ARRT TEST PREP 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 = ? Sievert - CORRECT ANSWER✔✔ - 1 Sievert
0.1 Gray = ? Rad - CORRECT ANSWER✔✔ - 10 Rad
1 Gray = ? Rad - CORRECT ANSWER✔✔ - 100 Rad
What is Aplastic Anaemia? 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
1|P age
,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
2|P age
, 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
3|P age
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 = ? Sievert - CORRECT ANSWER✔✔ - 1 Sievert
0.1 Gray = ? Rad - CORRECT ANSWER✔✔ - 10 Rad
1 Gray = ? Rad - CORRECT ANSWER✔✔ - 100 Rad
What is Aplastic Anaemia? 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
1|P age
,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
2|P age
, 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
3|P age
