1. The latent period in radiation biology is the time between:

    D. exposure to x-radiation and clinical symptoms
  2. a free radical is:

    E. all of the above
  3. direct radiation injury occurs when:

    A. x-ray photons hit critical targets within a cell
  4. indirect radiation injury occurs when:

    C. x-ray photons are absorbed and form toxins
  5. which of the following relationships describes the response of tissues to radiation

    C. linear, non threshold
  6. which of the following factors contributes to radiation injury

    E. all of the above
  7. which of the following statements is correct

    D. longterm effects are seen with small amounts of radiation absorbed in a long period
  8. radiation injuries that are not seen in the persons irradiated but tat occur in future generations are termed?

    • C. genetic effects
    • (oops sorry led you astray)
  9. which of the following is most susceptible to ionizing radiation?

    E. small lymphocyte
  10. the sensitivity of tissues to radiation is determined by?

    D. all of the above! (so choose them all! Good thinkin)
  11. which of the following is considered radioresistant?

    C. mature bone cells (all growed up and learned they resist that radio peer pressure)
  12. an organ that, if damaged, diminishes the quality of an individuals life is termed a:

    A. critical organ
  13. the traditional unit for measuring x-ray exposure in air is termed:

    D. the roentgen
  14. the quality factor (QF) is used to determine which of the following radiation units

    B. the rem
  15. the unit for measuring the absorption of x-rays is termed:

    B. the rad (totally rad absorption man!)
  16. which of the following conversions is correct?

    B. 1 R=2.58 X 10-4 C/kg
  17. which of the following traditional units does not have an SI equivalent
    a. the roentgen
    b. the rad
    c. the rem
    d. quality factor
    e none of the above
    psh hec if I know! ...fine its a. the roentgen
  18. which of the following is used only for x-rays?

    A. the roentgen
  19. which of the following conversions is correct?

    E. all of the above
  20. what is the average dose of background radiation received by an individual in the United States

    A. 150 to 300 mrads (0.0015-0.003 Gy)
  21. what is the greatest contributor to artificial radiation exposure?

    B. medical radiation
  22. the amount of radiation exposure an individual receives varies depending on which of the following factors

    E. all of the above
  23. a single intraoral radiograph (D-speed film, 70kVp, long PID) results in a mean surface exposure of:

    A. 250 mR....(sounds like a good guess to me, talk about the quiz I feel like dropping)
  24. what is the dose at which leukemia induction is most likely to occur?

    D. 5000 mrads (.05 Gy)
  25. which of the following statements is incorrect?

    A. x-radiation is not harmful to living tissues
Card Set
quiz questions ch 4