Radiology #4

8 Questions | Total Attempts: 1335

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Radiology Quizzes & Trivia

Questions and Answers
  • 1. 
    Filters are used in the xray beam to
    • A. 

      Increase density

    • B. 

      Reduce density

    • C. 

      Reduce exposure size of the beam

    • D. 

      Reduce patient radiation dose

  • 2. 
    Proper collimation of the x ray beam fog film size and focal film distance will
    • A. 

      Improve image definition

    • B. 

      Increase radiographic contrast

    • C. 

      Increase the intensity of the central beam

    • D. 

      Increase secondary radiation

    • E. 

      Reduce primary radiation

  • 3. 
    The best way to describe the penetration of an x ray beam is by its
    • A. 

      Half value layer

    • B. 

      Kilovoltage

    • C. 

      Milliamperage

    • D. 

      Rad output

    • E. 

      Roentgen output

  • 4. 
    The milliampere control dial on the dental x ray mchine
    • A. 

      Regulates the step up transformer

    • B. 

      Determines the penetration of the x ray

    • C. 

      Regulates the guality of the radiation

    • D. 

      Regulates the quantity of the radiation

    • E. 

      Regulates scatter radiation

  • 5. 
    You have taken a radiograph of a patient with a large skeletal build . the resulting image does not show the bone trabeculation well and appers to underpenetrated. the adjustment that should be made for the retake is
    • A. 

      Reduce the ma

    • B. 

      Reduce the exposure time

    • C. 

      Increase the kvp

    • D. 

      Reduce the kvp

    • E. 

      Check the processing solution temperature

  • 6. 
    In taking the radiograph you did not center the beam on the film in the patient mouth. the resulting film will show
    • A. 

      Fogging

    • B. 

      Overlapping

    • C. 

      Elongation

    • D. 

      Collimator cutoof cone cutting

    • E. 

      Foreshortening

  • 7. 
    The dental x ray machine in your office operates at 90kvp and thus is required to have a total filtration of
    • A. 

      2.75 inches of aluminum

    • B. 

      2.5 inches of aluminum

    • C. 

      2.0 mm of aluminum

    • D. 

      2.5mm of aluminum

    • E. 

      1.5 mm of aluminum

  • 8. 
    The radiation inspector comes to your office and tells you that your x ray beam has an hvl of 1.00mm of aluminum you should
    • A. 

      Feel assured theat the beam mets the recommended standards

    • B. 

      Be concerned becaused of the unnecessary seconday radiation to your patients

    • C. 

      Be concerned because the beam is too penetrating

    • D. 

      Add more filtration

    • E. 

      Use a different pid