FREE RADIOLOGY AND STUDY GAMES ABOUT

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FREE RADIOLOGY AND STUDY GAMES ABOUT

BIOLOGICAL FEATURES EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -30 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: Which of the following is considered the most radioresistant somatic tissue in adults?

• nerve cells
• epithelial lining of GI tract
• genetic cells of gonads
• white blood cells

Answer:

• nerve cells

Question 2: Which common dose-response curve is used to predict the effects of occupational radiation exposure?

• nonlinear threshold
• linear threshold
• nonlinear nonthreshold
• linear nonthreshold

Answer:

• linear nonthreshold

Question 3: Which is true regarding 10-day rule?

• An abd exam can be given from the 1st day of the period to the 10th day after the start of the

period.

• abd exam given last day of period to 10 days after
• 10 days after ovulation
• 10 days after end of period

Answer:

• An abdomen exam can be given from the 1st day of the menstral period to the 10th day after the start

of the period.Question 4: The longer the span of time between subsequent rad doses, the less its effect is

most closely referred to:

• quality factor
• fractionation
• linear energy transfer
• Law of Bergonie and Tribondeau

Answer:

• fractionation

Question 5: Which of the following best describes genetic significant dose?

• the average yearly gonadal dose to people of reprod age
• the avg yearly dose to people of non-reprod age
• the avg yearly dose to males age 5 to 10
• females age 5 to 10

Answer:

• the avg yearly dose to people of reproductive age

Question 6: Carcinogenesis is a late somatic effect that has been usually associated w/ all of the

following except:

• occupational exposure
• low exposures
• chronic exposures
• nonstochastic effects

Answer:

• nonstochastic effects (acute)

Question 7: Which curve is used as the most preferred method for rad protection standards?

• linear nonthreshold
• linear threshold
• nonlinear nonthreshold
• nonlinear threshold

Answer:

• linear nonthreshold

Question 8: If linear energy transfer rises, the relative biological effectiveness will:

• stay the same
• increase
• decrease
• not be affected

Answer:

• increase

Question 9: Which is primary reason for the 10day rule before giving an abd x-ray?

• 10day period is the time when a female is least likely to be preg
• It is essential not perform exam to prevent infertility
• this 10day period will prevent sterility in males

Answer:

• 10day period is the time when a female is least likely to be preg

Question 10: Increase levels of radiation exposure can cause:

• decrease in immunity against disease
• decrease in lymphocytes
• increase in fertility

Answer:

all Question 11: The Law of Bergonie and Tribondeau refers primarily to which of the following concepts?

• the radiosensitivity of young cells
• radioresistant somatic cells
• occupational late effects
• fractionation

Answer:

• the radiosensitivity of young cells

Question 12: If the relative effectiveness increases, which of the following can be inferred?

• LET decrease
• LET increase
• LET stays the same
• Law of Berg/Trib is responsible for a decrease in LET

Answer:

• LET increases

Question 13: Dose response curves commonly used in radiation protection incl:

• linear, threshold
• linear, nonthreshold
• nonlinear, threshold

Answer:

• linear, threshold and
• linear, non-threshold

Question 14: All of the following are types of beam restrictors except:

• aperture diaphragms
• collimators
• ionization chamber
• cones

Answer:

• ionization chamber

Question 15: Cataractogenesis can occur many years later after being exposed to ionizing rad.

Which dose-response curve is best represented by this:

• linear threshold
• linear nonthreshold
• nonlinear nonthreshold
• nonlinear threshold

Answer:

• nonlinear threshold

Question 16: Leukemia and genetic effects are associated with which common type of dose-response curve?

• nonlinear, nonthreshold
• linear, nonthreshold
• nonlinear, threshold
• linear, threshold

Answer: