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Chapter 1. Introduction to Radiation Protection
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Chapter 2. Radiation: Types, Sources, and Doses Receive
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,dChapter 3. Interaction of X-Radiation with Matter
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Chapter 4. Radiation Quantities and Unit
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sChapter 5. Radiation Monitoring
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Chapter 6. Overview of Cell Biology
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Chapter 7. Molecular and Cellular Radiation Biology
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Chapter 8. Early Tissue Reactions and Their Effects on Organ Systems Chap
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ter 9. Stochastic Effects and Late Tissue Reactions of Radiation in OrganSys
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tems
Chapter 10. Dose Limits for Exposure to Ionizing Radiatio
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nChapter 11. Equipment Design for Radiation Protection
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Chapter 12. Management of Patient Radiation Dose During Diagnostic X-
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RayProcedures
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Chapter 13. Radiation Safety in Computed Tomography and Mammograph
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yChapter 14. Management of Imaging Personnel Radiation Dose During Di
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agnostic X-Ray Proceduresxx xx
Chapter 15. Radioisotopes and Radiation Protection
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Chapter 01: Introduction to Radiation Protection
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Sherer: Radiation Protection in Medical Radiography, 10th Edition
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MULTIPLE CHOICE xx
1. Consequences of ionization in human cells include xx xx x x xx x x x x
1. creation of unstable atoms. xx xx xx
2. production of free electrons. x x xx xx
3. creation of highly reactive free molecules (called free radicals) capable of producingsu
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bstances poisonous to the cell. x x x x xx xx
4. creation of new biologic molecules detrimental to the living cell.
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5. injury to the cell that may manifest itself as abnormal function or loss of function.
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6. production of low-energy x-ray photons. xx xx xx xx
a. 1, 2, 3, and 4 onlyxx xx xx xx xx
b. 2, 3, 4, and 5 onlyxx xx xx xx xx
c. 3, 4, 5, and 6 onlyxx xx xx xx xx
d. All the options xx xx
ANS: D xx
,2. Which of the following is a form of radiation that is capable of creating electrically charg
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edparticles by removing orbital electrons from the atom of normal matter through which it p
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asses?
a. Ionizing radiation xx
b. Nonionizing radiation xx
c. Subatomic radiation xx
d. Ultrasonic radiation xx
ANS: A xx
3. Regarding exposure to ionizing radiation, patients who are educated to understand the med
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icalbenefit of an imaging procedure are more likely to
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a. assume a small chance of biologic damage but not suppress any radiation phobiat
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hey may have. xx xx
b. cancel their scheduled procedure because they are not willing to assume a s
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mallchance of biologic damage.
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c. suppress any radiation phobia but not risk a small chance of possible biol
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ogicdamage. x
d. suppress any radiation phobia and be willing to assume a small chance of possi
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blebiologic damage.
x xx
ANS: D xx
4. The millisievert (mSv) is equal to
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a. 1/10 of a sievert. xx xx xx
b. 1/100 of a sievert. xx xx xx
c. 1/1000 of a sievert. xx xx xx
d. 1/10,000 of a sievert. xx xx xx
ANS: C xx
5. The advantages of the BERT method are
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1. BERT does not imply radiation risk; it is simply a means for comparison.
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2. BERT emphasizes that radiation is an innate part of the environment.
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3. BERT provides an answer that is easy for the patient to comprehend.
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a. 1 and 2 only xx xx xx
b. 1 and 3 only xx xx xx
c. 2 and 3 only xx xx xx
d. All the options xx xx
ANS: D xx
6. If a patient asks a radiographer a question about how much radiation he or she will receivef
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rom a specific x-ray procedure, the radiographer can
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a. respond by using an estimation based on the comparison of radiation received fr
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omthe x-ray to natural background radiation received.
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b. avoid the patient’s question by changing the subject.
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c. tell the patient that it is unethical to discuss such concerns.
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d. refuse to answer the question and recommend that he or she speak with
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thereferring physician.
xx x x x
ANS: A xx
7. Why should the selection of technical exposure factors for all medical imaging proce
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duresalways follow ALARA?
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a. So that referring physicians ordering imaging procedures do not have to accep
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tresponsibility for patient radiation safety.
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b. So that radiographers and radiologists do not have to accept responsibility for
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, patient radiation safety. xx xx
c. Because radiation- xx
induced cancer does not appear to have a fixed threshold, that is,a dose level
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below which a person would have no chance of developing this disease.
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d. Because radiation- xx
induced cancer does have a dose level at which individualswould have a
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chance of developing this disease.
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ANS: C xx
8. The cardinal principles of radiation protection include which of the following?
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a. Time
b. Distance
c. Shielding
d. All the options xx xx
ANS: D xx
9. In a hospital setting, which of the following professionals is expressly charged by the hos
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pitaladministration with being directly responsible for the execution, enforcement, and mai
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ntenance of the ALARA program? xx xx xx xx
a. Assistant administrator of the facility xx x x xx xx
b. Chief of staff xx xx
c. Radiation Safety Officer xx xx
d. Student radiologic technologist xx xx
ANS: C xx
10. Why is a question concerning the amount of radiation a patient will receive during a spec
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ificx-ray procedure difficult to answer?
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1. Because the received dose is specified in a number of different units of measure.
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2. Because the scientific units for radiation dose are normally not comprehensible by a pati
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ent.
3. Because the patient should not receive any information about radiation dose.
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a. 1 and 2 only xx xx xx
b. 1 and 3 only xx xx xx
c. 2 and 3 only xx xx xx
d. All the options xx xx
ANS: A xx
11. X-rays are a form of which of the following kinds of radiation?
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a. Environmental
b. Ionizing
c. Internal
d. Nonionizing
ANS: B xx
12. What unit is used to measure radiation exposure in the metric International System of Unit
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s?
a. Coulomb per kilogram xx xx
b. Milligray
c. Millisievert
d. Sievert
ANS: A xx
13. What organization was founded in 2007 that continues their pursuit to raise awareness of t
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heneed for dose reduction protocols by promoting pediatric-
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specified scan protocols to be usedfor both radiology and non-radiology users of CT?
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