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To double the radiographic density, the 15% rule is applied to which of the following?
- central ray angle
- anode heel effect
- focal spot size
- kVp - ANSWER-D. kVp
Which of the following is the most common type of idiopathic scoliosis?
- juvenile
- infantile
- nonstructural
- adolescent - ANSWER-D. Adolescent
Intensifying screens contain 1 / 4
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- silver bromide
- silve halide
- gelatin
- phosphors - ANSWER-D. Phosphors
Which is not a type of phosphor used in modern intensifying screens?
- lanthanum
- gadolinium
- calcium tungstate
- yttrium - ANSWER-C. Calcium tungstate
The patient will be exposed with the most radiation when the bucky factor is
- 1
- 4
- 6
- 7 - ANSWER-D. 7
All of the following will increase contrast on radiographic film
except: 2 / 4
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- decrease kVp
- increased grid ratio
- increase collimation
- increase kVp - ANSWER-D. Increase kVp
Which is used as a film preservative in the development process of film?
- sodium sulfite
- water
- sodium carbonate
- hydroquinone - ANSWER-A. Sodium sulfite
The standard developing temperature of film processing is _______ degrees F.
- 60
- 64
- 68
- 72 - ANSWER-C. 68
Which reducing agent produces shades of gray on the developing film? 3 / 4
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- glutaraldehyde
- sodium sulfite
- potassium bromide
- phenidone - ANSWER-D. Phenidone
Hydroquinone is a ________, which helps build up blackness on the radiograph.
- accelerator
- hardener
- developing agent
- preservative - ANSWER-C. Developing agent
Which is responsible for the swelling of gelatin upon development of x-rays?
- phenidone
- sodium sulfite
- glutaraldehyde
- sodium carbonate - ANSWER-D. Sodium carbonate
Which would contribute to the lack of fog on film?
- hardener
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