ARRT Test Prep questions and answers latest 2023

ARRT Test Prep questions and answers latest 2023Main property of x-radiation that makes it potentially hazardous is its ability to? Ionize Describe the damage potential of ionization? Chain reaction in the human body that may eventually cause biologic damage. X-rays are from the Electric Magnetic Spectrum or radiation energy and is considered harmful in high energy ranges. What is the most likely potential hazard working with diagnostic radiology? Carcinogenesis - Stochastic/Non-Threshold Effect .1 Rem = ? Seivert 1 Sievert 0.1 Gray = ? Rad 10 Rad 1 Gray = ? Rad 100 Rad What is Aplastic Anemia? When dose it occur? All types of blood cells: Red & White 25 Rads A decrease in blood count is the earliest response seen to dose radiation. It can occur at dosease as low as? 25 Rads or .25 Gray What is Cataractogenesis? Process of Cataract Formation Cataractogenesis occurs after acute or chronic exposures of how many Rads? 200 Rads, 2 Gray Skin Eyrythemia (Skin Redning) occurs above? Above 200 Rad, 2 Gray Temporary Sterility occurs in the adult male at acute doses of how many Rads? 250 Rads, 2.5 Gray Pregnant radiographer should? (3) Always practice TDS Has legal right for re-assignment of duty Never confuse collar badge with waist badge Monthly dosimetry reports is based on what? OCCUPATIONAL exposures only. Monthly Dosimeter reports does NOT include? Natural or Background Radiation What is the recommended monthly dose-equivalent limit for the fetus in the third trimester? 0.5 mSv .05 Rem NRCP 116 Radiation workers cumulative dose-equivalent limit is determined by? Age x 10 mSv Age x 1 Rem NCRP 110 What is the Occupational radiation dose equivalent limit for stochastic effects to the whole body? 50 mSv (5 Rem) When using a C-Arm mobile unit, the intensification tower should be? As close as possible to the patient to reduce patient dose and unnecessary magnification. Radiation exposure in air = ? Roentgens - Ionization in air dose measurement. Electrical current being generated by a charge created in air thru ionization by x/gamma radiation is called a? Ion Chamber The quantity of radiation exposure measured by an ionization chamber would be? Coulomb/Kilogram The C/Kg or R is usually the unit measured in? Air dose List the 3 measurements that are more appropriate for measuring absorbed doses for radiation or occupational dose? Gray (1) - Rad (100) Seivert (1) - Rem (100) Curie - Bacquerel What type of changes are used to measure occupational dose? (3) Scintillation