Diagnostic Imaging (Hgh) - Radiation Safety Quiz

19 Questions | Total Attempts: 355

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Diagnostic Imaging (Hgh) - Radiation Safety Quiz

This quiz is a refresher for radiation safety in the Diagnostic Imaging Department here at the General.   For some of the questions, you should be able to reach deep inside your brain for the answer. For others, you may need to refer to the Radiation Safety Handout that I have provided for you. Remember teamwork is always encouraged. :-)


Questions and Answers
  • 1. 
    Natural Background Radiation accounts for _______ mSv per year.
    • A. 

      1-3

    • B. 

      3-5

    • C. 

      5-8

    • D. 

      8-10

    • E. 

      10-12

  • 2. 
    What is the yearly maximum permissable dose to the skin for a radiation worker?
    • A. 

      50 mSv

    • B. 

      100 mSv

    • C. 

      150 mSv

    • D. 

      200 mSv

    • E. 

      500 mSv

  • 3. 
    What is the Dose equivalent Annual Limit for the whole body for a radiation worker?           
    • A. 

      10 mSv

    • B. 

      20 mSv

    • C. 

      30 mSv

    • D. 

      40 mSv

    • E. 

      50 mSv

  • 4. 
    With respect to pregnant workers, what is the maximum permissible dose to the abdomen during the course of the pregnancy?          
    • A. 

      1 mSv

    • B. 

      2 mSv

    • C. 

      5 mSv

    • D. 

      10 mSv

  • 5. 
    What are three general radiation safety practices to reduce dose? **HINT**   
    • A. 

      Placing the image intensifier as fa away from the patient as possible, never using collimation, keeping the x-ray tube as close to the patient as possible

    • B. 

      Keeping the x-ray tube as far away from the patient as possible, using collimation, placing the image intensifier as far away from the patient as possible

    • C. 

      Time, Distance and Sheilding

    • D. 

      None of the above

  • 6. 
    What is the best way to reduce patient and staff exposure?
    • A. 

      Wearing your lead apron

    • B. 

      Keepig the image intensifier as close to the patient as possible

    • C. 

      Keeping the beam time to a minimum

    • D. 

      Increasing the distance from the radiation source for staff

    • E. 

      Heeellloooo! Ask the bird... They always know.

  • 7. 
              The dose rate at 4 feet from a radiation source is ________ times that of the dose rate at 8 feet from the radiation source.
    • A. 

      2

    • B. 

      3

    • C. 

      4

    • D. 

      8

  • 8. 
    The x-ray tube should be placed ________ in order to minimze skin entrance dose rate to the pateint.  The image intensifier should be _______ in order to decrease the skin entrance exposure rate to the patient and reduce scatter radiation to the staff.
    • A. 

      As far away from the patient as possible / as close to the patient as possible

    • B. 

      As close to the patient as possible / as close to the patient as possible

    • C. 

      As far away from the patient as possible / as far away from the patient as possible

    • D. 

      As close to the patient as possible / as far away from the patient as possible.

  • 9. 
    When should collimation be used and what effect does it have on patient and staff exposure?
    • A. 

      Never, it increase the patient exposure and scatter to staff

    • B. 

      Always, it decreases patient exposure and reduces scatter to staff

    • C. 

      Only in cases of padiatric patients, it decreases the patient exposure and scatter to staff

    • D. 

      Only in cases of large patients, it decreases the patient exposure and scatter to staff

  • 10. 
    Does the size of the patients have any effect on the radiation exposure to the patient and staff?                             
    • A. 

      No, the size of the patient has no effect on the radiation exposure to the patient and staff

    • B. 

      Yes, the larger the patient the higher the radiation exposure to the patient and the lower the radiation exposure to the staff becuase a larger amount of radiation is absorbed by the patient

    • C. 

      Yes, the larger the patient the higher the technique that is needed resulting in an increase dose to patient and staff

  • 11. 
    With respect to fluoscopy scatter, does the operator receive more dose to the eyes with the Image Intensifier away from the operator (diagram A) or with the Image intesifier closer to the operator (diagram B) Diagram ADiagram B
    • A. 

      A

    • B. 

      B

  • 12. 
    What is the Fluoro Time reporting policy followed here at the General?
    • A. 

      Umm.. I think that I will ask the bird again.

    • B. 

      GI and portable c-arm procedures greater than 15 minutes and Angio/interventional procedures greater than 20 minutes.

    • C. 

      GI and portable c-arm procedures greater than 20 minutes and Angio/interventional procedures greater than 30 minutes.

    • D. 

      GI and portable c-arm procedures greater than 10 minutes and Angio/interventional procedures greater than 20 minutes.

  • 13. 
    Who is our Radiation Safety Officer (RSO) here at the General?
    • A. 

      Me. Sandra Grollman

    • B. 

      Dr. Gerald Moran

    • C. 

      Dr. Ian Doris

    • D. 

      Dr. Hema Choudur

  • 14. 
    Who is our Radiation Protection Officer (RPO) here at the General?
    • A. 

      Me. Sandra Grollman

    • B. 

      Dr. Gerald Moran

    • C. 

      Dr. Ian Doris

    • D. 

      Dr. Hema Choudur

  • 15. 
    If you currently wear a dosimeter at the Hamilton General and also work at another facility where you also wear a dosimeter you should:     
    • A. 

      Make sure that you don't mix them up when you have both sets at home on your kitchen table.

    • B. 

      Notify Dr. Gerald Moran so that he can monitor your combined exposure

    • C. 

      Notify Security here at the General

  • 16. 
    Where is the proper location  to store badges/dosimeters after a shift?
    • A. 

      On your yellow isolation gown that you were wearing because you were cold, that you left on a chair

    • B. 

      On your lead apron that you were wearing

    • C. 

      Take them home each and every night so that you know where they are at all times

    • D. 

      Put it in the desognated TLD badge holders (ER X-ray and Locker Room) in non-radiation areas

    • E. 

      Take it to your fishing derby so that you know where it is and it can also act as a fish ID tag too!

  • 17. 
    TLD's must be turned in on time because if they are returned late:    
    • A. 

      The results may be overestimated since a control may not be subtracted

    • B. 

      The results may be underestimated

    • C. 

      A late charge will be assessed if the badge is not returned on time

    • D. 

      A and C

  • 18. 
    If badges are not returned within 90 days of the end of the wear period then we are charged:                                                           (Start picking off the money tree....)
    • A. 

      $5.96 each

    • B. 

      $9.96 each

    • C. 

      $15.96 each

    • D. 

      $20.96 each

  • 19. 
    Which image below demonstrated the best method for hanging your lead?A.    B. C.        D.
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D