ARRT registry review covering Radiation Protection content area
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| Radiation that occurs naturally in the earth's crust and atmosphere are known as what kind of radiation? | Natural background radiation
pg. 226
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| The ________ response relationship is proportional to dose. | Linear
pg. 231
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| Carcinogenesis, cataractogenesis, embryologic effect, and lifespan shortening are examples of what type of effect? | Late effects
pg. 231
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| This law addresses relative tissue sensitivity and states that stem (undifferentiated, or precursor) cells, young or immature cells, and highly mitotic cells are particularly radiosensitive. | Law of Bergonie and Tribondeau
pg. 232
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| This refers to the sum of the products of the dose equivalent to various irradiated organs or tissues and their applicable weighting factors. | Effective dose equivalent
pg. 233
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| The rate at which radiation deposits energy as it passes through tissue is known as _________ __________ ________. | Linear energy transfer (LET)
pg. 233
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| This describes the first 10 days following onset of the menses as the safest time to schedule elective procedures of the abdomen/pelvis. | 10-day rule
pg. 237
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| What is the most effective beam restricting device? | Collimators
pg. 248
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| This type of filtration is built into the x-ray tube and its tube housing. | Inherent filtration
pg. 251
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| Equipment operating above 70 kV must have a minimum total filtration of _____mm Al equivalent. | 2.5
pg. 260
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| The SSD must be at least ___ inches in mobile fluoroscopic equipment. | 12
pg. 261
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| The table top intensity of the fluoroscopic beam must be fewer than ____R/min. | 10
pg. 269
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| A Bucky-slot cover, lead aprons, and lead gloves must all provide at least ____mm Pb equivalent of protection. | 0.25
pg. 268-269
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| This type of barrier consists of walls with 1/16-inch lead thickness and 7-feet height. | Primary protective barriers
pg. 270
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| What is the gestational dose limit to the fetus for the entire gestational period? | 0.5 rem
pg. 272
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| What is the unit of measurement of ionization in air? | Roentgen
pg. 279
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| What is the rad SI unit of measurement? | Gy (gray)
pg. 280
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| What is the rem SI unit of measurement? | Sv (Sievert)
pg. 280
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| This is a number that is assigned to different types of ionizing radiations so that their effects may be better determined. | Radiation weighting factor
pg. 280
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| This represents the relative tissue radiosensitivity of the irradiated material. | Tissue weighting factor
pg. 280
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| What do thermoluminescent dosimeter (TLD) contain to store the energy associated with exposure to ionizing radiation? | Lithium Fluoride (LiF) crystals
pg. 283
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| The dose limit for occupationally exposed individuals 18 years or older is _____. | 5 rem
pg. 286
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| What is the formula to determine the lifetime cumulative exposure for the occupationally exposed individual? | 1 rem X age in years
pg. 287
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| The monthly dose to a fetus must not exceed _____. | 0.05 rem
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| This is defined as leakage and/or scattered radiation. | Secondary radiation
pg. 270
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