ARRT Exam Test Prep With 100%
Correct And Verified Answers
Main property of x-radiation that makes it potentially hazardous is
its ability to? - Correct Answer-Ionize
Describe the damage potential of ionization? - Correct Answer-
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 Answer-Carcinogenesis - Stochastic/Non-
Threshold Effect
.1 Rem = ? Seivert - Correct Answer-1 Sievert
0.1 Gray = ? Rad - Correct Answer-10 Rad
1 Gray = ? Rad - Correct Answer-100 Rad
What is Aplastic Anemia? When dose it occur? - Correct Answer-
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 Answer-25
Rads or .25 Gray
What is Cataractogenesis? - Correct Answer-Process of Cataract
Formation
Temporary Sterility occurs in the adult male at acute doses of how
many Rads? - Correct Answer-250 Rads, 2.5 Gray
Pregnant radiographer should? (3) - Correct Answer-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 Answer-
OCCUPATIONAL exposures only.
Monthly Dosimeter reports does NOT include? - Correct Answer-
Natural or Background Radiation
What is the recommended monthly dose-equivalent limit for the
fetus in the third trimester? - Correct Answer-0.5 mSv
.05 Rem
NRCP 116
Radiation workers cumulative dose-equivalent limit is determined
by? - Correct Answer-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 Answer-50 mSv (5 Rem)
, When using a C-Arm mobile unit, the intensification tower should be? -
Correct Answer-As close as possible to the patient to reduce patient dose
and unnecessary magnification.
Radiation exposure in air = ? - Correct Answer-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 Answer-Ion
Chamber
The quantity of radiation exposure measured by an ionization chamber
would be? - Correct Answer-Coulomb/Kilogram
The C/Kg or R is usually the unit measured in? - Correct Answer-Air dose
List the 3 measurements that are more appropriate for measuring
absorbed doses for radiation or occupational dose? - Correct Answer-
Gray (1) - Rad (100)
Seivert (1) - Rem (100)
Curie - Bacquerel
What type of changes are used to measure occupational dose? (3) -
Correct Answer-Scintillation
Biological
Chemical
Example of personnel monitor that measures radiation thru chemical
change reaction? - Correct Answer-Film Badge - Operate off Gurney-Mott
theory.
Explain the Gurney-Mott Theory...? - Correct Answer-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 Answer-No more than a
month
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