RADIOLOGY

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The flashcards below were created by user vanessasoto on FreezingBlue Flashcards.


  1. where is the danger?
    just because it cannot be seen heard or felt doesnt mean your not getting exposed
  2. radiation dangers
    • passes through with no effect
    • cell damage-can be repairable or not repairable
    • kills the cells
  3. what part of the body is of most concern because of rapidly dividing cells?
    • blood system
    • bone marrow
    • reproductive system
    • hair follicles
  4. what are the hazards of ionizing radiation?
    • somatic damage-cell damage
    • genetic damage-more of a concern
  5. somatic cell damage
    • cancer
    • cataracts
    • aplastic anemia-bone marrow shuts down
    • sterility-reproductive system
  6. genetic damage
    • gene mutation
    • not detected until 2nd and 3rd generation
    • birth defects
  7. what does MPD stand for?
    maximum permissible does
  8. what should you never be in?
    the primary beam
  9. with____ _______. you should never have any problems
    proper precaution
  10. what is REM
    then unit to measure exposure-should not exceed 5 REM per year
  11. ______ per year for occupationally exposed persons over the age of 18 years

    A. .05 SV
    B. 5 SV
    C. .005 SV
    D. 0.5 SV
    A. .05 SV
    (this multiple choice question has been scrambled)
  12. dosimeter
    a device that measures the amount of radiation a person has been exposed to
  13. types of dosimeter
    • film badge
    • thermoluminescent dosimeters (TLD)
    • ion chamber
  14. what type of dosimeter do we use?
    film badge
  15. film badge
    • contains a piece of film inside a lightproof envelope
    • light makes film black
    • the darker it is the more exposure you've been through
  16. what is the advantage of the film badge
    • pretty accurate
    • not expensive
  17. what is the disadvantage of the film badge
    • sensitive to  enviromental things like light and heat
    • can get falsely high reading
  18. thermoluminescent dosimeter (TLD)
    • contains lithium fluoride crystals
    • fancy crystals that heats up to see how much you've been exposed to
  19. what is the advantage of TLD
    • keeps data over years
    • very accurate
  20. what is the disadvantage of TLD
    expensive
  21. ion chambers
    • gives off ionizations that shows exposures
    • some are pens that you can put in your pocket
  22. what are the personnel exposure
    • primary beam
    • secondary radiation
    • leakage rediation
  23. what is secondary radiation
    • scatter radiation
    • primary source of exposure for us
    • when it hits an objects and bounces
  24. leakage radiation
    • problem with the machine
    • can't tell if there is a leak
    • it is required to check it every 5 years
  25. what can you use to reduce the exposure
    • chemical restraint
    • restraint devices
    • lead PPE
    • stand upright and arms length
    • use collimation
    • reduce the number of retakes
  26. safety operating procedures
    • adequate technique chart
    • positioning devices
    • protective clothing
    • personal dosimetery devices
    • emergency procedures
    • quality control measures and test
  27. radio opaque
    • x-ray can't go thru it
    • led or metal are examples
    • comes up white
  28. radio loosent
    • x-ray can go thru it
    • comes up black
    • example air
  29. what color will tissue come up
    gray

Card Set Information

Author:
 vanessasoto
ID:
 223641
Filename:
 RADIOLOGY
Updated:
2013-06-13 00:42:47
Tags:
packet radiation safety
Folders:

Description:
packet 3 for 1st test
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