,
,Chapter 01: Introduction to Radiation Protection
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Sherer: Radiation Protection in Medical Radiography, 9th Edition
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MULTIPLE CHOICE cn
1. Consequencesof ionization in human cells include cn 9 cn 9cn 9c n cn
1. creation ofunstable atoms. cn cn
2. production of free electrons. 9c n 9 cn
3. creationofhighlyreactivefreemolecules(calledfreeradicals)capableofproducingsubsta nc
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es poisonous to the cell.
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4. creation ofnewbiologic molecules detrimental totheliving cell.
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5. injurytothe cell that may manifest itself asabnormal function orloss offunction.
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6. production of low-energy x-rayphotons. cn 9 cn
a. 1,2,3,and 4 only
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b. 2,3,4, and 5 only
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c. 3,4,5, and 6 only
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d. Allthe options cn cn
ANS: D cn
, 2. Which ofthe followingis a form ofradiation that is capable of creatingelectricallycharged partic l
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es byremoving orbitalelectrons fromthe atom ofnormalmatterthrough whichitpasses?
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a. Ionizing radiation cn
b. Nonionizing radiation cn
c. Subatomic radiation cn
d. Ultrasonic radiation cn
ANS: A cn
3. Regarding exposure toionizing radiation, patients who areeducated to understand the medicalbe
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nefit of an imaging procedure are more likely to
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a. assume asmallchance ofbiologicdamage butnotsuppress anyradiationphobiathey m
9 cn cn 9 cn cn 9 cn cn 9 cn cn
ay have. cn
b. cancel their scheduled procedure because they are not willing to assume asmall ch
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a nce of biologic damage.
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c. suppress anyradiationphobia but not risk asmall chance ofpossible biologicda 9cn cn 9c n cn cn cn cn cn cn cn cn
mage.
d. suppress any radiation phobia and be willing to assume a smallchance ofpossiblebiol
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ogic damage. cn
ANS: D cn
4. The millisievert (mSv) isequal to
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a. 1/10of asievert. cn cn
b. 1/100of asievert. cn cn
c. 1/1000of asievert. cn cn
d. 1/10,000of asievert. cn cn
ANS: C cn
5. The advantagesof the BERT method are
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1. BERT doesnot implyradiation risk; it is simply a means for comparison.
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2. BERT emphasizes that radiation is aninnate part ofthe environment.
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3. BERT provides ananswer that is easyfor the patient tocomprehend.
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a. 1and 2only cn cn cn
b. 1and 3only cn cn cn
c. 2 and 3only 9 cn cn
d. Allthe options cn cn
ANS: D cn
6. Ifapatientasksaradiographeraquestion abouthowmuch radiationheorshe willreceivefrom a spe
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cific x-ray procedure, the radiographer can
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a. respond byusing an estimation basedon the comparison ofradiation received fromth
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e x-ray to natural background radiation received.
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b. avoid thepatient’s question bychanging thesubject. cn cn 9c n cn cn cn
c. tellthe patient that itis unethical todiscuss such concerns.
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d. refuse toanswer the question and recommend that he orshe speakwith the ref
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erring physician. c n
ANS: A cn
7. Whyshould the selection oftechnical exposure factors for all medical imaging proceduresal
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ways follow ALARA?
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a. So that referring physicians ordering imaging procedures do not have to acceptresp o
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nsibility for patient radiation safety. c n cn c n c n
b. Sothat radiographers and radiologists do not have to accept responsibility for
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,Chapter 01: Introduction to Radiation Protection
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Sherer: Radiation Protection in Medical Radiography, 9th Edition
cn cn cn cn cn c n cn
MULTIPLE CHOICE cn
1. Consequencesof ionization in human cells include cn 9 cn 9cn 9c n cn
1. creation ofunstable atoms. cn cn
2. production of free electrons. 9c n 9 cn
3. creationofhighlyreactivefreemolecules(calledfreeradicals)capableofproducingsubsta nc
cn cn cn cn cn cn cn cn cn
es poisonous to the cell.
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4. creation ofnewbiologic molecules detrimental totheliving cell.
9 cn 9c n cn cn cn cn cn
5. injurytothe cell that may manifest itself asabnormal function orloss offunction.
cn cn 9cn cn 9cn cn 9c n 9c n cn cn cn cn 9cn cn
6. production of low-energy x-rayphotons. cn 9 cn
a. 1,2,3,and 4 only
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b. 2,3,4, and 5 only
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c. 3,4,5, and 6 only
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d. Allthe options cn cn
ANS: D cn
, 2. Which ofthe followingis a form ofradiation that is capable of creatingelectricallycharged partic l
9c n cn 9c n cn 9cn 9 9cn cn cn cn cn cn 9 cn cn 9 cn
es byremoving orbitalelectrons fromthe atom ofnormalmatterthrough whichitpasses?
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a. Ionizing radiation cn
b. Nonionizing radiation cn
c. Subatomic radiation cn
d. Ultrasonic radiation cn
ANS: A cn
3. Regarding exposure toionizing radiation, patients who areeducated to understand the medicalbe
cn cn cn 9c n cn cn 9cn cn 9 9c n cn c
nefit of an imaging procedure are more likely to
n c n cn cn c n cn cn 9cn cn
a. assume asmallchance ofbiologicdamage butnotsuppress anyradiationphobiathey m
9 cn cn 9 cn cn 9 cn cn 9 cn cn
ay have. cn
b. cancel their scheduled procedure because they are not willing to assume asmall ch
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a nce of biologic damage.
cn cn cn cn
c. suppress anyradiationphobia but not risk asmall chance ofpossible biologicda 9cn cn 9c n cn cn cn cn cn cn cn cn
mage.
d. suppress any radiation phobia and be willing to assume a smallchance ofpossiblebiol
cn cn cn cn cn 9 9cn 9 cn 9 cn 9c n cn
ogic damage. cn
ANS: D cn
4. The millisievert (mSv) isequal to
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a. 1/10of asievert. cn cn
b. 1/100of asievert. cn cn
c. 1/1000of asievert. cn cn
d. 1/10,000of asievert. cn cn
ANS: C cn
5. The advantagesof the BERT method are
9cn cn 9 cn cn cn
1. BERT doesnot implyradiation risk; it is simply a means for comparison.
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2. BERT emphasizes that radiation is aninnate part ofthe environment.
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3. BERT provides ananswer that is easyfor the patient tocomprehend.
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a. 1and 2only cn cn cn
b. 1and 3only cn cn cn
c. 2 and 3only 9 cn cn
d. Allthe options cn cn
ANS: D cn
6. Ifapatientasksaradiographeraquestion abouthowmuch radiationheorshe willreceivefrom a spe
cn cn cn cn cn cn cn 9 cn cn 9 cn cn cn 9 cn cn cn
cific x-ray procedure, the radiographer can
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a. respond byusing an estimation basedon the comparison ofradiation received fromth
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e x-ray to natural background radiation received.
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b. avoid thepatient’s question bychanging thesubject. cn cn 9c n cn cn cn
c. tellthe patient that itis unethical todiscuss such concerns.
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d. refuse toanswer the question and recommend that he orshe speakwith the ref
9cn cn cn cn cn 9cn 9cn cn cn cn 9cn cn cn 9 cn
erring physician. c n
ANS: A cn
7. Whyshould the selection oftechnical exposure factors for all medical imaging proceduresal
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ways follow ALARA?
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a. So that referring physicians ordering imaging procedures do not have to acceptresp o
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nsibility for patient radiation safety. c n cn c n c n
b. Sothat radiographers and radiologists do not have to accept responsibility for
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