If the back-up time is shorter than the actual exposure time needed for a properly
exposed image
a. the image receptor will be overexposed b. the image receptor will be
underexposed c. the exposure will be appropriate
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b. the image receptor will be underexposed
If a 12:1 ratio grid is used in a procedure that previously used no grid and 4 mAs, how
much mAs should be used with the grid?
a. 1.25 mAs.
b. 0.33 mAs.
c. 20 mAs.
d. 48 mAs.
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C. 20 mAs
Scatter radiation may
a. expose people near the patient
b. increase patient exposure
c. contributes no useful information if it strikes the image receptor d. all of the above
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D. All of the above
Using a lower mA station during an AEC examination results in
a. reduced patient exposure
b. increased exposure time
c. decreased exposure time
d. A and B
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b. increased exposure time
As compared with film-screen, digital image receptors depend more on mAs.
True
False
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, False
As compared with the H&D curve of film with the toe, straight-line portion, and
shoulder, the response of a digital IR to exposure is
a. a straight line
b. a line and a curve
c. a curve but less than film
d. more curved
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a. a straight line
The computer is associated with:
a. film-screen imaging
b. digital imaging
c. film-screen and digital imaging
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b. digital imaging
If a film image appears dark, to produce a diagnostic image you may decide to
Selected Answer: c. decrease mAs Answers: a. increase density b. increase mAs c.
decrease mAs d. A and B
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exposed image
a. the image receptor will be overexposed b. the image receptor will be
underexposed c. the exposure will be appropriate
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b. the image receptor will be underexposed
If a 12:1 ratio grid is used in a procedure that previously used no grid and 4 mAs, how
much mAs should be used with the grid?
a. 1.25 mAs.
b. 0.33 mAs.
c. 20 mAs.
d. 48 mAs.
,Give this one a try later!
C. 20 mAs
Scatter radiation may
a. expose people near the patient
b. increase patient exposure
c. contributes no useful information if it strikes the image receptor d. all of the above
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D. All of the above
Using a lower mA station during an AEC examination results in
a. reduced patient exposure
b. increased exposure time
c. decreased exposure time
d. A and B
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b. increased exposure time
As compared with film-screen, digital image receptors depend more on mAs.
True
False
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, False
As compared with the H&D curve of film with the toe, straight-line portion, and
shoulder, the response of a digital IR to exposure is
a. a straight line
b. a line and a curve
c. a curve but less than film
d. more curved
Give this one a try later!
a. a straight line
The computer is associated with:
a. film-screen imaging
b. digital imaging
c. film-screen and digital imaging
Give this one a try later!
b. digital imaging
If a film image appears dark, to produce a diagnostic image you may decide to
Selected Answer: c. decrease mAs Answers: a. increase density b. increase mAs c.
decrease mAs d. A and B
Give this one a try later!
