ARRT Test Prep Questions and Answers
Already Passed
Main property of x-radiation that makes it potentially hazardous is its ability to? ✔✔Ionize
Describe the damage potential of ionization? ✔✔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? ✔✔Carcinogenesis -
Stochastic/Non-Threshold Effect
.1 Rem = ? Seivert ✔✔1 Sievert
0.1 Gray = ? Rad ✔✔10 Rad
1 Gray = ? Rad ✔✔100 Rad
What is Aplastic Anemia? When dose it occur? ✔✔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? ✔✔25 Rads or .25 Gray
What is Cataractogenesis? ✔✔Process of Cataract Formation
Cataractogenesis occurs after acute or chronic exposures of how many Rads? ✔✔200 Rads, 2
Gray
Skin Eyrythemia (Skin Redning) occurs above? ✔✔Above 200 Rad, 2 Gray
Temporary Sterility occurs in the adult male at acute doses of how many Rads? ✔✔250 Rads,
2.5 Gray
Pregnant radiographer should? (3) ✔✔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? ✔✔OCCUPATIONAL exposures only.
Monthly Dosimeter reports does NOT include? ✔✔Natural or Background Radiation
What is the recommended monthly dose-equivalent limit for the fetus in the third trimester?
✔✔0.5 mSv
.05 Rem
NRCP 116
Radiation workers cumulative dose-equivalent limit is determined by? ✔✔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?
✔✔50 mSv (5 Rem)
, When using a C-Arm mobile unit, the intensification tower should be? ✔✔As close as possible
to the patient to reduce patient dose and unnecessary magnification.
Radiation exposure in air = ? ✔✔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? ✔✔Ion Chamber
The quantity of radiation exposure measured by an ionization chamber would be?
✔✔Coulomb/Kilogram
The C/Kg or R is usually the unit measured in? ✔✔Air dose
List the 3 measurements that are more appropriate for measuring absorbed doses for radiation or
occupational dose? ✔✔Gray (1) - Rad (100)
Seivert (1) - Rem (100)
Curie - Bacquerel
Already Passed
Main property of x-radiation that makes it potentially hazardous is its ability to? ✔✔Ionize
Describe the damage potential of ionization? ✔✔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? ✔✔Carcinogenesis -
Stochastic/Non-Threshold Effect
.1 Rem = ? Seivert ✔✔1 Sievert
0.1 Gray = ? Rad ✔✔10 Rad
1 Gray = ? Rad ✔✔100 Rad
What is Aplastic Anemia? When dose it occur? ✔✔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? ✔✔25 Rads or .25 Gray
What is Cataractogenesis? ✔✔Process of Cataract Formation
Cataractogenesis occurs after acute or chronic exposures of how many Rads? ✔✔200 Rads, 2
Gray
Skin Eyrythemia (Skin Redning) occurs above? ✔✔Above 200 Rad, 2 Gray
Temporary Sterility occurs in the adult male at acute doses of how many Rads? ✔✔250 Rads,
2.5 Gray
Pregnant radiographer should? (3) ✔✔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? ✔✔OCCUPATIONAL exposures only.
Monthly Dosimeter reports does NOT include? ✔✔Natural or Background Radiation
What is the recommended monthly dose-equivalent limit for the fetus in the third trimester?
✔✔0.5 mSv
.05 Rem
NRCP 116
Radiation workers cumulative dose-equivalent limit is determined by? ✔✔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?
✔✔50 mSv (5 Rem)
, When using a C-Arm mobile unit, the intensification tower should be? ✔✔As close as possible
to the patient to reduce patient dose and unnecessary magnification.
Radiation exposure in air = ? ✔✔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? ✔✔Ion Chamber
The quantity of radiation exposure measured by an ionization chamber would be?
✔✔Coulomb/Kilogram
The C/Kg or R is usually the unit measured in? ✔✔Air dose
List the 3 measurements that are more appropriate for measuring absorbed doses for radiation or
occupational dose? ✔✔Gray (1) - Rad (100)
Seivert (1) - Rem (100)
Curie - Bacquerel
