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ARRT Test Prep Questions with Answers.
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ARRT Test Prep Questions with AnswersMain property of x-radiation that makes it potentially hazardous is its ability to? - correct answers:Ionize
Describe the damage potential of ionization? - correct answers: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? - correct
answers:Carcinogenesis - Stochastic/Non-Threshold Effect
.1 Rem = ? Seivert - correct answers:1 Sievert
0.1 Gray = ? Rad - correct answers:10 Rad
1 Gray = ? Rad - correct answers:100 Rad
What is Aplastic Anemia? When dose it occur? - correct answers: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? - correct answers:25 Rads or .25 Gray
What is Cataractogenesis? - correct answers:Process of Cataract Formation
Cataractogenesis occurs after acute or chronic exposures of how many Rads? - correct answers:200 Rads,
2 Gray
Skin Eyrythemia (Skin Redning) occurs above? - correct answers:Above 200 Rad, 2 Gray
,Temporary Sterility occurs in the adult male at acute doses of how many Rads? - correct answers:250
Rads, 2.5 Gray
Pregnant radiographer should? (3) - correct answers: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? - correct answers:OCCUPATIONAL exposures only.
Monthly Dosimeter reports does NOT include? - correct answers:Natural or Background Radiation
What is the recommended monthly dose-equivalent limit for the fetus in the third trimester? - correct
answers:0.5 mSv
.05 Rem
NRCP 116
Radiation workers cumulative dose-equivalent limit is determined by? - correct answers: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? -
correct answers:50 mSv (5 Rem)
When using a C-Arm mobile unit, the intensification tower should be? - correct answers:As close as
possible to the patient to reduce patient dose and unnecessary magnification.
Radiation exposure in air = ? - correct answers: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? - correct answers:Ion Chamber
, The quantity of radiation exposure measured by an ionization chamber would be? - correct
answers:Coulomb/Kilogram
The C/Kg or R is usually the unit measured in? - correct answers:Air dose
List the 3 measurements that are more appropriate for measuring absorbed doses for radiation or
occupational dose? - correct answers:Gray (1) - Rad (100)
Seivert (1) - Rem (100)
Curie - Bacquerel
What type of changes are used to measure occupational dose? (3) - correct answers:Scintillation
Biological
Chemical
Example of personnel monitor that measures radiation thru chemical change reaction? - correct
answers:Film Badge - Operate off Gurney-Mott theory.
Explain the Gurney-Mott Theory...? - correct answers:Describes how an x-ray photon changes silver
halide into atomic silver in the film emulsion--a definite chemical change.
How long can a film badge be worn? - correct answers:No more than a month
Why shouldn't film badges be worn greater than a month? - correct answers:Extreme sensitivity to
environmental conditions.
TLD's operate thru? - correct answers:Luminescence (NO chemical rx's occur)
Pocket dosimeters can only work for? - correct answers:1 day and must be reset everyday.
Upper reading limit of 200-300 rads
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