Rad Bio Final Exam Questions and
Answers
Some consequences of ionization in human cells include:
1. Creation of unstable atoms
2. Production of free electrons
3. Creation of reactive free radicals capable of producing substances poisonous to the cell
a. 1 only
b.2 only
c.3 only
d.1, 2, and 3 - Answer-D
Which of the following is a special form of radiation that is capable of creating electrically charged
particles by removing orbital electrons from the atom of the material with which it interacts?
a.Ionizing radiation
b.Nonionizing radiation
c.Subatomic radiation
d.Ultrasonic radiation - Answer-A
,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
The millisievert (mSv) is equal to _____ of 1 sievert.
a. 1/10
b.1/100
c.1/1000
d.1/10,000 - Answer-C
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 interms 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, & 3 - Answer-D
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
Occupational and non-occupational doses will remain well below maximum allowable levels when:
a. Radiographers and radiologists keep exposure as low as reasonably achievable
b. Referring physicians stop ordering imaging procedures
c.Orders for imaging procedures are determined only by medical insurance companies
d. Patients assume sole responsibility for ordering their imaging procedures - Answer-A
When an imaging procedure is justified in terms of medical necessity, diagnostic efficacy is achieved
when optimal-quality images, revealing the presence or absence of disease, are obtained with:
a. Maximal radiation exposure
b.Minimal radiation exposure
c. Scattered radiation exposure
d. Secondary radiation exposure - Answer-B
Effective radiation protection measures take into consideration which of the following?
1. Both human and environmental physical determinants
2. Technical elements
3. Procedural factors
a.and 2 only
, b.1 and 3 only
c.2 and 3 only
d. 1, 2, & 3 - Answer-D
To implement an effective radiation safety program in a facility that provides imaging services, the
employer must provide all of the following except:
a. An appropriate environment in which it executes an ALARA program and the necessary resources to
support the program
b. X-ray equipment that can produce only very low kilovoltage and very high milliamperage
c. A written policy that describes the ALARA program and identifies management's commitment to
keeping all radiation exposure as low as reasonably achievable
d. Periodic exposure audits to determine ways to lower radiation exposure in the workplace - Answer-B
Electromagnetic radiation can travel through space in the form of a wave but can interact with matter as
a particle of energy. This dual nature is referred to as:
a.Wave attenuation capability
b.Wave-particle interchange ability
c.Wave-particle duality
d.Wave-particle phenomena - Answer-C
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
Answers
Some consequences of ionization in human cells include:
1. Creation of unstable atoms
2. Production of free electrons
3. Creation of reactive free radicals capable of producing substances poisonous to the cell
a. 1 only
b.2 only
c.3 only
d.1, 2, and 3 - Answer-D
Which of the following is a special form of radiation that is capable of creating electrically charged
particles by removing orbital electrons from the atom of the material with which it interacts?
a.Ionizing radiation
b.Nonionizing radiation
c.Subatomic radiation
d.Ultrasonic radiation - Answer-A
,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
The millisievert (mSv) is equal to _____ of 1 sievert.
a. 1/10
b.1/100
c.1/1000
d.1/10,000 - Answer-C
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 interms 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, & 3 - Answer-D
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
Occupational and non-occupational doses will remain well below maximum allowable levels when:
a. Radiographers and radiologists keep exposure as low as reasonably achievable
b. Referring physicians stop ordering imaging procedures
c.Orders for imaging procedures are determined only by medical insurance companies
d. Patients assume sole responsibility for ordering their imaging procedures - Answer-A
When an imaging procedure is justified in terms of medical necessity, diagnostic efficacy is achieved
when optimal-quality images, revealing the presence or absence of disease, are obtained with:
a. Maximal radiation exposure
b.Minimal radiation exposure
c. Scattered radiation exposure
d. Secondary radiation exposure - Answer-B
Effective radiation protection measures take into consideration which of the following?
1. Both human and environmental physical determinants
2. Technical elements
3. Procedural factors
a.and 2 only
, b.1 and 3 only
c.2 and 3 only
d. 1, 2, & 3 - Answer-D
To implement an effective radiation safety program in a facility that provides imaging services, the
employer must provide all of the following except:
a. An appropriate environment in which it executes an ALARA program and the necessary resources to
support the program
b. X-ray equipment that can produce only very low kilovoltage and very high milliamperage
c. A written policy that describes the ALARA program and identifies management's commitment to
keeping all radiation exposure as low as reasonably achievable
d. Periodic exposure audits to determine ways to lower radiation exposure in the workplace - Answer-B
Electromagnetic radiation can travel through space in the form of a wave but can interact with matter as
a particle of energy. This dual nature is referred to as:
a.Wave attenuation capability
b.Wave-particle interchange ability
c.Wave-particle duality
d.Wave-particle phenomena - Answer-C
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
