
C. kVp
D. SID
a & b
Doubling this factor results in ¼ radiographic density.
A. kVp
B. mA
C. Time
D. SID
D.
difference in density between adjacent areas of the image
A. shape distortion
B. detail
C. density
D. contrast
E. size distortion (magnification)
D.
overall blackness of the radiograph
A. detail
B. contrast
C. size distortion (magnification)
D. density
E. shape distortion
D.
misrepresentation of the true shape of the object
A. detail
B. contrast
C. shape distortion
D. density
E. size distortion (magnification)
C.
image clarity or the ability to visualize small structures
A. contrast
B. size distortion (magnification)
C. detail
D. shape distortion
E. density
C.
Primarily controlled by kVp.
A. density
B. size distortion (magnification)
C. detail
D. contrast
E. shape distortion
D.
Primarily controlled by mAs.
A. contrast
B. detail
C. density
D. size distortion (magnification)
E. shape distortion
C.
Decreased by increasing SID.
A. density
B. contrast
C. detail
D. size distortion (magnification)
E. shape distortion
a & d
Increased by increasing SID.
A. shape distortion
B. density
C. size distortion (magnification)
D. detail
E. contrast
D.
Increased by angulation of the body part
A. contrast
B. shape distortion
C. density
D. size distortion (magnification)
E. detail
B.
Increased by angulation of the Central Ray
A. shape distortion
B. size distortion (magnification)
C. contrast
D. density
E. detail
A.
Decreased by using larger focal spot size
A. contrast
B. density
C. detail
D. size distortion (magnification)
E. shape distortion
C.
Decreased by increased patient motion
A. contrast
B. size distortion (magnification)
C. density
D. shape distortion
E. detail
E.
Increased by increased OID.
A. shape distortion
B. contrast
C. size distortion (magnification)
D. detail
E. density
C.
Decreased by increased screen crystal size.
A. contrast
B. density
C. detail
D. shape distortion
E. size distortion (magnification)
C.
T or F?
Increased OID results in increased penumbra and decreased image clarity.
True
False
true
T or F?
The geometric factors that affect image detail are OID, SID, and focal spot size.
True
False
true
T or F?
In general, faster speed screens have larger phosphor crystals resulting in increased radiographic detail or image sharpness.
True
False
FALSE - decreased detail
T or F?
The Half Value Layer is an indication of beam quantity.
True
False
FALSE- beam quality
T or F?
The effect of added filtration is to decrease the amount of low energy radiation reaching the patient.
True
False
true
T or F?
The inherent blurriness at the edges of objects represented in the image is termed penumbra.
True
False
true
T or F?
Low mAs settings used with high speed intensifying screens can result in radiographic image mottle.
True
False
true
Which mA and time combination produces the greatest number of x-rays?
A) 200 mA and 0.2 seconds
B) 200 mA and 0.1 seconds
C) 100 mA and 0.5 seconds
D) 100 mA and 0.3 seconds
C)
If the radiation intensity at 30² is 10 mR, what will the intensity be at 60²?
A) 2.5 mR
B) 40 mR
C) 5 mR
D) 20 mR
A)
Author
emerick9102
ID
18008
Card Set
RAD190-ch7.txt
Description
chapter 7 review
Updated
2010-05-06T00:03:29Z
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