2nd chance

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  1. Examples of late effects of ionizing radiation on humans include

    1. leukemia

    2. local tissue damage

    3. malignant disease






     
    1 only 



     
    1 and 2 only 



     
    1 and 3 only 



     
    1, 2, and 3
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    •  
    • 1, 2, and 3
  2. Which of the following is (are) possible long-term somatic effects of radiation exposure?

    1. Blood changes

    2. Cataractogenesis

    3. Embryologic effects






     
    1 only 



     
    1 and 2 only 



     
    2 and 3 only 



     
    1, 2, and 3
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    •  
    • 2 and 3 only
  3. <correct.opt style="color: rgb(78, 78, 78); font-family: 'Open Sans'; font-size: 15px; line-height: 22.5px;"> Late or long-term effects of radiation can occur in tissues that have survived a previous irradiation months or years earlier. These late effects, such as carcinogenesis and genetic effects, are "_____ nothing" effects
    all-or
  4. All the following radiation-exposure responses exhibit a nonlinear threshold dose–response relationship except




     
    skin erythema 



     
    hematologic depression 



     
    radiation lethality 



     
    leukemia
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    • leukemia
  5. Stochastic effects of radiation are those that

    1. have a threshold

    2. may be described as “all-or-nothing” effects

    3. are late effects






     
    1 only 



     
    1 and 2 only 



     
    2 and 3 only 



     
    1, 2, and 3
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    •  
    • 2 and 3 only
  6. Which of the following dose-response curve characteristics represent genetic and some somatic responses to radiation?















    1. Linear
    2. Nonthreshold
    3. Sigmoidal






     
    1 only 



     
    1 and 2 only 



     
    1 and 3 only 



     
    1, 2, and 3
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    • 1 and 2 only
  7. Which type of dose–response relationship represents radiation-induced leukemia and genetic effects?




     
    Linear, threshold 



     
    Nonlinear, threshold 



     
    Linear, nonthreshold 



     
    Nonlinear, nonthreshold
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    • Linear, nonthreshold
  8. Examples of stochastic effects of radiation exposure include

    1. radiation-induced malignancy

    2. genetic effects

    3. leukemia






     
    1 only 



     
    1 and 2 only 



     
    2 and 3 only 



     
    1, 2, and 3
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    •  
    •  
    • 1, 2, and 3
  9. Which of the dose–response curves seen in Figure 3–4 represents possible genetic effects of ionizing radiation?

    Image Upload






     
    Dose–response curve A 



     
    Dose–response curve B 



     
    Dose–response curve C 



     
    None of these
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    • Dose–response curve A
  10. The late effects of radiation are considered to

    1. have no threshold dose.

    2. be directly related to dose.

    3. occur within hours of exposure.






     
    1 only 



     
    1 and 2 only 



     
    2 and 3 only 



     
    1, 2, and 3
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    • 1 and 2 only
  11. Somatic effects of radiation refer to effects that are manifested




     
    in the descendants of the exposed individual 



     
    during the life of the exposed individual 



     
    in the exposed individual and his or her descendants 



     
    in the reproductive cells of the exposed individual
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    •  
    • during the life of the exposed individual
  12. Late radiation-induced somatic effects include

    1. thyroid cancers

    2. cataractogenesis

    3. skin cancers






     
    1 only 



     
    1 and 2 only 



     
    2 and 3 only 



     
    1, 2, and 3
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    •  
    •  
    • 1, 2, and 3
  13. Which of the following is (are) used to account for the differences in tissue characteristics when determining effective dose to biologic material?

    1. Tissue weighting factors (W )

    2. Radiation weighting factors (W )

    3. Absorbed dose






     
    1 only 



     
    1 and 2 only 



     
    2 and 3 only 



     
    1, 2, and 3
    • Image Upload
    •  
    •  
    • 1 only
Author:
McCrae
ID:
304554
Card Set:
2nd chance
Updated:
2015-06-29 04:32:08
Tags:
rad
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Description:
rad
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