ARRT TEST PREP, LIMITED X-RAY CORE
QUESTIONS WITH CORRECT ANSWERS
Main sproperty sof sx-radiation sthat smakes sit spotentially shazardous sis sits sability sto? s-
sANS--Ionize
Describe sthe sdamage spotential sof sionization? s- sANS--Chain sreaction sin sthe shuman
sbody sthat smay seventually scause sbiologic sdamage. sX-rays sare sfrom sthe sElectric
sMagnetic sSpectrum sor sradiation senergy sand sis sconsidered sharmful sin shigh senergy
sranges.
What sis sthe smost slikely spotential shazard sworking swith sdiagnostic sradiology? s-
sANS--Carcinogenesis s- sStochastic/Non-Threshold sEffect
.1 sRem s= s? sSeivert s- sANS--1 sSievert
0.1 sGray s= s? sRad s- sANS--10 sRad
1 sGray s= s? sRad s- sANS--100 sRad
What sis sAplastic sAnemia? sWhen sdose sit soccur? s- sANS--All stypes sof sblood scells:
sRed s& sWhite
25 sRads
A sdecrease sin sblood scount sis sthe searliest sresponse sseen sto sdose sradiation. sIt scan
soccur sat sdosease sas slow sas? s- sANS--25 sRads sor s.25 sGray
What sis sCataractogenesis? s- sANS--Process sof sCataract sFormation
Cataractogenesis soccurs safter sacute sor schronic sexposures sof show smany sRads? s-
sANS--200 sRads, s2 sGray
Skin sEyrythemia s(Skin sRedning) soccurs sabove? s- sANS--Above s200 sRad, s2 sGray
Temporary sSterility soccurs sin sthe sadult smale sat sacute sdoses sof show smany sRads?
s- sANS--250 sRads, s2.5 sGray
Pregnant sradiographer sshould? s(3) s- sANS--Always spractice sTDS
Has slegal sright sfor sre-assignment sof sduty
Never sconfuse scollar sbadge swith swaist sbadge
Monthly sdosimetry sreports sis sbased son swhat? s- sANS--OCCUPATIONAL sexposures
sonly.
,Monthly sDosimeter sreports sdoes sNOT sinclude? s- sANS--Natural sor sBackground
sRadiation
What sis sthe srecommended smonthly sdose-equivalent slimit sfor sthe sfetus sin sthe sthird
strimester? s- sANS--0.5 smSv
.05 sRem
NRCP s116
Radiation sworkers scumulative sdose-equivalent slimit sis sdetermined sby? s- sANS--Age
sx s10 smSv s
Age sx s1 sRem
NCRP s110
What sis sthe sOccupational sradiation sdose sequivalent slimit sfor sstochastic seffects sto
sthe swhole sbody? s- sANS--50 smSv s(5 sRem)
When susing sa sC-Arm smobile sunit, sthe sintensification stower sshould sbe? s- sANS--As
sclose sas spossible sto sthe spatient sto sreduce spatient sdose sand sunnecessary
smagnification.
Radiation sexposure sin sair s= s? s- sANS--Roentgens s- sIonization sin sair sdose
smeasurement.
Electrical scurrent sbeing sgenerated sby sa scharge screated sin sair sthru sionization sby
sx/gamma sradiation sis scalled sa? s- sANS--Ion sChamber
The squantity sof sradiation sexposure smeasured sby san sionization schamber swould sbe?
s- sANS--Coulomb/Kilogram
The sC/Kg sor sR sis susually sthe sunit smeasured sin? s- sANS--Air sdose
List sthe s3 smeasurements sthat sare smore sappropriate sfor smeasuring sabsorbed sdoses
sfor sradiation sor soccupational sdose? s- sANS--Gray s(1) s- sRad s(100) s
Seivert s(1) s- sRem s(100)
Curie s- sBacquerel
What stype sof schanges sare sused sto smeasure soccupational sdose? s(3) s- sANS--
Scintillation
Biological
Chemical
Example sof spersonnel smonitor sthat smeasures sradiation sthru schemical schange
sreaction? s- sANS--Film sBadge s- sOperate soff sGurney-Mott stheory.
,Explain sthe sGurney-Mott sTheory...? s- sANS--Describes show san sx-ray sphoton
schanges ssilver shalide sinto satomic ssilver sin sthe sfilm semulsion--a sdefinite schemical
schange.
How slong scan sa sfilm sbadge sbe sworn? s- sANS--No smore sthan sa smonth
Why sshouldn't sfilm sbadges sbe sworn sgreater sthan sa smonth? s- sANS--Extreme
ssensitivity sto senvironmental sconditions.
TLD's soperate sthru? s- sANS--Luminescence s(NO schemical srx's soccur)
Pocket sdosimeters scan sonly swork sfor? s- sANS--1 sday sand smust sbe sreset severyday.
Upper sreading slimit sof s200-300 srads
Pocket sdosimeter suses? s- sANS--Electrical scurrent sas sa smeasurement sof scharge.
The stype sof spersonnel smonitor sthat scould sbe sworn sthe slongest sis sthe? s- sANS--
OSD
Optical sstimulated sdetector scan sbe sworn sup sto? s- sANS--3 smonths sand sbe
ssensitive sto s2 smR
Leakage sradiation sshould sNOT sexceed show smuch smR sat s1 smeter sfrom sthe
sscource? s- sANS--100 smR sper shr
0.1 sRad sper shr
NCRP s102
According sto sBushong, stabletop sintensity sshould sNOT sexceed swhat? s- sANS--2.1
smR sper smin sfor seach smA soperating sat s80 skVp.
Under snormal smodes sof soperation, sfluoroscopic sprocedures sshould sNOT sexceed? s-
sANS--10 sRenkens sper smin.
What sdoes sGSD sstand sfor? s- sANS--Genetic sSignificant sDose
What sis sGSD? s- sANS--Average sgonadal sdose sreceived sby san sexposed spopulation.
sIt sis sused sto sestimate sthe sgenetic simpact sof smedical sradiation sdose son sthe sentire
spopulation.
Beam slimiting sdevices swill? s(3) s- sANS--Improve simage squality
Reduce spatient sdose
Reduce sscatter sradiation
The spurpose sof sreducing sadded sfiltration sis sto sreduce sradiation sdose sto? s- sANS--
Patients sskin
, Recommended samount sof sfiltration sin sFluoro? s- sANS--3 smm sAl sEquivalent
Disadvantage sto shaving s3 smm sAl sEquivalent? s- sANS--Would srequire san sincrease
sin stechnical sfactors sdefeating sthe spurpose sof sfiltration.
What sis sthe susual samount sof sfiltration sin sFluoro? s- sANS--2.5 smm sAl sEquivalent
What seffect sdoes sexcessive sfiltration shave son sxray simage? s- sANS--Reduced
scontrast
# sof sgrid slines sper sinch sor scentimeter sdefines? s- sANS--Grid sFrequency
For sall sdedicated schest sunits swhose stube spotential sroutinely sexceeds s90 skVp, sthe
sminimum srecommended sgrid sratio sis? s- sANS--8:1
Techniques sbelow sor sat s90 skVp swould sutilize swhat sgrid sratio? s- sANS--8:1
Techniques sabove s90 skVp swould sutilize swhat sgrid sratio? s- sANS--12:1
What sis sthe sratio sof sa sgrid swhose slead sstrips sare s0.25 smm sthick, s1.6 smm shigh
sand sare sseperated sby sa s0.10 smm salluminum sspacer? s- sANS--16:1 sgrid
During slatent simage sformation, sthe sconcentration sof smetallic ssilver sin sthe sexposed
scrystals soccurs sin sthe sregion sof sthe ssensitivity sspecks. sThis sexplanation sof sthe
sformation sof sthe simage sis sreffered sto sas? s- sANS--Gurney-Mott stheory
What stype sof sinteractions scause sionization sof sirradiated smaterial? s- sANS--
Photoelectric s- sChanges sinner sshell selectrons
Compton s- sAffects souter sshell selectrons
Which sof sthe sfollowing sxray sinteractions swith smatter sis sprimarily sresponsible sfor
scontrast? s- sANS--Photoelectric seffect
Radiation sproduces sat svery sdiscrete senergies sof sapprox s69 skiloelectron scolts s(kev)
swhen selectrons sinteract swith sthe sK sshell sof sthe stungsten starget satom sis scalled? s-
sANS--Characteristic sRadiation
Pair-Production saffects swhat sportion sof sthe scell? s- sANS--Nucleus. sIt sdoes sNOT
scause sionization.
What stype sof sradiation swould sproduce sthe sgreatest samount sof sbiological sdamage
sin shuman stissue? s- sANS--High sLET's
What sis sthe sactive scomponent sof sthe sTLD? s- sANS--Lithium sFluoride
What sis sused sin sinput sphosphors? s- sANS--Cesium sIodide
QUESTIONS WITH CORRECT ANSWERS
Main sproperty sof sx-radiation sthat smakes sit spotentially shazardous sis sits sability sto? s-
sANS--Ionize
Describe sthe sdamage spotential sof sionization? s- sANS--Chain sreaction sin sthe shuman
sbody sthat smay seventually scause sbiologic sdamage. sX-rays sare sfrom sthe sElectric
sMagnetic sSpectrum sor sradiation senergy sand sis sconsidered sharmful sin shigh senergy
sranges.
What sis sthe smost slikely spotential shazard sworking swith sdiagnostic sradiology? s-
sANS--Carcinogenesis s- sStochastic/Non-Threshold sEffect
.1 sRem s= s? sSeivert s- sANS--1 sSievert
0.1 sGray s= s? sRad s- sANS--10 sRad
1 sGray s= s? sRad s- sANS--100 sRad
What sis sAplastic sAnemia? sWhen sdose sit soccur? s- sANS--All stypes sof sblood scells:
sRed s& sWhite
25 sRads
A sdecrease sin sblood scount sis sthe searliest sresponse sseen sto sdose sradiation. sIt scan
soccur sat sdosease sas slow sas? s- sANS--25 sRads sor s.25 sGray
What sis sCataractogenesis? s- sANS--Process sof sCataract sFormation
Cataractogenesis soccurs safter sacute sor schronic sexposures sof show smany sRads? s-
sANS--200 sRads, s2 sGray
Skin sEyrythemia s(Skin sRedning) soccurs sabove? s- sANS--Above s200 sRad, s2 sGray
Temporary sSterility soccurs sin sthe sadult smale sat sacute sdoses sof show smany sRads?
s- sANS--250 sRads, s2.5 sGray
Pregnant sradiographer sshould? s(3) s- sANS--Always spractice sTDS
Has slegal sright sfor sre-assignment sof sduty
Never sconfuse scollar sbadge swith swaist sbadge
Monthly sdosimetry sreports sis sbased son swhat? s- sANS--OCCUPATIONAL sexposures
sonly.
,Monthly sDosimeter sreports sdoes sNOT sinclude? s- sANS--Natural sor sBackground
sRadiation
What sis sthe srecommended smonthly sdose-equivalent slimit sfor sthe sfetus sin sthe sthird
strimester? s- sANS--0.5 smSv
.05 sRem
NRCP s116
Radiation sworkers scumulative sdose-equivalent slimit sis sdetermined sby? s- sANS--Age
sx s10 smSv s
Age sx s1 sRem
NCRP s110
What sis sthe sOccupational sradiation sdose sequivalent slimit sfor sstochastic seffects sto
sthe swhole sbody? s- sANS--50 smSv s(5 sRem)
When susing sa sC-Arm smobile sunit, sthe sintensification stower sshould sbe? s- sANS--As
sclose sas spossible sto sthe spatient sto sreduce spatient sdose sand sunnecessary
smagnification.
Radiation sexposure sin sair s= s? s- sANS--Roentgens s- sIonization sin sair sdose
smeasurement.
Electrical scurrent sbeing sgenerated sby sa scharge screated sin sair sthru sionization sby
sx/gamma sradiation sis scalled sa? s- sANS--Ion sChamber
The squantity sof sradiation sexposure smeasured sby san sionization schamber swould sbe?
s- sANS--Coulomb/Kilogram
The sC/Kg sor sR sis susually sthe sunit smeasured sin? s- sANS--Air sdose
List sthe s3 smeasurements sthat sare smore sappropriate sfor smeasuring sabsorbed sdoses
sfor sradiation sor soccupational sdose? s- sANS--Gray s(1) s- sRad s(100) s
Seivert s(1) s- sRem s(100)
Curie s- sBacquerel
What stype sof schanges sare sused sto smeasure soccupational sdose? s(3) s- sANS--
Scintillation
Biological
Chemical
Example sof spersonnel smonitor sthat smeasures sradiation sthru schemical schange
sreaction? s- sANS--Film sBadge s- sOperate soff sGurney-Mott stheory.
,Explain sthe sGurney-Mott sTheory...? s- sANS--Describes show san sx-ray sphoton
schanges ssilver shalide sinto satomic ssilver sin sthe sfilm semulsion--a sdefinite schemical
schange.
How slong scan sa sfilm sbadge sbe sworn? s- sANS--No smore sthan sa smonth
Why sshouldn't sfilm sbadges sbe sworn sgreater sthan sa smonth? s- sANS--Extreme
ssensitivity sto senvironmental sconditions.
TLD's soperate sthru? s- sANS--Luminescence s(NO schemical srx's soccur)
Pocket sdosimeters scan sonly swork sfor? s- sANS--1 sday sand smust sbe sreset severyday.
Upper sreading slimit sof s200-300 srads
Pocket sdosimeter suses? s- sANS--Electrical scurrent sas sa smeasurement sof scharge.
The stype sof spersonnel smonitor sthat scould sbe sworn sthe slongest sis sthe? s- sANS--
OSD
Optical sstimulated sdetector scan sbe sworn sup sto? s- sANS--3 smonths sand sbe
ssensitive sto s2 smR
Leakage sradiation sshould sNOT sexceed show smuch smR sat s1 smeter sfrom sthe
sscource? s- sANS--100 smR sper shr
0.1 sRad sper shr
NCRP s102
According sto sBushong, stabletop sintensity sshould sNOT sexceed swhat? s- sANS--2.1
smR sper smin sfor seach smA soperating sat s80 skVp.
Under snormal smodes sof soperation, sfluoroscopic sprocedures sshould sNOT sexceed? s-
sANS--10 sRenkens sper smin.
What sdoes sGSD sstand sfor? s- sANS--Genetic sSignificant sDose
What sis sGSD? s- sANS--Average sgonadal sdose sreceived sby san sexposed spopulation.
sIt sis sused sto sestimate sthe sgenetic simpact sof smedical sradiation sdose son sthe sentire
spopulation.
Beam slimiting sdevices swill? s(3) s- sANS--Improve simage squality
Reduce spatient sdose
Reduce sscatter sradiation
The spurpose sof sreducing sadded sfiltration sis sto sreduce sradiation sdose sto? s- sANS--
Patients sskin
, Recommended samount sof sfiltration sin sFluoro? s- sANS--3 smm sAl sEquivalent
Disadvantage sto shaving s3 smm sAl sEquivalent? s- sANS--Would srequire san sincrease
sin stechnical sfactors sdefeating sthe spurpose sof sfiltration.
What sis sthe susual samount sof sfiltration sin sFluoro? s- sANS--2.5 smm sAl sEquivalent
What seffect sdoes sexcessive sfiltration shave son sxray simage? s- sANS--Reduced
scontrast
# sof sgrid slines sper sinch sor scentimeter sdefines? s- sANS--Grid sFrequency
For sall sdedicated schest sunits swhose stube spotential sroutinely sexceeds s90 skVp, sthe
sminimum srecommended sgrid sratio sis? s- sANS--8:1
Techniques sbelow sor sat s90 skVp swould sutilize swhat sgrid sratio? s- sANS--8:1
Techniques sabove s90 skVp swould sutilize swhat sgrid sratio? s- sANS--12:1
What sis sthe sratio sof sa sgrid swhose slead sstrips sare s0.25 smm sthick, s1.6 smm shigh
sand sare sseperated sby sa s0.10 smm salluminum sspacer? s- sANS--16:1 sgrid
During slatent simage sformation, sthe sconcentration sof smetallic ssilver sin sthe sexposed
scrystals soccurs sin sthe sregion sof sthe ssensitivity sspecks. sThis sexplanation sof sthe
sformation sof sthe simage sis sreffered sto sas? s- sANS--Gurney-Mott stheory
What stype sof sinteractions scause sionization sof sirradiated smaterial? s- sANS--
Photoelectric s- sChanges sinner sshell selectrons
Compton s- sAffects souter sshell selectrons
Which sof sthe sfollowing sxray sinteractions swith smatter sis sprimarily sresponsible sfor
scontrast? s- sANS--Photoelectric seffect
Radiation sproduces sat svery sdiscrete senergies sof sapprox s69 skiloelectron scolts s(kev)
swhen selectrons sinteract swith sthe sK sshell sof sthe stungsten starget satom sis scalled? s-
sANS--Characteristic sRadiation
Pair-Production saffects swhat sportion sof sthe scell? s- sANS--Nucleus. sIt sdoes sNOT
scause sionization.
What stype sof sradiation swould sproduce sthe sgreatest samount sof sbiological sdamage
sin shuman stissue? s- sANS--High sLET's
What sis sthe sactive scomponent sof sthe sTLD? s- sANS--Lithium sFluoride
What sis sused sin sinput sphosphors? s- sANS--Cesium sIodide
