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img crit ch 33 Test

Enter the letter for the matching Answer
incorrect
1.
What is the 9 penny test used for?
incorrect
2.
What filtration is needed for tubes operating between 50 and 70 kVp?
incorrect
3.
How much can the alignment of the collimator and bucky tray be off?
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4.
Repeat rates should fall between:
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5.
According to federal law ESE for angiography shall not exceed:
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6.
According to federal law ESE for flouro shall not exceed:
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7.
How do we check the phototimer accuracy?
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8.
How do we know if the rectifier is at fault for an exposure timer error?
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9.
Allowable variance in tube arc for tomo (less than 30 degrees):
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10.
Allowable variance in tube arc for tomo (greater than 30 degrees):
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11.
How much can the tolerance for the exposure timer be off?
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12.
How much can the tolerance for reproducibility be off?
A.
10R per minute (100mGy per min)
B.
3-10% averaging at 8%
C.
to determine if the alignment between the collimator and bucky is within range.
D.
there should be 30 dots, half the number of dots always means it’s the rectifier
E.
+/- 2 degrees
F.
1.5 mmAleq
G.
+/- 5% if over 10ms or +/-20% if under or at 10ms
H.
+/- 2% of the SID
I.
+/- 5 degrees
J.
expose 2 AL or acrylic pieces of different thickness. They should have the same OD
K.
20R per minute (200mGy per min)
L.
+/- 5% (same as the variance in voltage supply)
Type the Answer that corresponds to the displayed Question.
incorrect
13.
ESE readout for cassette spot films in flouro:
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14.
ESE readout for photo-flourospot images in flouro:
incorrect
15.
What filtration is needed for tubes operating at 50 kVp and below?
incorrect
16.
How much can the tolerance for film illuminators (viewboxes) be off?
incorrect
17.
What filtration is needed for tubes operating at 70 kVp and above?
incorrect
18.
How much can the tolerance for the CR be off?
incorrect
19.
How much can the tolerance for the angulation be off?
Type the Question that corresponds to the displayed Answer.
incorrect
20.
exposure she be the same if the same settings are used
incorrect
21.
a sequential increase in mAs should produce the same sequential increase in exposure
incorrect
22.
combinations of mA and s that yield the same mAs

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