A Test 3-2 _RADT_A161 Fundamentals

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Author:
McCrae
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291711
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A Test 3-2 _RADT_A161 Fundamentals
Updated:
2014-12-15 23:37:14
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A Test 3
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  1. Using a large focal spot increases x-ray beam quality as compared to using a small focal spot

    True
    False
    False
  2. What is the effect of decreasing kVp on the x-ray beam?
    Decreased quality and penetrability
  3. Which exposure factor controls image contrast?
    kVp
  4. Which image quality factor is controlled by mAs?
    OD
  5. Which patient factors must be considering when setting radiographic technique?
    (1) Patient/part thickness
    (2) Pathology
    (3) Tissue composition
    1, 2, and 3
  6. Which prime exposure factor affects the intensity of the x-ray beam at the IR?

    kVp
    Ma
    SID
    SID
  7. Which term might be used to describe an x-ray image that has a few shades of gray with marked visible differences between the ODs?


    Short-scale contrast
  8. Which would provide the greatest detail in an x-ray image?
    (1) Small focal spot
    (2) Longer SID
    1 and 2
  9. When mAs is increased, x-ray quantity
    increases proportionately
  10. X-rays of higher energy can be obtained by doing which of the following?
    increasing kVp
  11. positioning the anatomy close to the IR dose what
    To obtain minimum magnification
  12. A foreshortened image results in what
    results from an inclined object
  13. Another term for focal spot blur is 
    penumbra
  14. Spatial resolution is principally affected by which of the following  

    none of the above affects spatial resolution

    focal spot size
    focal spot size










  15. The chest represents high contrast anatomy (high subject contrast).  Therefore, which of the following is most appropriate? 

     
    high kVp
    low kVp
    •  
    • high kVp










  16. The chest represents high contrast anatomy (high subject contrast).  Therefore, which of the following is most appropriate? 

     
    high kVp
    low kVp
    •  
    • high kVp










  17. A shorter gray scale on a radiograph would be obtained by doing which of the following (all other factors remain the same) 

    reducing kVp
    increasing kVp 
    reducing kVp










  18. Radiographic density is the degree of blackening of an area of film.


    True
    False
    True
  19. Which OID would result in the greatest increase in radiographic contrast?

    1 inch
    12 inches
    12 inches
  20. is this high or low contrast
    High
  21. Is this high or low contrast
    Low

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