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ARRT Exam Test Prep, Limited X-Ray Core With 100% Correct And Verified Answers
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ARRT Exam Test Prep, Limited X-Ray Core With 100% Correct And Verified Answers
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ARRT Exam Test Prep, Limited X-RayCore 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
Cataractogenesis occurs after acute or chronic exposures of how many
Rads? - Correct Answer-200 Rads, 2 Gray
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,Skin Eyrythemia (Skin Redning) occurs above? -
Correct Answer-Above 200 Rad, 2 Gray
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.
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,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.
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, How long can a film badge be worn? - Correct Answer-No more than a
month
Why shouldn't film badges be worn greater than a month? - Correct
Answer-Extreme sensitivity to environmental conditions.
TLD's operate thru? - Correct Answer-Luminescence (NO chemical rx's
occur)
Pocket dosimeters can only work for? - Correct Answer-1 day and must be
reset everyday.
Upper reading limit of 200-300 rads
Pocket dosimeter uses? - Correct Answer-Electrical current as a
measurement of charge.
The type of personnel monitor that could be worn the longest is the? -
Correct Answer-OSD
Optical stimulated detector can be worn up to? - Correct Answer-3 months
and be sensitive to 2 mR
Leakage radiation should NOT exceed how much mR at 1 meter from the
scource? - Correct Answer-100 mR per hr
0.1 Rad per hr
NCRP 102
According to Bushong, tabletop intensity should NOT exceed what? -
Correct Answer-2.1 mR per min for each mA operating at 80 kVp.
Under normal modes of operation, fluoroscopic procedures should NOT
exceed? - Correct Answer-10 Renkens per min.
What does GSD stand for? - Correct Answer-Genetic Significant Dose
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