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ARRT Test Prep, LIMITED X-RAY CORE UPDATED Exam Questions and CORRECT Answers

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ARRT Test Prep, LIMITED X-RAY CORE UPDATED Exam Questions and CORRECT 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 ma...

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  • August 6, 2024
  • 47
  • 2024/2025
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MGRADES
ARRT Test Prep, LIMITED X-RAY CORE
UPDATED Exam Questions and
CORRECT 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

,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.

,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


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


What is GSD? - CORRECT 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) - CORRECT ANSWER- Improve image quality
Reduce patient dose
Reduce scatter radiation

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