Supervisor and Operator Rad Exam
v v v v
Whichvofvthevfollowingvoccurvminutesvtovhoursvaftervexposurevtovionizingvradiation?
1.)vfunctionalvdamagev&vmorphologicalvchanges
2.)vAppearancevofvatypicalvcells
3.)vCataractvformationv-vcorrectvanswer✔ ✔ 1v&v2
Ifvthevoperatorvstandsvbehindvavportablevshield,vwhichvmayvallowvscatteredvradiationvtovp
assvaroundvit'svedges;vtotalvradiationvdosevreductionvwouldvbevapproximately:v
a.)v50%
b.)v75%
c.)v92%
d.)v99%v-vcorrectvanswer✔ ✔ 99%
WhichvofvthevfollowingvarevSHORTvTERMvstepwiseveffectsvofvradiationvexposure?
1.)vlife-spanvshortening
2.)vprimaryvradiochemicalvreactions
3.)vfunctionalvdamagevofvcells
A.)v1vandv2
b.)v1vandv3
c.)v2vandv3
d.)v1,v2,vandv3v-vcorrectvanswer✔ ✔ C.v2vandv3
LimitedvpermitvX-rayvtechniciansvarevexcludedvfrom:v
A.)vtakingvplainvradiographsvofvthevextremities
B.)voperatingvportablevorvmobilevX-rayvequipment
C.)vtakingvplainvradiographsvofvthevchest
,d.)vallvofvthevabovev-vcorrectvanswer✔ ✔ B.)voperatingvportablevorvmobilevX-
rayvequipment
Anvexamplevofvavradiographicvstudyvusingvnaturalvshieldingvtovdecreasevradiationvtovthev
ovariesvis:
A.)vAPvT/Sv
b.)vAPvpelvis
c.)vlateralvfemur
d.)vPAvlumbarvspinev-vcorrectvanswer✔ ✔ d.)vPAvLumbarvSpine
Whichvofvthevfollowingvisvpartvofvthevx-rayvtubevanode?
1.)vpositivevelectrode
2.)vnegativevelectrode
3.)vtargetv-vcorrectvanswer✔ ✔ 1vandv3.
Whichvelectronvinteractionvwithvthevanodevcausesvx-rayvbeamvtovbevpolygenergetic?
A.)vcharacteristic
b.)vCompton
c.)vpairvproduction
d.)vBremsstrahlungv-vcorrectvanswer✔ ✔ d.)vBremsstrahlung
Whatvhappensvtovthevnominalvfocalvspotvsizevasvthevx-
rayvtubevtargetv(anode)vdecreases?
A.)vdecreases
B.)vstaysvthevsame
c.)vincreases
d.)vinvertsv-vcorrectvanswer✔ ✔ a.)vdecreases
,Whichvofvthevfollowingvwillvreducevpatientvradiationvdose?
a.)vincreasedvthicknessvofvthevalum.vtabletop
b.)vusevmorevradio-absorbentvcassettevfronts
c.)vusevKEVLARvcassettevfronts
d.)vincreasevgridvratiov-vcorrectvanswer✔ ✔ ??vLookvupvseevpage?
Whatvaccountsvforvmostvofvthevrepeatedvradiographsv(retakes/repeats)vtoday?
a.)vincorrectvfilmvstorage
b.)vincorrectvselectionvofvPRIMARYvFACTORS
c.)vlackvofvcollimation
d.)vincorrectvfilmvprocessingv-vcorrectvanswer✔ ✔
b.)vincorrectvselectionvofvPRIMARYvFACTORS
0.5vmmvleadvequivalentvgonadvshieldsvplacedvovervthevovaries/testesvreducevradiationvd
osevtovthevgonadsvapproximatelyv______%
a.)v55%
b.)v80%
c.)v92%
d.)v100%v-vcorrectvanswer✔ ✔ c.)v92%v(verify)
Undervwhichvofvthevfollowingvconditionsvmuchvgonadsvbevshielded?v
1.)vthevpatientvisvofvreproductivevage
2.)vthevshieldvwillvnotvinterferevwithvthevdiagnosis
3.)vthevgonadsvlievwithinv5vcmvofvthevprimaryvbeamv-vcorrectvanswer✔ ✔
AllvofvthevAbove
verifyv5vcm..
, Tovreducevthevradiationvdosevtovpatients,vitvisvnecessaryvtovformulatevyourvradiographicvt
echniquevchartvsovthatvthevkVPvisv__________vandvthevmAsvisv____________.
a.)vhigh,vhigh
b.)vlow,vlow
c.)vhigh,vlow
d.)vlow,vhighv-vcorrectvanswer✔ ✔ C.)vhighvkVp,vlowvmAs
Approximately,vwhatv%vofvcasesvwillvrequirevminorvadjustmentsvtovavradiographicvtechni
quevchart?
A.)v5
B.)v10-25
c.)v25-50
D.)v75v-vcorrectvanswer✔ ✔ B.v10-25
Howvshouldvexposurevfactorsvbevadjustedvforvavpatientvwithvemphysema?
a.)vkeepvkVPvthevsame,vdoublevmAs
b.)vkeepvkVPvthevsame,vhalvevthevmAs
c.)vincreasevkVp,vkeepvsamevmAs
d.)vnovchangevisvnecessaryv-vcorrectvanswer✔ ✔
b.)vkeepvkVPvthevsame,vhalvevthevmAs
Anvemphysematousvpatientvwillvneed___________vexposurevthan/anvasvpatientvwithvpn
eumonia.v
a.)v50%vmore
b.)v100%vmore
c.)vthevsame
d.)vlessv-vcorrectvanswer✔ ✔ d.)vless
v v v v
Whichvofvthevfollowingvoccurvminutesvtovhoursvaftervexposurevtovionizingvradiation?
1.)vfunctionalvdamagev&vmorphologicalvchanges
2.)vAppearancevofvatypicalvcells
3.)vCataractvformationv-vcorrectvanswer✔ ✔ 1v&v2
Ifvthevoperatorvstandsvbehindvavportablevshield,vwhichvmayvallowvscatteredvradiationvtovp
assvaroundvit'svedges;vtotalvradiationvdosevreductionvwouldvbevapproximately:v
a.)v50%
b.)v75%
c.)v92%
d.)v99%v-vcorrectvanswer✔ ✔ 99%
WhichvofvthevfollowingvarevSHORTvTERMvstepwiseveffectsvofvradiationvexposure?
1.)vlife-spanvshortening
2.)vprimaryvradiochemicalvreactions
3.)vfunctionalvdamagevofvcells
A.)v1vandv2
b.)v1vandv3
c.)v2vandv3
d.)v1,v2,vandv3v-vcorrectvanswer✔ ✔ C.v2vandv3
LimitedvpermitvX-rayvtechniciansvarevexcludedvfrom:v
A.)vtakingvplainvradiographsvofvthevextremities
B.)voperatingvportablevorvmobilevX-rayvequipment
C.)vtakingvplainvradiographsvofvthevchest
,d.)vallvofvthevabovev-vcorrectvanswer✔ ✔ B.)voperatingvportablevorvmobilevX-
rayvequipment
Anvexamplevofvavradiographicvstudyvusingvnaturalvshieldingvtovdecreasevradiationvtovthev
ovariesvis:
A.)vAPvT/Sv
b.)vAPvpelvis
c.)vlateralvfemur
d.)vPAvlumbarvspinev-vcorrectvanswer✔ ✔ d.)vPAvLumbarvSpine
Whichvofvthevfollowingvisvpartvofvthevx-rayvtubevanode?
1.)vpositivevelectrode
2.)vnegativevelectrode
3.)vtargetv-vcorrectvanswer✔ ✔ 1vandv3.
Whichvelectronvinteractionvwithvthevanodevcausesvx-rayvbeamvtovbevpolygenergetic?
A.)vcharacteristic
b.)vCompton
c.)vpairvproduction
d.)vBremsstrahlungv-vcorrectvanswer✔ ✔ d.)vBremsstrahlung
Whatvhappensvtovthevnominalvfocalvspotvsizevasvthevx-
rayvtubevtargetv(anode)vdecreases?
A.)vdecreases
B.)vstaysvthevsame
c.)vincreases
d.)vinvertsv-vcorrectvanswer✔ ✔ a.)vdecreases
,Whichvofvthevfollowingvwillvreducevpatientvradiationvdose?
a.)vincreasedvthicknessvofvthevalum.vtabletop
b.)vusevmorevradio-absorbentvcassettevfronts
c.)vusevKEVLARvcassettevfronts
d.)vincreasevgridvratiov-vcorrectvanswer✔ ✔ ??vLookvupvseevpage?
Whatvaccountsvforvmostvofvthevrepeatedvradiographsv(retakes/repeats)vtoday?
a.)vincorrectvfilmvstorage
b.)vincorrectvselectionvofvPRIMARYvFACTORS
c.)vlackvofvcollimation
d.)vincorrectvfilmvprocessingv-vcorrectvanswer✔ ✔
b.)vincorrectvselectionvofvPRIMARYvFACTORS
0.5vmmvleadvequivalentvgonadvshieldsvplacedvovervthevovaries/testesvreducevradiationvd
osevtovthevgonadsvapproximatelyv______%
a.)v55%
b.)v80%
c.)v92%
d.)v100%v-vcorrectvanswer✔ ✔ c.)v92%v(verify)
Undervwhichvofvthevfollowingvconditionsvmuchvgonadsvbevshielded?v
1.)vthevpatientvisvofvreproductivevage
2.)vthevshieldvwillvnotvinterferevwithvthevdiagnosis
3.)vthevgonadsvlievwithinv5vcmvofvthevprimaryvbeamv-vcorrectvanswer✔ ✔
AllvofvthevAbove
verifyv5vcm..
, Tovreducevthevradiationvdosevtovpatients,vitvisvnecessaryvtovformulatevyourvradiographicvt
echniquevchartvsovthatvthevkVPvisv__________vandvthevmAsvisv____________.
a.)vhigh,vhigh
b.)vlow,vlow
c.)vhigh,vlow
d.)vlow,vhighv-vcorrectvanswer✔ ✔ C.)vhighvkVp,vlowvmAs
Approximately,vwhatv%vofvcasesvwillvrequirevminorvadjustmentsvtovavradiographicvtechni
quevchart?
A.)v5
B.)v10-25
c.)v25-50
D.)v75v-vcorrectvanswer✔ ✔ B.v10-25
Howvshouldvexposurevfactorsvbevadjustedvforvavpatientvwithvemphysema?
a.)vkeepvkVPvthevsame,vdoublevmAs
b.)vkeepvkVPvthevsame,vhalvevthevmAs
c.)vincreasevkVp,vkeepvsamevmAs
d.)vnovchangevisvnecessaryv-vcorrectvanswer✔ ✔
b.)vkeepvkVPvthevsame,vhalvevthevmAs
Anvemphysematousvpatientvwillvneed___________vexposurevthan/anvasvpatientvwithvpn
eumonia.v
a.)v50%vmore
b.)v100%vmore
c.)vthevsame
d.)vlessv-vcorrectvanswer✔ ✔ d.)vless
