Radiation biology Exam Questions With
Correct Answers 100% Verified.
Short-term radiation effects are associated with - Answer✔Large amounts of radiation
absorbed in a short time AND Acute radiation syndrome.
Which of the following types of cells is most radiosensitive - Answer✔Blood
Which of the following are considered to be radioresistant tissues? - Answer✔Salivary glands
One gray is equivalent to ____ rad(s). - Answer✔100
Which of the following mechanisms of radiation injury may occur when x-ray energy is
absorbed by patient tissues? - Answer✔Ionization AND Free radical formation
Which of the following is considered a short-term effect of radiation exposure? - Answer✔Hair-
loss
Cellular injuries following the latent period may include (1) cell death, (2) cessation of mitotic
activity, and/or (3) abnormal mitotic activity. - Answer✔1, 2, and 3
According to the dose-response curve, when dose and damage are plotted on a graph, a ____
relationship is seen. - Answer✔linear, nonthreshold
Examples of nonstochastic effects include - Answer✔Hair-loss and Erythema
A nonthreshold dose-response curve suggests that - Answer✔No matter how small the amount
of radiation received, some biologic damage occurs.
The SI equivalent of the rem is: - Answer✔The sievert
___ is/are the single largest contributor to artificial radiation exposure (0.00053 Sv/year). -
Answer✔Medical radiation
Which of the following statements is true of somatic effects of irradiation - Answer✔Changes
are not transmitted to future generations.
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