ARRT Test Prep Exam Questions And
Answers
Main property of x-radiation that makes it potentially hazardous is its ability to? -
Answer Ionize
Describe the damage potential of ionization? - 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? - Answer
Carcinogenesis - Stochastic/Non-Threshold Effect
.1 Rem = ? Seivert - Answer 1 Sievert
0.1 Gray = ? Rad - Answer 10 Rad
1 Gray = ? Rad - Answer 100 Rad
What is Aplastic Anemia? When dose it occur? - 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? - Answer 25 Rads or .25 Gray
What is Cataractogenesis? - Answer Process of Cataract Formation
Cataractogenesis occurs after acute or chronic exposures of how many Rads? -
Answer 200 Rads, 2 Gray
Skin Eyrythemia (Skin Redning) occurs above? - Answer Above 200 Rad, 2 Gray
Temporary Sterility occurs in the adult male at acute doses of how many Rads? -
Answer 250 Rads, 2.5 Gray
Pregnant radiographer should? (3) - 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? - Answer OCCUPATIONAL exposures
only.
Monthly Dosimeter reports does NOT include? - Answer Natural or Background
Radiation
What is the recommended monthly dose-equivalent limit for the fetus in the third
trimester? - Answer 0.5 mSv
.05 Rem
NRCP 116
, ARRT Test Prep Exam Questions And
Answers
Radiation workers cumulative dose-equivalent limit is determined by? - 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? - Answer 50 mSv (5 Rem)
When using a C-Arm mobile unit, the intensification tower should be? - Answer As
close as possible to the patient to reduce patient dose and unnecessary
magnification.
Radiation exposure in air = ? - 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? - Answer Ion Chamber
The quantity of radiation exposure measured by an ionization chamber would be? -
Answer Coulomb/Kilogram
The C/Kg or R is usually the unit measured in? - Answer Air dose
List the 3 measurements that are more appropriate for measuring absorbed doses
for radiation or occupational dose? - Answer Gray (1) - Rad (100)
Seivert (1) - Rem (100)
Curie - Bacquerel
What type of changes are used to measure occupational dose? (3) - Answer
Scintillation
Biological
Chemical
Example of personnel monitor that measures radiation thru chemical change
reaction? - Answer Film Badge - Operate off Gurney-Mott theory.
Explain the Gurney-Mott Theory...? - 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? - Answer No more than a month
Why shouldn't film badges be worn greater than a month? - Answer Extreme
sensitivity to environmental conditions.
TLD's operate thru? - Answer Luminescence (NO chemical rx's occur)
Answers
Main property of x-radiation that makes it potentially hazardous is its ability to? -
Answer Ionize
Describe the damage potential of ionization? - 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? - Answer
Carcinogenesis - Stochastic/Non-Threshold Effect
.1 Rem = ? Seivert - Answer 1 Sievert
0.1 Gray = ? Rad - Answer 10 Rad
1 Gray = ? Rad - Answer 100 Rad
What is Aplastic Anemia? When dose it occur? - 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? - Answer 25 Rads or .25 Gray
What is Cataractogenesis? - Answer Process of Cataract Formation
Cataractogenesis occurs after acute or chronic exposures of how many Rads? -
Answer 200 Rads, 2 Gray
Skin Eyrythemia (Skin Redning) occurs above? - Answer Above 200 Rad, 2 Gray
Temporary Sterility occurs in the adult male at acute doses of how many Rads? -
Answer 250 Rads, 2.5 Gray
Pregnant radiographer should? (3) - 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? - Answer OCCUPATIONAL exposures
only.
Monthly Dosimeter reports does NOT include? - Answer Natural or Background
Radiation
What is the recommended monthly dose-equivalent limit for the fetus in the third
trimester? - Answer 0.5 mSv
.05 Rem
NRCP 116
, ARRT Test Prep Exam Questions And
Answers
Radiation workers cumulative dose-equivalent limit is determined by? - 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? - Answer 50 mSv (5 Rem)
When using a C-Arm mobile unit, the intensification tower should be? - Answer As
close as possible to the patient to reduce patient dose and unnecessary
magnification.
Radiation exposure in air = ? - 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? - Answer Ion Chamber
The quantity of radiation exposure measured by an ionization chamber would be? -
Answer Coulomb/Kilogram
The C/Kg or R is usually the unit measured in? - Answer Air dose
List the 3 measurements that are more appropriate for measuring absorbed doses
for radiation or occupational dose? - Answer Gray (1) - Rad (100)
Seivert (1) - Rem (100)
Curie - Bacquerel
What type of changes are used to measure occupational dose? (3) - Answer
Scintillation
Biological
Chemical
Example of personnel monitor that measures radiation thru chemical change
reaction? - Answer Film Badge - Operate off Gurney-Mott theory.
Explain the Gurney-Mott Theory...? - 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? - Answer No more than a month
Why shouldn't film badges be worn greater than a month? - Answer Extreme
sensitivity to environmental conditions.
TLD's operate thru? - Answer Luminescence (NO chemical rx's occur)
