Test Bank for Radiology for the Dental Professional 9th Edition by Frommer.
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Module
Nursing
Institution
Nursing
Test Bank for Radiology for the Dental Professional 9th Edition by Frommer.Test Bank for Radiology for the Dental Professional 9th Edition by Frommer.Test Bank for Radiology for the Dental Professional 9th Edition by Frommer.Test Bank for Radiology for the Dental Professional 9th Edition by Frommer...
7. When designing barriers it is important to remember that x-rays travel in _______
lines.
ANS: straight
REF: 6
MULTIPLE CHOICE
1. If the useful beam is not centered on the film in the patient’s mouth, the result will
be:
a. foreshortening
b. elongation
c. collimator cutoff
d. overlapping
ANS: C REF: 35
2. A diagnostic film is made at 10 mA and 4 impulses. The exposure that would
produce the same image at 5 mA would be:
a. 5 impulses
b. 10 impulses
c. 8 impulses
d. 45 impulses
ANS: C REF: 31
3. Collimator cutoff (cone cutting) is caused by:
a. improper horizontal angulation
b. over filtration
c. improper beam film alignment
d. improper vertical angulation
ANS: C REF: 35
4. If a radiograph is described as “underpenetrated,” then the error must be:
a. excessive kVp
b. too little mA
c. excessive mA
d. too little kVp
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