RADIATION PROTECTION IN MEDICALRADIOGRAPHY 9TH EDITION
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ByMaryAlice Statkiewicz Sherer
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, TABLEOF CONTENT n
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
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Chapter4. Radiation Quantitiesand Units Chapter
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5. Radiation Monitoring n
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
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n Chapter9. Stochastic Effectsand Late Tissue Reactionsof Radiation in Organ
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n Systems
Chapter10. Dose Limitsfor Exposureto Ionizing Radiation
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n Chapter 11. Equipment Design for Radiation Protection
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Chapter12. ManagementofPatientR adiation Dose During Diagnostic X-Ray
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n Procedures
Chapter13. Radiation Safetyin ComputedTomographyand Mammography
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n Chapter 14. Managementof Imaging PersonnelRadiation Dose During
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n Diagnostic X-Ray Proceduresn n
Chapter15. Radioisotopesand Radiation Protection
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Chapter 01: Introduction to Radiation Protection n n
Sherer: Radiation Protection in Medical Radiography, n n n 9th Edition
MULTIPLE CHOICE
1. Consequences of ionization inhuman cells include n n n n
1. creation of unstable atoms. n jj n
2. production offree electrons. n n
3. creation ofhighly reactive free molecules (calledfreeradicals) capable
jjj n n n n
of producing substances poisonous to the cell.
n jj n n n
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. n n n n
a. 1,2, 3, and 4 only n n n n
b. 2,3, 4, and 5 only n n n n
c. 3,4, 5, and 6 only n n n n
d. All the options n n
ANS: D
,2. Which ofthe following nis aform ofradiation that is capable ofcreating
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n electrically charged particles by removing orbital electrons from the
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natomofnormal matter through which it passes? n n n n
a. Ionizing radiation n
b. Nonionizing radiation n
c. Subatomic radiation n
d. Ultrasonic radiation n
ANS: A
3. Regarding exposure toionizing radiation, patients who areeducated tounderstand
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n the medical benefit
n of animaging procedure are more likely to
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a. assume asmall chance ofbiologic damage butnot suppress n n n n n n
anyradiation phobia they may have.
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b. cancel their scheduled procedure because they arenot willing to assume
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a small chance of biologic
n n damage. n n n
c. suppress anyradiation phobia but not risk asmall chance n n n jjj n n n
ofpossible biologic damage.
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d. suppress anyradiation phobia andbewilling to assume a smalln n n n n n n
chance ofpossible biologic damage.
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ANS: D
4. The millisievert (mSv) isequal to
n n n n n
a. 1/10 of a sievert. n n n
b. 1/100 of a sievert. n n n
c. 1/1000 of a sievert. n n n
d. 1/10,000 of a sievert. n n n
ANS: C
5. The advantages of the BERT method are
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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 n n
b. 1and 3 only n n
c. 2and 3 only n n
d. All the options n n
ANS: D n
6. Ifapatient asksa radiographer n n n aquestion about howmuch radiation he orshe n n n n n
will receive from aspecific
n n n n x-ray procedure, the n n
radiographer
n can
a. respond byusing an estimation based on the comparison ofradiation
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received from the x-ray to natural
n background radiation n n n n n n
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 speakw ith the
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referring physician.
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ANS: A n
7. Whyshould the selection of technical exposure factors for allmedical
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imaging procedures always follow
n ALARA?
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a. So that referring physicians ordering imaging procedures donothave
jjj n n n n n
to accept responsibility for patient radiation safety.
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b. Sothat radiographers and radiologists donot have toaccept responsibility for
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, patient radiation safety. n n
c. Because radiation- i nduced cancer doesnot appearto have afixed threshold, that
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is, a doselevel below which aperson would have no chance of developing this
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disease. n
d. Because radiation- i nduced cancerdoeshave adoselevel at w hich individuals
n jj n n n jj n
would have achance ofdeveloping this disease.
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ANS: C n
8. The cardinal principles
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a. Time
b. Distance
c. Shielding
d. All the options n n
ANS: D n
9. In a hospital setting,
jj which of the following professionals is expressly charged bythe
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hospital administration with being directly responsible for the execution,
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nenforcement, and maintenance of the ALARA program? n n n n n
a. Assistant administrator of the facility n j n
b. Chief of staff n n
c. Radiation Safety Officer n n
d. Student radiologic n n technologist
ANS: C n
10. Whyis a 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. n
3. Because the patient should not receive anyinformation about radiation dose.
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a. 1and 2 only n n
b. 1and 3 only n n
c. 2and 3 only n n
d. All the options n n
ANS: A n
11. X-raysareaform ofwhich n n n ofthe following kinds ofradiation?
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a. Environmental
b. Ionizing
c. Internal
d. Nonionizing
ANS: B n
12. What unit is used to measure radiation exposure in the metric International System
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ofUnits?
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a. Coulomb perkilogram n
b. Milligray
c. Millisievert
d. Sievert
ANS: A n
13. What organizationwas founded in 2007 that continues their pursuit to raise awareness of the
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nneed for dose reductionprotocols bypromotingpediatric-specified scanprotocols to be used
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nfor bothradiology and non-radiology users ofCT?
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a. U.S.Foodand Drug Administration n n n