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RADT465:RadProtect

ARRT Registry Review Covering Radiation Protection

QuestionAnswer
_____________ ____________ ___________ are used to account for the differences in tissue sensitivity to ionizing radiation when determining effective dose E. Tissue Weighting Factors (Saia, Lange Q&A, pg. 135, 159).
What is the monthly gestational dose-equivalent limit for embryo/fetus of a pregnant radiographer? 5 mSv (Saia, Lange Q&A, pg. 135, 159).
What is the approximate entrance skin exposure for the average AP supine abdomen radiograph? 300 mrad (Saia, Lange Q&A, pg. 136, 160).
What is the annual occupational dose-equivalent limit for the lens of the eye? 50 mSv (Saia, Lange Q&A, pg. 136, 161).
If the SID is doubled, how will that affect the intensity of the x-ray photon? It will decrease by four times (Saia, Lange Q&A, pg. 136, 161).
Occupational radiation monitoring is required when it is possible that the individual might receive more that ___________ of the annual dose limit. One-tenth (Saia, Lange Q&A, pg. 136, 161).
_________________is the irradiation of water molecules within the body and their resulting breakdown. Radiolysis (Saia, Lange Q&A, pg. 136, 161-162).
________________ ______________ contributes mostly to occupational exposure. Compton Scatter (Saia, Lange Q&A, pg. 137, 162).
With the mA increased to maintain output intensity, how is the ESE affected as the SSD is increased? The ESE increases (Saia, Lange Q&A, pg. 137, 162-163).
Each time an x-ray beam scatters, its intensity at 1 m from the scattering object is what fraction of its original intensity? 1/1,000 (Saia, Lange Q&A, pg. 137, 163).
The annual occupational whole-body dose-equivalent limit is __________. 50 mSv (Saia, Lange Q&A, pg. 137, 163).
A TLD uses _______________ _______________ crystals. Lithium Fluoride (Saia, Lange Q&A, pg. 137, 163).
Leakage and scattered radiation are examples of what type of radiation? Secondary (Saia, Lange Q&A, pg. 137, 163).
The product of absorbed dose and the correct modifying factor is used to determine __________. rem or Seivert (Saia, Lange Q&A, pg. 138, 164).
Medical and dental radiation accounts for ____% of the general public's exposure to human-made radiation. 90 (Saia, Lange Q&A, pg. 138, 165).
How does filtration affect the primary beam? It increases the average energy of the primary beam (Saia, Lange Q&A, pg. 139, 165).
An OSL dosimeter contains ______________ _____________ detectors. Aluminum Oxide (Saia, Lange Q&A, pg. 139, 165).
_______________ is the term used to describe x-ray photon interaction with matter and the transference of part of the photon's energy to matter. Scattering (Saia, Lange Q&A, pg. 139, 165).
What is the approximate ESE for the average upright PA chest radiography using 115 kVp and a grid? 20 mrad (Saia, Lange Q&A, pg. 139, 165).
The fluoroscopic exposure switch is what kind of switch? Dead-man Switch (Saia, Lange Q&A, pg. 139, 166).
Primary radiation barriers must be at least ___ feet high? 7 (Saia, Lange Q&A, pg. 139, 166).
The annual dose limits for occupationally exposed individuals is valid for _______, ________, and __________ radiations. beta, x-, and gamma (Saia, Lange Q&A, pg. 139, 166).
What unit of measure is used to express ionizing radiation dose to biologic material? rem or Sievert (Saia, Lange Q&A, pg. 140, 167).
What type of dose-response curve relationship represents radiation-induced leukemia and genetic effects? Linear, Non threshold (Saia, Lange Q&A, pg. 141, 167).
Leakage radiation from the x-ray tube must not exceed _____ mR/h. 100 (Saia, Lange Q&A, pg. 141, 169).
Created by: asexsonlyl