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ARRT EXAM 2024/2025 WITH 1005 ACCURATE SOLUTIONS
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ARRT EXAM 2024/2025 WITH 1005 ACCURATE SOLUTIONS 1
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ARRT EXAM 2024/2025 WITH 1005ACCURATE SOLUTIONS
Main property of x-radiation that makes it potentially hazardous is its ability to? - Precise Answer
✔✔Ionize
Describe the damage potential of ionization? - Precise 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? - Precise Answer
✔✔Carcinogenesis - Stochastic/Non-Threshold Effect
.1 Rem = ? Seivert - Precise Answer ✔✔1 Sievert
0.1 Gray = ? Rad - Precise Answer ✔✔10 Rad
1 Gray = ? Rad - Precise Answer ✔✔100 Rad
What is Aplastic Anemia? When dose it occur? - Precise 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? - Precise Answer ✔✔25 Rads or .25 Gray
What is Cataractogenesis? - Precise Answer ✔✔Process of Cataract Formation
Cataractogenesis occurs after acute or chronic exposures of how many Rads? - Precise Answer ✔✔200
Rads, 2 Gray
,Skin Eyrythemia (Skin Redning) occurs above? - Precise Answer ✔✔Above 200 Rad, 2 Gray
Temporary Sterility occurs in the adult male at acute doses of how many Rads? - Precise Answer ✔✔250
Rads, 2.5 Gray
Pregnant radiographer should? (3) - Precise 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? - Precise Answer ✔✔OCCUPATIONAL exposures only.
Monthly Dosimeter reports does NOT include? - Precise Answer ✔✔Natural or Background Radiation
What is the recommended monthly dose-equivalent limit for the fetus in the third trimester? - Precise
Answer ✔✔0.5 mSv
.05 Rem
NRCP 116
Radiation workers cumulative dose-equivalent limit is determined by? - Precise 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? -
Precise Answer ✔✔50 mSv (5 Rem)
When using a C-Arm mobile unit, the intensification tower should be? - Precise Answer ✔✔As close as
possible to the patient to reduce patient dose and unnecessary magnification.
,Radiation exposure in air = ? - Precise 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? - Precise Answer ✔✔Ion Chamber
The quantity of radiation exposure measured by an ionization chamber would be? - Precise Answer
✔✔Coulomb/Kilogram
The C/Kg or R is usually the unit measured in? - Precise Answer ✔✔Air dose
List the 3 measurements that are more appropriate for measuring absorbed doses for radiation or
occupational dose? - Precise Answer ✔✔Gray (1) - Rad (100)
Seivert (1) - Rem (100)
Curie - Bacquerel
What type of changes are used to measure occupational dose? (3) - Precise Answer ✔✔Scintillation
Biological
Chemical
Example of personnel monitor that measures radiation thru chemical change reaction? - Precise Answer
✔✔Film Badge - Operate off Gurney-Mott theory.
Explain the Gurney-Mott Theory...? - Precise 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? - Precise Answer ✔✔No more than a month
Why shouldn't film badges be worn greater than a month? - Precise Answer ✔✔Extreme sensitivity to
environmental conditions.
TLD's operate thru? - Precise Answer ✔✔Luminescence (NO chemical rx's occur)
, Pocket dosimeters can only work for? - Precise Answer ✔✔1 day and must be reset everyday.
Upper reading limit of 200-300 rads
Pocket dosimeter uses? - Precise Answer ✔✔Electrical current as a measurement of charge.
The type of personnel monitor that could be worn the longest is the? - Precise Answer ✔✔OSD
Optical stimulated detector can be worn up to? - Precise Answer ✔✔3 months and be sensitive to 2 mR
Leakage radiation should NOT exceed how much mR at 1 meter from the scource? - Precise Answer
✔✔100 mR per hr
0.1 Rad per hr
NCRP 102
According to Bushong, tabletop intensity should NOT exceed what? - Precise Answer ✔✔2.1 mR per min
for each mA operating at 80 kVp.
Under normal modes of operation, fluoroscopic procedures should NOT exceed? - Precise Answer
✔✔10 Renkens per min.
What does GSD stand for? - Precise Answer ✔✔Genetic Significant Dose
What is GSD? - Precise Answer ✔✔Average gonadal dose received by an exposed population. It is used
to estimate the genetic impact of medical radiation dose on the entire population.
Beam limiting devices will? (3) - Precise Answer ✔✔Improve image quality
Reduce patient dose
Reduce scatter radiation
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