ARRT Test Prep, LIMITED X-RAY CORE
ACTUAL QUESTIONS AND CORRECT
ANSWERS
Main 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
Pocket dosimeter uses? - CORRECT ANSWERS✅✅Electrical current as a measurement of
charge.
The type of personnel monitor that could be worn the longest is the? - CORRECT
ANSWERS✅✅OSD
Optical stimulated detector can be worn up to? - CORRECT ANSWERS✅✅3 months and
be sensitive to 2 mR
Leakage radiation should NOT exceed how much mR at 1 meter from the scource? -
CORRECT ANSWERS✅✅100 mR per hr
0.1 Rad per hr
NCRP 102
According to Bushong, tabletop intensity should NOT exceed what? - CORRECT
ANSWERS✅✅2.1 mR per min for each mA operating at 80 kVp.
Under normal modes of operation, fluoroscopic procedures should NOT exceed? -
CORRECT ANSWERS✅✅10 Renkens per min.
What does GSD stand for? - CORRECT ANSWERS✅✅Genetic Significant Dose
What is GSD? - CORRECT ANSWERS✅✅Average gonadal dose received by an exposed
population. It is used to estimate the genetic impact of medical radiation dose on the entire
population.
ACTUAL QUESTIONS AND CORRECT
ANSWERS
Main 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
Pocket dosimeter uses? - CORRECT ANSWERS✅✅Electrical current as a measurement of
charge.
The type of personnel monitor that could be worn the longest is the? - CORRECT
ANSWERS✅✅OSD
Optical stimulated detector can be worn up to? - CORRECT ANSWERS✅✅3 months and
be sensitive to 2 mR
Leakage radiation should NOT exceed how much mR at 1 meter from the scource? -
CORRECT ANSWERS✅✅100 mR per hr
0.1 Rad per hr
NCRP 102
According to Bushong, tabletop intensity should NOT exceed what? - CORRECT
ANSWERS✅✅2.1 mR per min for each mA operating at 80 kVp.
Under normal modes of operation, fluoroscopic procedures should NOT exceed? -
CORRECT ANSWERS✅✅10 Renkens per min.
What does GSD stand for? - CORRECT ANSWERS✅✅Genetic Significant Dose
What is GSD? - CORRECT ANSWERS✅✅Average gonadal dose received by an exposed
population. It is used to estimate the genetic impact of medical radiation dose on the entire
population.
