Quiz: Take This Important Radiology Test

121 Questions | Total Attempts: 1525

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Quiz: Take This Important Radiology Test

Quiz: Take this important radiology test. When it comes to viewing the inside of the boy without cutting it up, radiology is the next best thing at diagnosing most patients. Is this is done through x-rays, or is it just all about MRIs? To test just how much you know about radiology, we have prepared the comprehensive quiz below. How about you try it out!


Questions and Answers
  • 1. 
    All ionizing radiations cause damage to living tissues. although very little radiation is used in dentistry, damage to the cells does occur.
    • A. 

      Both are true

    • B. 

      Both are false

    • C. 

      First is true. second is false.

    • D. 

      First is false. second is true.

  • 2. 
    What specific mechanism of radiation may result in the formation of hydrogen peroxide when xray energy is absorbed by patients?
    • A. 

      An ejected high-speed electron may interact with other atoms within absorbing

    • B. 

      Free radical formation created by the ionization of water may occur

    • C. 

      Unequal charge distribution may result in negative electrical potential

    • D. 

      Creation of a magnetic field may cause polarization

  • 3. 
    Where is the best place for you to view the radiograph that you used for the film screen contact test?
    • A. 

      Dimly lit room at a distance of 1ft from the view box

    • B. 

      Brightly lit room at a distance of 1 ft from the view box

    • C. 

      Dimly lit room at a distance of 6 ft from the view box

    • D. 

      Brightly lit room at a distance of 6 feet from the viewbox

  • 4. 
    The view box should emit a uniform subbdued light when it is functioning properly. permanently discolored plexiglas surfaces and blackened fluorescent light bulbs must be replaced.
    • A. 

      Both are true

    • B. 

      Both are false

    • C. 

      First is true, second is false

    • D. 

      First is false second is true

  • 5. 
    The perform the coin test, the film and coin are exposed to 
    • A. 

      The safelight

    • B. 

      The darkroom ceiling or white light

    • C. 

      The light with the dark room door open

    • D. 

      No light at all

  • 6. 
    To conduct the coin test, the film and coin are exposed for 
    • A. 

      10 seconds

    • B. 

      3 or 4 minutes

    • C. 

      15 minutes

    • D. 

      An entire workday

  • 7. 
    If the image of the coin appears on the processed radiograph after the coin test 
    • A. 

      The safe light is safe to use with that type of film

    • B. 

      The safelight is not safe to use with that type of film

    • C. 

      Conduct the test again with the dark room door closed rather than open 

    • D. 

      Conduct the test again with the safe light off rather than on

  • 8. 
    If the processor is functioning properly the results of the automatic processor test films will be that 
    • A. 

      The unexposed film appears clear and dry and the film exposed to light appears black and dry

    • B. 

      The unexpected film appears clear and wet and the film exposed to light appears black and wet

    • C. 

      The unexposed film appears black and dry and the film exposed to light appears clear and dry

    • D. 

      The unexposed film appears black and wet and the film exposed to light appears clear and wet

  • 9. 
    A reference radiograph is used to evaluate
    • A. 

      The viewbox

    • B. 

      Darkroom lighting

    • C. 

      Safelighting

    • D. 

      Developer strength

  • 10. 
    To create a reference which of the following must be fresh
    • A. 

      Film developer fixer

    • B. 

      Film developer

    • C. 

      Developer fixer

    • D. 

      Film

  • 11. 
    Prior to using the developer each day you compare the reference sheet to a test film that you developed to check to see if the developer chemicals depleted. what are you comparing when you look at the two films
    • A. 

      MA

    • B. 

      KVp

    • C. 

      Color

    • D. 

      Density

  • 12. 
    When the step wedge technique is used to evaluate developer strength, and the density on the daily radiograph differs from that on the standard radiograph by more than ___________ steps, the developer solution is depleted
    • A. 

      Two

    • B. 

      Three

    • C. 

      Five

    • D. 

      Seven

  • 13. 
    Quality assurance monitoring includes a detailed log of all tests performed. a monitoring schedule should be posted in the dental office
    • A. 

      Both are true

    • B. 

      Both are false

    • C. 

      First is true second is false

    • D. 

      First is false second is true

  • 14. 
    Which of the following films would most likely appear black
    • A. 

      An unexposed film

    • B. 

      An over exposed film

    • C. 

      A film exposed to light

    • D. 

      An underexposed film

  • 15. 
    The possibility of exposure of radiographic film to white light can be reduced by
    • A. 

      Turning off the safe light and unwrapping the films in a pitch black room

    • B. 

      Pre-exposing the entire package of film to radiation before opening the package

    • C. 

      Not unwrapping the film in a room with white light

    • D. 

      Turning off the fluorescent lighting in the treatment room before exposing radiographic films

  • 16. 
    An underexposed receptor results from
    • A. 

      Insufficient exposure time

    • B. 

      Inadequate tissue density

    • C. 

      Excessive mA

    • D. 

      Excessive kV

  • 17. 
    To prevent underexposure, check and increase ______________ as needed
    • A. 

      Exposure time mA kV

    • B. 

      Exposure time kV

    • C. 

      KV mA

    • D. 

      Exposure time mA

  • 18. 
    To correct a dental image where apices do not appear,
    • A. 

      Make sure that no more than 3/4 in of the receptor edge extends beyond the incisal-occlusal surfacs of the teeth

    • B. 

      The teeth must be firmly in contact with the bite-block 

    • C. 

      Increase the exposure time

    • D. 

      Direct the xray beam through the interproximal spaces

  • 19. 
    When the occlusal plane appears tipped or tilted, the error is a
    • A. 

      Incorrect horizontal angulation

    • B. 

      Incorrect vertical angulation

    • C. 

      Dropped receptor corner

    • D. 

      Elongated image

  • 20. 
    To prevent a dropped receptor corner
    • A. 

      Change the horizontal angulation

    • B. 

      Increase the vertical angulation

    • C. 

      Decrease the vertical angulation

    • D. 

      Make certain the edge of the receptor is placed parallel to the incisal-occlusal surfaces of the teeth

  • 21. 
    To avoid overlapped contacts on periapical image 
    • A. 

      Increase vertical angulation

    • B. 

      Decrease vertical angulation

    • C. 

      Direct the xray beam through the interproximal regions

    • D. 

      Make certain that no more than 1/8 in of the receptor edge extends beyond the incisal-occlusal surfaces of the teeth

  • 22. 
    Long distored teeth appear on the image when
    • A. 

      The vertical angulation is excessive

    • B. 

      The vertical angulation is insufficient

    • C. 

      The horizontal angulation is incorrect

    • D. 

      There is a cone-cut

  • 23. 
    A cone-cut occurs when 
    • A. 

      The receptor is underexposed

    • B. 

      The receptor is over exposed

    • C. 

      The PID was not properly aligned with the periapical receptor holder

    • D. 

      The exposure button was not depressed for a sufficient amount of time

  • 24. 
    A thin radiolucent line appears of the film with
    • A. 

      Film creasing 

    • B. 

      Film bending 

    • C. 

      Double exposure

    • D. 

      Patient movement

  • 25. 
    The appearance of a patients finger on the image is called a 
    • A. 

      Hemangioma

    • B. 

      Phalangioma

    • C. 

      Myxoma

    • D. 

      Pericytoma