Radiation protection Final Exam Questions With All
Correct Answers
/. Patients who have an understanding of the medical benefits of an imaging procedure
because they received factual information about the study before having the
examination are more likely to:
A. assume a small risk of biologic damage but not overcome any radiation phobia they
may have.
B. cancel their scheduled procedure because they are not willing to assume a small risk
of biologic damage
C. overcome any radiation phobia but not be willing to assume a small risk of possible
biologic damage
D. overcome any radiation phobia and be willing to assume a small risk of possible
biologic damage - Answer-D. overcome any radiation phobia and be willing to assume a
small risk of possible biologic damage
/.Terrestrial radiation includes which of the following sources?
A. Long-lived radioactive elements, such as uranium-238, radium-226, and thorium-232
that are present in variable quantities in the crust of the earth
B. Radioactive fallout from nuclear weapons tests in which detonation occurred above
ground
C. The sun and other stars
D. Video display terminals and television receivers - Answer-A. Long-lived radioactive
elements, such as uranium-238, radium-226, and thorium-232 that are present in
variable quantities in the crust of the earth
/.When exposed to high radon levels in the home, which of the following groups of
people have the highest risk of developing lung cancer?
A. Infant
B. Toddlers
C. Smokers
,D. Nonsmokers - Answer-C. Smokers
/.Which of the following helps shield the global population from exposure to essentially
all high-energy, bombarding cosmic rays?
A. Clouds
B. Fog
C. Earth's atmosphere and magnetic field
D. Smog - Answer-C. Earth's atmosphere and magnetic field
/.Which of the following is considered by the EPA to be the second leading cause of
lung cancer in the United States?
A. Annual posteroanterior and lateral chest radiographs
B. Cosmic ray exposure
C. Radon exposure
D. Fluoroscopic examination of the upper gastrointestinal tract - Answer-C. Radon
exposure
/.Which of the following are forms of electromagnetic radiation?
1. Microwaves
2. Visible light
3. X-rays
A. 1 and 2 only
B. 1 and 3 only
C. 2 and 3 only
D. 1, 2, and 3 - Answer-D. 1, 2, and 3
/.The first decay product of radium is:
A. cesium
B. radon
C. strontium
,D. x-ray - Answer-B. radon
/.The millisievert (mSv) is equal to _____ of 1 sievert.
A. 1/10
B. 1/100
C. 1/1000
D. 1/10,000 - Answer-C. 1/1000
/.The advantages of the BERT method are:
1. it does not imply radiation risk; it is simply a means for comparison
2. it emphasizes that radiation is an innate part of our environment
3. the answer given in terms of BERT is easy for the patient to comprehend
A. 1 and 2 only
B. 1 and 3 only
C. 2 and 3 only
D. 1, 2, and 3 - Answer-D. 1, 2, and 3
/.If a patient asks a radiographer a question about the potential risk of radiation
exposure associated with a specific x-ray procedure, the radiographer should:
A. use his or her intelligence and knowledge to answer the question honestly and
provide a suitable example that compares the amount of radiation received from the
procedure in question with natural background radiation received over a given period of
time
B. avoid the patient's question by changing the subject
C. tell the patient that it is unethical to discuss such concerns
D. refuse to answer the question and recommend that he or she speak with the referring
physician - Answer-A. use his or her intelligence and knowledge to answer the question
honestly and provide a suitable example that compares the amount of radiation
received from the procedure in question with natural background radiation received over
a given period of time
/.The symbol Z indicates the:
A. atomic number of an atom
, B. atomic weight of an atom
C. fluorescent yield
D. number of vacancies in an atomic shell - Answer-A. atomic number of an atom
/.Filtration is sometimes referred to as:
A. Softening the beam
B. Hardening the beam
C. Directing the beam
D. Collimation - Answer-B. Hardening the beam
/.As mAs increases, the penetrability of the beam increases.
A. True
B. False - Answer-B. False
/.The main controller of beam quantity is mAs.
A. True
B. False - Answer-A. True
/.The degree to which the diagnostic study accurately reveals the presence or absence
of disease in the patient is the:
A. biologic damage
B. BERT
C. diagnostic efficacy
D. dose equivalent - Answer-C. diagnostic efficacy
/.Which of the following are natural sources of ionizing radiation?
A. medical radiation and cosmic radiation
B. radioactive elements in the earth and in the human body
Correct Answers
/. Patients who have an understanding of the medical benefits of an imaging procedure
because they received factual information about the study before having the
examination are more likely to:
A. assume a small risk of biologic damage but not overcome any radiation phobia they
may have.
B. cancel their scheduled procedure because they are not willing to assume a small risk
of biologic damage
C. overcome any radiation phobia but not be willing to assume a small risk of possible
biologic damage
D. overcome any radiation phobia and be willing to assume a small risk of possible
biologic damage - Answer-D. overcome any radiation phobia and be willing to assume a
small risk of possible biologic damage
/.Terrestrial radiation includes which of the following sources?
A. Long-lived radioactive elements, such as uranium-238, radium-226, and thorium-232
that are present in variable quantities in the crust of the earth
B. Radioactive fallout from nuclear weapons tests in which detonation occurred above
ground
C. The sun and other stars
D. Video display terminals and television receivers - Answer-A. Long-lived radioactive
elements, such as uranium-238, radium-226, and thorium-232 that are present in
variable quantities in the crust of the earth
/.When exposed to high radon levels in the home, which of the following groups of
people have the highest risk of developing lung cancer?
A. Infant
B. Toddlers
C. Smokers
,D. Nonsmokers - Answer-C. Smokers
/.Which of the following helps shield the global population from exposure to essentially
all high-energy, bombarding cosmic rays?
A. Clouds
B. Fog
C. Earth's atmosphere and magnetic field
D. Smog - Answer-C. Earth's atmosphere and magnetic field
/.Which of the following is considered by the EPA to be the second leading cause of
lung cancer in the United States?
A. Annual posteroanterior and lateral chest radiographs
B. Cosmic ray exposure
C. Radon exposure
D. Fluoroscopic examination of the upper gastrointestinal tract - Answer-C. Radon
exposure
/.Which of the following are forms of electromagnetic radiation?
1. Microwaves
2. Visible light
3. X-rays
A. 1 and 2 only
B. 1 and 3 only
C. 2 and 3 only
D. 1, 2, and 3 - Answer-D. 1, 2, and 3
/.The first decay product of radium is:
A. cesium
B. radon
C. strontium
,D. x-ray - Answer-B. radon
/.The millisievert (mSv) is equal to _____ of 1 sievert.
A. 1/10
B. 1/100
C. 1/1000
D. 1/10,000 - Answer-C. 1/1000
/.The advantages of the BERT method are:
1. it does not imply radiation risk; it is simply a means for comparison
2. it emphasizes that radiation is an innate part of our environment
3. the answer given in terms of BERT is easy for the patient to comprehend
A. 1 and 2 only
B. 1 and 3 only
C. 2 and 3 only
D. 1, 2, and 3 - Answer-D. 1, 2, and 3
/.If a patient asks a radiographer a question about the potential risk of radiation
exposure associated with a specific x-ray procedure, the radiographer should:
A. use his or her intelligence and knowledge to answer the question honestly and
provide a suitable example that compares the amount of radiation received from the
procedure in question with natural background radiation received over a given period of
time
B. avoid the patient's question by changing the subject
C. tell the patient that it is unethical to discuss such concerns
D. refuse to answer the question and recommend that he or she speak with the referring
physician - Answer-A. use his or her intelligence and knowledge to answer the question
honestly and provide a suitable example that compares the amount of radiation
received from the procedure in question with natural background radiation received over
a given period of time
/.The symbol Z indicates the:
A. atomic number of an atom
, B. atomic weight of an atom
C. fluorescent yield
D. number of vacancies in an atomic shell - Answer-A. atomic number of an atom
/.Filtration is sometimes referred to as:
A. Softening the beam
B. Hardening the beam
C. Directing the beam
D. Collimation - Answer-B. Hardening the beam
/.As mAs increases, the penetrability of the beam increases.
A. True
B. False - Answer-B. False
/.The main controller of beam quantity is mAs.
A. True
B. False - Answer-A. True
/.The degree to which the diagnostic study accurately reveals the presence or absence
of disease in the patient is the:
A. biologic damage
B. BERT
C. diagnostic efficacy
D. dose equivalent - Answer-C. diagnostic efficacy
/.Which of the following are natural sources of ionizing radiation?
A. medical radiation and cosmic radiation
B. radioactive elements in the earth and in the human body
