ARRT PT 2 (Mosby big exam questions) with correct answers

Increased dose equals increased probability of effects best describes what effect? CORRECT ANSWER Stochastic Effects The annual effective dose limit for the general public, assuming frequent exposure, is...? CORRECT ANSWER 1.0 mSv The use of gonadal shielding on female patients may reduce gonad dose by up to what percentage? CORRECT ANSWER 50% The blood count is depressed following a whole body dose equivalent of at least how many rads? CORRECT ANSWER 0.25 Sv Radiation doses up to ____ are considered relatively low risk to the embryo and fetus. CORRECT ANSWER 0.20 mSv Background radiation is the source of approximately what percent of human exposure? CORRECT ANSWER 50% According to NCRP Report #160, the increase in total exposure is primarily attributed to increased use of: A) MRI B) Diagnostic medical ultrasound C) Fluoro & IR procedures D) CT CORRECT ANSWER D) CT