Chapter 01:k Introduction tok Radiation Protection
Sherer: Radiationk Protectionk ink Medical Radiography, 9th Edition
MULTIPLE
kCHOICE
1. Consequencesk ofk ionization ink human cellsk include
1. creationk ofk unstablek atoms.
2. productionk ofk freek electrons.
3. creationk ofk highlyk reactivek freek moleculesk (calledk freek radicals)k capablek of
kproducingsubstances poisonous tok thek cell.
4. creationk ofk newk biologick moleculesk detrimentalk tok thek livingk cell.
5. injuryk tok thek cellk thatk mayk manifest itself ask abnormal function ork lossk ofk function.
6. productionk ofk low-energyk x-rayk photons.
a.
1,k 2,k 3,k andk 4k only
b.
2,k 3,k 4,k andk 5k only
c.
3,k 4,k 5,k andk 6k only
,d.
Allk thek options
ANS:k D
, 2. Whichkofkthekfollowingkiskakformkofkradiationkthatkiskcapablekofkcreatingkelectricallykcharge
dparticleskbykremovingkorbitalkelectronskfromkthekatomkofknormalkmatterkthroughkwhichk it
k passes?
a.
Ionizingk radiation
b.
Nonionizingk radiation
c.
Subatomick radiation
d.
Ultrasonick radiation
ANS:k A
3. Regardingk exposurek tok ionizing
radiation,kpatientskwhokarekeducatedktokunderstandkthekmedicalbenefit
ofk ank imaging procedurek arek morek likelyk to
a.
assumek ak smallk chancek ofk biologick damagek butk notk suppressk anyk radiation
kphobiatheyk mayk have.
b.
cancelktheirk scheduledk procedurek becausek theyk arek notk willingk tok assumek
ak smallchancek ofk biologick damage.
c.
suppressk anyk radiationk phobiak butk notk riskk ak small
chancekofkpossiblekbiologicdamage.
d.
suppressk anyk radiationk phobiak andk bek willingk tok assume ak smallk chance
ofkpossiblebiologick damage.
ANS:k D
4. Thek millisievertk (mSv)k isk equalk to
a.
1/10k ofk ak sievert.
b.
1/100k ofk ak sievert.
c.
1/1000k ofk ak sievert.
d.
1/10,000k ofk ak sievert.
ANS:k C
5. Thek advantagesk ofk thek BERTk methodk are
1. BERTk doesk notk implyk radiation risk;k itk isk simply ak meansk fork comparison.
2. BERTk emphasizes thatk radiationk isk ank innate partk ofk thek environment.
3. BERTk provides ank answerk thatk isk easyk fork thek patient tokcomprehend.
a.
1k andk 2k only
b.
1k andk 3k only
c.
2k andk 3k only
d.
Allk thek options
ANS:k D
6. Ifk ak patientk asksk ak radiographerk ak questionk aboutk howk muchk radiationk hek ork shek will
kreceivefromk ak specifick x-rayk procedure,k thek radiographer can
a.
respondk bykusingk ank estimationk basedk onk thek comparison
ofk radiationkreceived fromthek x-rayk tok natural
background radiation received.
b.
avoidk thek patient’sk questionk byk changingk thek subject.
c.
tellk thek patientk thatk itk isk unethicalk tok discussk suchk concerns.
d.
refusektokanswerkthekquestionk andk recommendk thatk hek orkshek speakkwit
hk thereferring physician.
ANS:k A
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