LATEST UPDATED LRA 215 FINAL EXAM WITH CORRECT ANSWERS 2026

LATEST UPDATED LRA 215 FINAL EXAM WITH
CORRECT ANSWERS 2026


Studies of the effects of radiation show that low
doses may____ - answer-Stimulate the immune
system
Extend lifespan
Stimulate hormonal responses


As LET _____, the RBE _____. - answer-increases,
increases


Tissue is_____ radiosensitive under high oxygen
conditions and ____ radiosensitive under hypoxic
conditions - answer-more, less


Tissues that are _____ with a _____ metabolic rate
are more radiosensitive. - answer-immature, high

, If a response to radiation is expected, no matter
how small the dose, then that dose-response is
_____. - answer-nonthreshold


The human application of radioprotective agents
would - answer-be fatally toxic


The possible beneficial effect of a small amount of
radiation is called _______ - answer-hormesis


A_____response to radiation is directly proportional
to the dose received - answer-linear


Radiation induced genetic damage follows a____
dose-response relationship - answer-linear-
nonthreshold


The RBE of diagnostic x-rays is equal to __ -
answer-1