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WorksheetsRad Bio Module 1 Test Prep
Total questions: 22
Worksheet time: 11mins
Typically, people are more willing to accept a risk if they perceive that the potential benefit to be obtained is
greater than the risk involved.
equal to the risk involved.
less than the risk involved.
typically, people are not willing to accept risk no matter how great the benefit may be.
Which of the following radiation quantities is intended to be the best overall measure of the biologic effects of ionizing radiation?
Exposure
Effective dose
Absorbed dose
There is no radiation quantity that is intended to be the best overall measure of the biologic effects of ionizing radiation.
Which of the following provides the basis for determining whether an imaging procedure or practice is justified?
ALARA concept
BERT method
Diagnostic efficacy
NEXT program
The cardinal principles of radiation protection include which of the following?
Time
Distance
Shielding
All the options
The millisievert (mSv) is equal to
1/10 of a sievert.
1/100 of a sievert.
1/1000 of a sievert.
1/10,000 of a sievert.
How is dose area product usually specified?
In coulomb per kilogram
In ergs per gram
In subunits of millisievert
In units of mGy-cm^2
Which of the following formulas is used to calculate effective dose?
EfD = (D × W_R)_1 + (D × W_R)_2 + (D × W_R)_3
EfD = D × W_R × W_T
EfD = D ÷ W_R × W_T
All of the options
If 400 people receive an average effective dose of 0.25 Sv, what is the collective effective dose?
100 person-Sv
200 person-Sv
800 person-Sv
1600 person-Sv
What theory relates the ionization produced in a small cavity within an irradiated medium or object to the energy absorbed in that medium as a result of its radiation exposure?
Air kerma
Bragg-Gray
Committed dose
Tissue kerma
Cataract formation, fibrosis, reduced fertility, and sterility are classified as
early tissue reactions of ionizing radiation.
late tissue reactions of ionizing radiation.
hereditary effects of ionizing radiation.
stochastic effects of ionizing radiation.
In the SI system, an energy absorption of 1 J/kg of matter in the irradiated object equals which of the following?
10 Sv
5 C/kg
1 mSv
1 Gy
1 gray equals
10 J/kg.
100 J/kg.
100 cGy.
1000 cGy.
What do radiation weighting factors take into consideration?
The overall risk of exposure to humans from ionizing radiation
Both the internal and external dose measurements
The fact that some types of radiation are more efficient at causing biologic damage than other types of radiation for a given dose
All of the options
As the intensity of x-ray exposure of the air volume increases, the number of electron–ion pairs produced
also increases.
decreases considerably.
decreases slightly.
remains the same.
The whole-body TEDE regulatory limit for exposed personnel is __________ and __________ for the general public.
0.05 Sv; 0.001 Sv
0.15 Sv; 0.015 Sv
0.25 Sv; 0.025 Sv
0.5 Sv; 0.1 Sv
Which of the following is essentially the sum total of air kerma over the exposed area of the patient’s body surface?
Absorbed dose
Dose area product
Effective dose
Equivalent dose
0.2 Gy equals
2 mGy.
20 mGy.
200 mGy.
2000 mGy.
Electromagnetic radiation travels or propagates through space in the form of a wave but can interact with matter as a particle of energy called a photon. This dual nature is referred to as
wave attenuation capability.
wave-particle interchange ability.
wave-particle duality.
wave-particle phenomena.
What is the total average annual radiation equivalent dose for estimated levels of radiation exposure for humans?
2.3 mSv
3.1 mSv
5.5 mSv
8.2 mSv
A flight on a typical commercial airliner results in an equivalent dose rate of
0.001 to 0.005 mSv/hr.
0.005 to 0.01 mSv/hr.
0.02 to 0.04 mSv/hr.
0.05 to 0.09 mSv/hr.
In the electromagnetic spectrum, higher frequencies are associated with
longer wavelengths and lower energies.
longer wavelengths and higher energies.
shorter wavelengths and lower energies.
shorter wavelengths and higher energies.
Which of the following radiation exposures is considered by the Environmental Protection Agency to be the second leading cause of lung cancer in the United States?
Annual PA and Lateral chest x-rays
Cosmic ray exposure
Radon exposure
A fluoroscopic examination of the upper gastrointestinal system
