RADIATION PROTECTION ARRT STUDY GUIDE QUESTION BANK EXAM QUESTIONS EXPERT VERIFIED WITH GUIDED BOOK RATIONALES 2023/2024 GUARANTEED 100% PASS

RADIATION PROTECTION ARRT STUDY GUIDE QUESTION BANK EXAM QUESTIONS EXPERT VERIFIED WITH GUIDED BOOK RATIONALES 2023/2024 GUARANTEED 100% PASS What is used to account for the differences in tissue sensitivit y to ionizing radiation when determining effective dose E Choose all that apply 1. Tissue weighting factors Wt 2. Radiation weighting factors Wr 3. Absorbed dose 1. Tissue weighting factors Wt Bushong 8th edition page 556 The _______ represents the re lative tissue _______ of irradiated material examples muscle vs intestinal epithelium vs bone 1. Tissue weighting factors Wt/radiosensitivity 2. Radiation weighting factors Wr/radiosensitivity 3. Absorbed dose/radiosensitivity 1. Tissue weighting factors Wt/radiosensitivity Bushong 8th edition page 556 The radiation ______ is a number assigned to different types of ______ in order to better determine their effect on tissue examples xray vs alpha particles. 1. Tissue weighting factors Wt/ionizing radiati ons 2. weighting factor Wr/ionizing radiations 3. Absorbed dose/ionizing radiations 2. weighting factor Wr/ionizing radiations Bushong 8th edition page 556 The Wr of the different ionizing radiations depends on the ______ of that particular radiation. 1. BET 2. EBT 3. LET 3. LET Bushong 8th edition page 556 The following formula is used to determine effective dose E: 1. E=Wr x Wt x absorbed dose 2. E=Wr + Wt + absorbed dose 3. E=Wr - Wt - absorbed dose 1. E=Wr x Wt x absorbed dose Bushong 8th edition page 556 According to the national council on radiation protection and measurements NCRP, the monthly gestational dose equivalent limit for embryo/fetus of a pregnant radiographer is a. 0.1 mSv b. 0.5 mSv c. 1.0 mSv d. 5.0 mSv b. 0.5 mSv Bushong 8th edi tion page 557 ________ which expresses the rate at which particulate or photon energy is transferred to the absorber 1. BET 2. EBT 3. LET 3. LET Thompson et al page 419 LET is best defined as Choose all that apply 1. a method of expressing radiation 2. a measure of the rate at which radiation energy is transferred to soft tissue 3. absorption of polyenergetic radiation 1. a method of expressing radiation 2. a measure of the rate at which radiation energy is transferred to soft tissue Thompson et al p age 419 Guidelines state that the occupational gestational dose equivalent limit for embryo/fetus of a pregnant radiographer is ______, not to exceed ______in 1 month a. 5 mSv aka 500 mrem b. 5 mSv aka 200 mrem c. 5 mSv aka 100 mrem a. 5 mSv aka 500 mrem/ 0.5 mSv Bushong 8th edition page 557 According to the NCRP the annual occupational whole body dose equivalent limit is _____ mSv (5 rem or 5,000 mrem). A. 20 B. 30 C. 50 C. 50 mSv Bushong 8th edition page 557 The annual occupational whole body dose eq uivalent limit for students under the age of 18 years is 1 mSv aka 100 mrem or 0.1 rem. a. 10 mSv b. 100 mSv c. 1 mSv c. 1 mSv Bushong 8th edition page 557 The annual occupational dose equivalent limit for the lens of eye is ______ a. 350 mSv aka 15 rem b. 550 mSv aka 15 rem c. 150 mSv aka 15 rem c. 150 mSv aka 15 rem Bushong 8th edition page 557 The annual occupational dose equivalent limit for the thyroid, skin and extremities is _______ a. 200 mSv aka 50 rem. b. 300 mSv aka 50 rem. c. 500 mSv aka 50 rem. c. 500 mSv aka 50 rem Bushong 8th edition page 557 A time of 1.5 minutes is required for a particular fluoroscopic examination, whose exposure rate is 275 mR/h. What is the approximate radiation exposure for the radiologic staf f present in the fluoroscopy room during the examination a. 183 mR b. 68.7 mR c. 18.33 mR d. 6.87 mR d. 6.87 mR {(275 mR/h) / 60minutes } / 1.5 minutes = 6.87 mR Bushong 8th edition page 570 If the exposure rate to an individual standing 4.0 m from a source of radiation is 10 mR/h what will be the dose received after 20 minutes at a distance of 6 m from the source a. 22.5 mR b. 7.5 mR c. 4.44 mR d. 1.48 mR d. 1.48 mR Bushong 8th edition page 570 I1/I2 = D2^2/D1^1 (10mR/h) / ? =6^2 /4^2 =4.44 mR then convert to minutes = 1.48 mR