RADIATION PROTECTION IN MEDICALRADIOGRAPHY 9TH EDITION
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ByMaryAlice Statkiewicz Sherer
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, TABLEOF CONTENT v
Chapter1. Introduction to Radiation Protection
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Chapter 2. Radiation: Types,Sources, and Doses Received
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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 v
Chapter 6. Overviewof Cell Biology
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Chapter7. Molecularand CellularRadiation Biology
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Chapter 8. Early Tissue Reactions and Their Effects on Organ Systems Chapter9.
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Stochastic Effectsand Late Tissue Reactionsof Radiation in Organ Systems
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Chapter10. Dose Limitsfor Exposure t o Ionizing Radiation
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Chapter 11. Equipment Design for Radiation Protection
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Chapter12. ManagementofPatientRadiation Dose During Diagnostic X-Ray
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Procedures
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Chapter13. Radiation Safetyin ComputedTomographyand Mammography
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Chapter 14. Managementof Imaging PersonnelRadiation Dose During Diagnostic
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X-Ray Procedures
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Chapter15. Radioisotopesand Radiation Protection
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Chapter 01: Introduction to Radiation Protection v v
Sherer: Radiation Protection in Medical Radiography, v v v 9th Edition
MULTIPLE CHOICE
1. Consequences of ionization inhuman cells include v v v v
1. creation ofunstable atoms. v j v
2. production offree electrons. v v
3. creation ofhighly reactive free molecules (calledfreeradicals) capable
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vofproducing substances poisonous to the cell.
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4. creation ofnew biologic molecules detrimental tothe living cell.
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5. injury to the cell that may manifest itself asabnormal function orloss offunction.
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6. production of low-energy x-ray photons. v v v v
a. 1,2, 3, and 4 only v v v v
b. 2,3, 4, and 5 only v v v v
c. 3,4, 5, and 6 only v v v v
d. All the options v v
ANS: D
,2. Which ofthe following is aform ofradiation that is capable ofcreating electrically
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charged particles byremoving orbital electrons from the atomofnormal matter
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through which it passes?
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a. Ionizing radiation v
b. Nonionizing radiation v
c. Subatomic radiation v
d. Ultrasonic radiation v
ANS: A
3. Regarding exposure toionizing radiation, patients who areeducated to understand
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vthe medical benefit
v of animaging procedure are more likely to
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a. assume asmall chance ofbiologic damage butnot suppress anyradiation
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phobia they may have.
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b. cancel their scheduled procedure because they arenot willing toassume a
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small chance of biologic damage.
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c. suppress anyradiation phobia butnot risk asmall chance ofpossible
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biologic damage.
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d. suppress anyradiation phobia andbewilling toassume asmall chance
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ofpossible biologic damage.
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ANS: D
4. The millisievert (mSv) isequal to
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a. 1/10 of a sievert. v v v
b. 1/100 of a sievert. v v v
c. 1/1000 of a sievert. v v v
d. 1/10,000 of a sievert. v v v
ANS: C
5. The advantages
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1. BERT doesnot imply radiation risk; it is simply ameans forcomparison.
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2. BERT emphasizes that radiation is aninnate partofthe environment.
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3. BERT provides ananswerthat is easyfor the patient tocomprehend.
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a. 1and 2 only v v
b. 1and 3 only v v
c. 2and 3 only v v
d. All the options v v
ANS: D v
6. Ifapatient asksa radiographer v v v aquestion about howmuch v v v radiation he orshe v v
will receive from aspecific
v v v v x-ray procedure, the v v
radiographer
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a. respond byusing anestimation based onthe comparison ofradiation
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received from the x-ray tonatural
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received.
b. avoid thepatient’s question bychanging the subject.
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c. tell the patient that it is unethical to discuss such concerns.
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d. refuse toanswer thequestion andrecommend that heorshe speakwith the
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referring physician.
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ANS: A v
7. Whyshould the selection oftechnical exposure factors for allmedical
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imaging procedures always follow
v ALARA?
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a. Sothat referring physicians ordering imaging procedures donothave
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to accept responsibility for patient radiation safety.
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b. Sothat radiographers and radiologists
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, patient radiation safety. v v
c. Because radiation- induced cancer doesnot appearto have afixed threshold, that
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is, adose level below which aperson would have no chance of developing this
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disease. v
d. Because radiation- induced cancerdoeshave adoselevel at w hich individuals
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would have achance ofdeveloping this disease.
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ANS: C v
8. The cardinal principles
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a. Time
b. Distance
c. Shielding
d. All the options v v
ANS: D v
9. Ina hospital setting,
j which ofthe following professionals is expressly charged bythe
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hospital administration with being directly responsible for the execution,
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venforcement, and maintenance ofthe ALARA program? v v v v v
a. Assistant administrator ofthe facility v j v
b. Chief of staff v v
c. Radiation Safety Officer v v
d. Student radiologic v v technologist
ANS: C v
10. Whyisa question concerning theamount ofradiation apatient will receive
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during aspecific x-ray procedure difficult
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1. Because the received doseis specified in a number ofdifferent units ofmeasure.
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2. Because the scientific units for radiation dosearenormally not comprehensible by
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apatient. v
3. Because the patient should notreceive anyinformation about radiation dose.
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a. 1and 2 only v v
b. 1and 3 only v v
c. 2and 3 only v v
d. All the options v v
ANS: A v
11. X-raysareaform ofwhich v v v ofthe following v v kinds ofradiation? v
a. Environmental
b. Ionizing
c. Internal
d. Nonionizing
ANS: B v
12. What unit is used to measure
v v v v v v radiation v exposure in the metric International System ofUnits?
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a. Coulomb perkilogram v
b. Milligray
c. Millisievert
d. Sievert
ANS: A v
13. What organizationwas founded in 2007 that continues their pursuit to raise awareness of the
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need for dose reductionprotocols bypromotingpediatric-specified scanprotocols to be used
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for bothradiology and non-radiology users ofCT?
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a. U.S.Foodand Drug Administration v v v