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Contrast & Density Quiz

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1. The 15 percent rule is somewhat accurate within the range of ___ to ____ kVp.




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2. A __ to ___ percent change in kVp is required in the 50-90 kVp range.




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3. Low energy radiation will result in ______ ____ contrast.




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4. Define film contrast.




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5. What type of relationship occurs with contrast when SOD increases?




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6. ________ refers to the ability of a film to record a wide range of densities.




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7. Adding air <increases/decreases> radiographic density




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8. Subject contrast will be the lowest with which body habitus?




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9. A ___ to __ percent change in kVp is required in the 90 - 130 kVp range.




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10. What are the two types of radiographic contrast?




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11. Variable kilovoltage




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12. Window levelling




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13. Lowers




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14. Motion has no effect on contrast.




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15. Increased




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16. Decreases




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17. Photographic




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18. Cathode




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19. Short




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20. Decreases





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