Chapter1.IntroductiontoRadiation Protection
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Chapter2.Radiation:Types,Sources,andDosesReceived
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Chapter 3. Interaction of X-Radiation with Matter Chapter4.
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Radiation Quantitiesand Units Chapter
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5. Radiation Monitoring s
Chapter6. Overviewof CellBiology
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Chapter7. Molecularand CellularRadiation Biology
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Chapter 8. EarlyTissue Reactions and Their Effects on Organ Systems
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Chapter9.Stochastic Effectsand Late TissueReactionsof Radiationin Organ
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Systems
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Chapter10. DoseLimitsforExposureto IonizingRadiation
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Chapter 11. Equipment Design for Radiation Protection
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Chapter12.ManagementofPatientRadiationDoseDuringDiagnosticX-Ray Procedures
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Chapter13. RadiationSafetyinComputedTomographyandMammography
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Chapter 14. Managementof Imaging PersonnelRadiation Dose During
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Diagnostic X-RayProcedures
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Chapter15.Radioisotopesand Radiation Protection
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Chapter 01: Introduction to Radiation Protection s s
Sherer: Radiation Protection in Medical Radiography, s s s 9th Edition
MULTIPLE CHOICE
1. Consequences ofionization inhuman cells include s s s
1. creation of unstable atoms. s jj s
2. production offree electrons. s s
3. creation ofhighly reactive free molecules (calledfreeradicals)capable
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ofproducing substances poisonous to the cell.
s s s s s
4. creationofnewbiologic molecules detrimental totheliving cell.
s s s s s
5. injury tothe cellthat may manifest
s itself asabnormal function orlossoffunction.
s s s s s s s s s s
6. production oflow-energy x-ray photons. s s s s
a. 1,2, 3, and 4 only s s s s
b. 2,3, 4, and 5 only s s s s
c. 3,4, 5, and 6 only s s s s
d. Allthe options s s
ANS: D
,2. Whichofthe following isaformofradiation that is capableofcreating electrically
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charged particles byremoving orbital electrons from the atomofnormal matter
s s s s s s s s s s
through which it passes?
s s s s
a. Ionizing radiation s
b. Nonionizing radiation s
c. Subatomic radiation s
d. Ultrasonic radiation s
ANS: A
3. Regarding exposure toionizing radiation, patients who areeducatedtounderstand the
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medical benefit of animaging procedure are more likely to
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a. assume asmall chance ofbiologic damage butnot suppressanyradiation s s s s s s s
phobia they may have.
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b. canceltheir scheduled procedure because theyarenotwilling toassume a
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small chance of biologic damage.
s s s s
c. suppressanyradiation phobia butnotriskasmall chanceofpossible s s s s s s s s
biologic damage. s s
d. suppressanyradiation phobia andbewilling toassume asmall chance s s s s s s s s
ofpossible biologic damage.
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ANS: D
4. The millisievert (mSv) isequal to
s s s s s
a. 1/10of a sievert. s s s
b. 1/100of a sievert. s s s
c. 1/1000of a sievert. s s s
d. 1/10,000of a sievert. s s s
ANS: C
5. Theadvantages ofthe BERT method are
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1. BERT doesnot imply radiation risk;it issimply ameans forcomparison.
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2. BERTemphasizes that radiation isaninnate parto ftheenvironment.
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3. BERTprovides ananswerthat iseasyfor thepatient tocomprehend.
s s s s s s s
a. 1and 2only s s
b. 1and 3only s s
c. 2and 3only s s
d. Allthe options s s
ANS: D s
6. Ifapatient asksaradiographer aquestion about howmuch radiation heorshe will
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receive from aspecific x-ray procedure, the radiographer can
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a. respond byusing an e stimation basedonthe comparison ofradiation received s s jj s s s s
from the x-ray to natural background radiation received.
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b. avoid thepatient’s question bychanging thesubject. s s s s s s
c. tellthe patient that it is unethical to discuss such concerns.
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d. refuse toanswer thequestion andrecommend that heorshes peak w iththe
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referring physician.
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ANS: A s
7. Whyshould the selection oftechnical exposure factors for allmedical imaging s s s s s s s s
procedures always follow ALARA?
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a. Sothatreferring physicians ordering imaging procedures donothave to s s s s s s s
accept responsibility for patient radiation safety.
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b. Sothat radiographers andradiologists donot have toacceptresponsibility for
j s s s s s s
, patient radiation safety. s s
c. Because radiation- induced cancer doesnot appearto have afixed threshold, that is, s s s s s s s s s s
a doselevel below which aperson would have no chance of developing this disease.
s jj s s s s s s s s s s s s
d. Because radiation- induced cancerdoeshave adoselevel atwhich individuals s s s s s s
would have achance ofdeveloping this disease.
s s s s s s
ANS: C s
8. The cardinal principles ofradiation protection include
s s s s s s which ofthefollowing? s s
a. Time
b. Distance
c. Shielding
d. Allthe options s s
ANS: D s
9. In a hospital setting, which ofthe following professionals is expressly charged bythe
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hospitaladministration with being directly responsible for the execution, enforcement,
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and maintenance ofthe ALARA program?
s s s s s
a. Assistant administrator ofthe facility s s
b. Chiefofstaff s s
c. Radiation Safety Officer s s
d. Student radiologic technologist s s
ANS: C s
10. Whyisaquestion concerning theamount ofradiation apatient will receive during s s s s s s s
aspecific x-ray procedure difficult to answer?
s s s s s
1. Becausethereceived doseis specified in anumber ofdifferent s units ofmeasure. s s s s s s s s s s
2. Because the scientific units for radiation dosearenormally not comprehensible
s by s s s s s s s
apatient. s
3. Becausethe patient should notreceive anyinformation aboutradiation dose.
s s s s s s s s s
a. 1and 2only s s
b. 1and 3only s s
c. 2and 3only s s
d. Allthe options s s
ANS: A s
11. X-raysareaformofwhich ofthe following kinds ofradiation? s s s s s s
a. Environmental
b. Ionizing
c. Internal
d. Nonionizing
ANS: B s
12. Whatunit is used to measure radiation exposure in themetric International System ofUnits?
s s s s s s s s s s s s s s
a. Coulomb perkilogram s
b. Milligray
c. Millisievert
d. Sievert
ANS: A s
13. What organizationwas founded in 2007 that continues their pursuit to raise awareness of the need
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for dose reductionprotocols bypromotingpediatric-specified scanprotocols to be used for
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bothradiology and non-radiology users ofCT?
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a. U.S.Foodand Drug Administration s s s