Test bank For Radiation Safety and Radiobiology in Medical
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li Imaging, 10th Edition (Mary Alice Statkiewicz Sherer & Paula J.
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li Visconti) Questions with Answers & Explanations|| All 1-16
li li li li li li li
li Chapters|| Complete Guide A+
li li li
bestguidestuvia
,Test Bank: Radiation Protection in Medical Radiography (10th
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Edition)
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Chapter 1: Introduction to Radiation Protection li li li li li
Consequences of Ionization in Human Cells li li li li li
1: Which of the following is a consequence of ionization in human cells?
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A) Production of stable atoms
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B) Creation of reactive free radicals capable of producing substances poisonous to the cell
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C) Decreased electron activity
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D) Prevention of new biologic molecule formation
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*Answer: B li
Explanation:: Ionization in human cells creates unstable atoms, produces free electrons,
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li generates low-energy x-ray photons, creates reactive free radicals that can produce cell-
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poisonous substances, creates detrimental new biologic molecules, and causes injury that may
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li manifest as abnormal or loss of function. These six consequences are fundamental to
li li li li li li li li li li li li
li understanding radiation-induced cellular damage. li li li
2: When ionizing radiation passes through matter, it produces:
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A) Neutrons and protons
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B) Positively and negatively charged particles (ions)
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C) Only positively charged particles
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D) Only negatively charged particles
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*Answer: B li
Explanation:: Ionizing radiation produces both positively and negatively charged particles (ions)
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,li when passing through matter. These ions are the primary event that may cause injury in normal
li li li li li li li li li li li li li li li
li biologic tissue, as the production of ions disrupts normal cellular function and structure.
li li li li li li li li li li li li
3: The production of ions in human cells is significant because it:
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A) Enhances cellular reproduction
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B) May cause injury in normal biologic tissue
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C) Increases cellular metabolism
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D) Prevents genetic mutations
li li li
*Answer: B li
Explanation:: The production of ions is the event that may cause injury in normal biologic tissue.
li li li li li li li li li li li li li li li
li This understanding forms the basis for radiation protection practices, as controlling ionization
li li li li li li li li li li li
li helps minimize potential cellular damage during imaging procedures.
li li li li li li li
4: Radiologic technologists and radiologists minimize the possibility of causing damage to healthy
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li biologic tissue by: li li
A) Increasing exposure time
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B) Using protective devices whenever possible
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C) Avoiding the use of technical exposure factors
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D) Standing close to the x-ray tube during exposures
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*Answer: B li
Explanation:: Radiologic technologists and radiologists are educated in safe operation of
li li li li li li li li li li
li radiation-producing equipment, use protective devices whenever possible, follow established li li li li li li li li
li procedures, and select technical exposure factors that significantly reduce radiation exposure to
li li li li li li li li li li li
li patients and themselves. These good practices minimize the possibility of causing damage to
li li li li li li li li li li li li
li healthy biologic tissue. li li
, 5: Which of the following best defines unnecessary radiation exposure?
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A) Any exposure that benefits the patient clinically
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B) Any exposure that does not benefit a person in terms of diagnostic information needed for
li li li li li li li li li li li li li li li
li clinical management or does not enhance study quality
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C) Only exposure that exceeds 50 mSv per year
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D) Only exposure received from natural background sources
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*Answer: B li
Explanation:: Unnecessary radiation exposure is defined as any radiation exposure that does not li li li li li li li li li li li li
li benefit a person in terms of diagnostic information obtained for clinical management of medical
li li li li li li li li li li li li li
li needs or any radiation exposure that does not enhance the quality of the study. This definition
li li li li li li li li li li li li li li li
li guides the ALARA principle in medical imaging.
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6: The ALARA principle stands for:
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A) As Long As Radiation is Avoidable
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B) As Low As Reasonably Achievable
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C) Always Limit Adult Radiation Amounts
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D) Annual License for Radiation Administration
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*Answer: B li
Explanation:: ALARA is an acronym for "as low as reasonably achievable," which is synonymous li li li li li li li li li li li li li
li with optimization for radiation protection (ORP). The intention behind these concepts is to keep
li li li li li li li li li li li li li
li radiation exposure and consequent dose to the lowest possible level. This philosophy should be a
li li li li li li li li li li li li li li
li main part of every health care facility's radiation control program.
li li li li li li li li li
li li li li li li li li
li Imaging, 10th Edition (Mary Alice Statkiewicz Sherer & Paula J.
li li li li li li li li li
li Visconti) Questions with Answers & Explanations|| All 1-16
li li li li li li li
li Chapters|| Complete Guide A+
li li li
bestguidestuvia
,Test Bank: Radiation Protection in Medical Radiography (10th
li li li li li li li
Edition)
li
Chapter 1: Introduction to Radiation Protection li li li li li
Consequences of Ionization in Human Cells li li li li li
1: Which of the following is a consequence of ionization in human cells?
li li li li li li li li li li li li
A) Production of stable atoms
li li li li
B) Creation of reactive free radicals capable of producing substances poisonous to the cell
li li li li li li li li li li li li li
C) Decreased electron activity
li li li
D) Prevention of new biologic molecule formation
li li li li li li
*Answer: B li
Explanation:: Ionization in human cells creates unstable atoms, produces free electrons,
li li li li li li li li li li
li generates low-energy x-ray photons, creates reactive free radicals that can produce cell-
li li li li li li li li li li li
poisonous substances, creates detrimental new biologic molecules, and causes injury that may
li li li li li li li li li li li
li manifest as abnormal or loss of function. These six consequences are fundamental to
li li li li li li li li li li li li
li understanding radiation-induced cellular damage. li li li
2: When ionizing radiation passes through matter, it produces:
li li li li li li li li
A) Neutrons and protons
li li li
B) Positively and negatively charged particles (ions)
li li li li li li
C) Only positively charged particles
li li li li
D) Only negatively charged particles
li li li li
*Answer: B li
Explanation:: Ionizing radiation produces both positively and negatively charged particles (ions)
li li li li li li li li li li
,li when passing through matter. These ions are the primary event that may cause injury in normal
li li li li li li li li li li li li li li li
li biologic tissue, as the production of ions disrupts normal cellular function and structure.
li li li li li li li li li li li li
3: The production of ions in human cells is significant because it:
li li li li li li li li li li li
A) Enhances cellular reproduction
li li li
B) May cause injury in normal biologic tissue
li li li li li li li
C) Increases cellular metabolism
li li li
D) Prevents genetic mutations
li li li
*Answer: B li
Explanation:: The production of ions is the event that may cause injury in normal biologic tissue.
li li li li li li li li li li li li li li li
li This understanding forms the basis for radiation protection practices, as controlling ionization
li li li li li li li li li li li
li helps minimize potential cellular damage during imaging procedures.
li li li li li li li
4: Radiologic technologists and radiologists minimize the possibility of causing damage to healthy
li li li li li li li li li li li li
li biologic tissue by: li li
A) Increasing exposure time
li li li
B) Using protective devices whenever possible
li li li li li
C) Avoiding the use of technical exposure factors
li li li li li li li
D) Standing close to the x-ray tube during exposures
li li li li li li li li
*Answer: B li
Explanation:: Radiologic technologists and radiologists are educated in safe operation of
li li li li li li li li li li
li radiation-producing equipment, use protective devices whenever possible, follow established li li li li li li li li
li procedures, and select technical exposure factors that significantly reduce radiation exposure to
li li li li li li li li li li li
li patients and themselves. These good practices minimize the possibility of causing damage to
li li li li li li li li li li li li
li healthy biologic tissue. li li
, 5: Which of the following best defines unnecessary radiation exposure?
li li li li li li li li li
A) Any exposure that benefits the patient clinically
li li li li li li li
B) Any exposure that does not benefit a person in terms of diagnostic information needed for
li li li li li li li li li li li li li li li
li clinical management or does not enhance study quality
li li li li li li li
C) Only exposure that exceeds 50 mSv per year
li li li li li li li li
D) Only exposure received from natural background sources
li li li li li li li
*Answer: B li
Explanation:: Unnecessary radiation exposure is defined as any radiation exposure that does not li li li li li li li li li li li li
li benefit a person in terms of diagnostic information obtained for clinical management of medical
li li li li li li li li li li li li li
li needs or any radiation exposure that does not enhance the quality of the study. This definition
li li li li li li li li li li li li li li li
li guides the ALARA principle in medical imaging.
li li li li li li
6: The ALARA principle stands for:
li li li li li
A) As Long As Radiation is Avoidable
li li li li li li
B) As Low As Reasonably Achievable
li li li li li
C) Always Limit Adult Radiation Amounts
li li li li li
D) Annual License for Radiation Administration
li li li li li
*Answer: B li
Explanation:: ALARA is an acronym for "as low as reasonably achievable," which is synonymous li li li li li li li li li li li li li
li with optimization for radiation protection (ORP). The intention behind these concepts is to keep
li li li li li li li li li li li li li
li radiation exposure and consequent dose to the lowest possible level. This philosophy should be a
li li li li li li li li li li li li li li
li main part of every health care facility's radiation control program.
li li li li li li li li li
