ARRT Test Prep Exam Questions All
Solved New Update
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
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)
Pocket dosimeters can only work for? - Answer- ✔✔1 day and must be reset everyday.
Upper reading limit of 200-300 rads
Pocket dosimeter uses? - Answer- ✔✔Electrical current as a measurement of charge.
The type of personnel monitor that could be worn the longest is the? - Answer- ✔✔OSD
Optical stimulated detector can be worn up to? - Answer- ✔✔3 months and be sensitive
to 2 mR
Leakage radiation should NOT exceed how much mR at 1 meter from the scource? -
Answer- ✔✔100 mR per hr
0.1 Rad per hr
NCRP 102
According to Bushong, tabletop intensity should NOT exceed what? - Answer- ✔✔2.1
mR per min for each mA operating at 80 kVp.
Under normal modes of operation, fluoroscopic procedures should NOT exceed? -
Answer- ✔✔10 Renkens per min.
What does GSD stand for? - Answer- ✔✔Genetic Significant Dose
What is GSD? - 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) - Answer- ✔✔Improve image quality
Reduce patient dose
Reduce scatter radiation
The purpose of reducing added filtration is to reduce radiation dose to? - Answer-
✔✔Patients skin
Solved New Update
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
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)
Pocket dosimeters can only work for? - Answer- ✔✔1 day and must be reset everyday.
Upper reading limit of 200-300 rads
Pocket dosimeter uses? - Answer- ✔✔Electrical current as a measurement of charge.
The type of personnel monitor that could be worn the longest is the? - Answer- ✔✔OSD
Optical stimulated detector can be worn up to? - Answer- ✔✔3 months and be sensitive
to 2 mR
Leakage radiation should NOT exceed how much mR at 1 meter from the scource? -
Answer- ✔✔100 mR per hr
0.1 Rad per hr
NCRP 102
According to Bushong, tabletop intensity should NOT exceed what? - Answer- ✔✔2.1
mR per min for each mA operating at 80 kVp.
Under normal modes of operation, fluoroscopic procedures should NOT exceed? -
Answer- ✔✔10 Renkens per min.
What does GSD stand for? - Answer- ✔✔Genetic Significant Dose
What is GSD? - 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) - Answer- ✔✔Improve image quality
Reduce patient dose
Reduce scatter radiation
The purpose of reducing added filtration is to reduce radiation dose to? - Answer-
✔✔Patients skin
