ARRT REGISTRY PRACTICE TEST #1
QUESTIONS WITH CORRECT ANSWERS
All snof snthe snfollowing snEXCEPT sn___ snwill snresult snin snan snincrease snin
snAEC snresponse sntime. sn
a. sndecreasing snthe snkVp
b. snIncreasing snthe snfocal snspot snsize
c. snincreasing snthe snpart snthickness
d. snincreasing snthe snSID sn- snANS--b. snincreasing snthe snfocal snspot snsize
Increasing snthe snfocal snspot snsize sndoes snnot snchange snthe snAEC
snresponse sntime snIt snaffects snthe snspatial snresolution. snDecreasing snthe
snkVp snincreases snthe snexposure sntime snbecause snmore snphotons snare
snabsorbed, snresulting snin snfewer snreaching snthe sncell(s). snThe snsame snis
sntrue snfor snincreasing snpart snthickness. snIncreasing snthe snSID snresults snin
sna snlonger snexposure sntime snbecause snof snbeam sndivergence snand snthe
sndecrease snin snthe snnumber snof snphotons snreaching snthe sncell(s).
Of snthe snfollowing, snthe sngreatest snattenuator snof snx-rays snis:
a. snair
b. snbone
c. snmuscle
d. snfat sn- snANS--b. snbone
Air snallows snfor snthe sngreatest sntransmission snof snx-rays. snThe snprobability
snof snbone snand snsoft sntissue sn(muscle, snfat) snattenuating snx-rays snvia
snCompton sninteractions snis snroughly snthe snsame. snHowever, snsince snbone
snhas sna snhigher sneffective snatomic snnumber snthan snsoft sntissue, snbone
snattenuates snmore snx-rays snvia snphotoelectric sninteractions.
The sn______ snsinus(es) snsit(s) sndirectly snbeneath snthe snsella snturcica.
a. snethmoidal
b. snfrontal
c. snmaxillary
d. snsphenoidal sn- snANS--d. snsphenoidal
The snsphenoidal snsinuses snare snusually snpaired sn(2) snand snare snin snthe
snbody snof snthe snsphenoid snbone. snThe snsinuses snlie snbelow snthe snsella
snturcica snand snextend snbetween snthe snposterior snethmoidal snair sncells snand
snthe sndorsal snsellae.
The sn_____ snvein snis snBEST snsuited snfor snvenipuncture.
,a. snbasilic
b. snpopliteal
c. snfemoral
d. snright sninternal snjugular sn- snANS--a. snbasilic
The snbasilica snand sncephalic snveins snare snthe sn2 snmost sncommon snsites
snof snvenipuncture. snThe snpopliteal snand snfemoral snveins snare snin snthe
snlower snextremities, snwhich snare snharder snto snaccess snand snshould snonly
snbe snused snin sncases snof snemergency. snThe snright sninternal snjugular snvein
snis snmore sncommonly snused snfor sncentral snvenous snaccess snand snis snnot
sna sncommon snsite snfor snvenipuncture.
Primary snradiation snbarriers snmust snbe snAT snLEAST sn____ snfeet snhigh.
a. sn5
b. sn6
c. sn7
d. sn8 sn- snANS--c. sn7
Primary snprotective snbarriers snare snrequired snto snbe sn7 snfeet snhigh snfrom
snthe sndoor.
The sn____ snsphincter snprevents snreflux snof snstomach sncontents sninto snthe
snesophagus.
a. snpyloric
b. sncardiac
c. snileocecal
d. snduodenal sn- snANS--b. sncardiac
The sncardiac snsphincter snis snlocated snat snthe snesophagogastric snjunction.
snWhen snworking snproperly, snit snprevents snback snflow snof snstomach
sncontents sninto snthe snesophagus.
The snAEC sncontrols snwhich snof snthe snfollowing snexposure snvariables?
a. snkVp
b. snfocal snspot snsize sn- snANS--c. snseconds
The snAEC sndevice snis sndesigned snto sncontrol snthe sntime snof snexposure.
snThe snremaining sntechnical snfactors snare snchosen snby snthe snradiographer.
The sn______ snreceives snelectrons snimmediately snafter snthey snare snread snout
snfrom snan snimaging sndetector.
a. sntransformer
b. snhelium snneon snlaser
c. snliquid sncrystal sndisplay
d. snanalog-to-digital snconverter sn- snANS--d. snanalog-to-digital snconverter
, Electrons snare snanalog sndata. snOnce snthey snleave snthe sndetector, snthey
snare snsent snto snthe snanalog-to-digital snconverter snfor snsampling snand
snquantization. snHence, snthe snimage snis snconverted sninto sna sndigital snimage.
An snimage snthat snhas snmany snshades snof sngray snwith snfew sndifferences
snamong snthem snis sndefined snas snexhibiting:
a. snhigh snspatial snresolution
b. snlow sncontrast
c. snhigh sndynamic snrange
d. snlow snbit sndepth sn- snANS--b. snlow sncontrast
Low-contrast snimages snconsist snof snmany sngray snshades snwith snvery snlittle
sndifferences snamong snthe snshades. snThese snimages snare snalso snreferred
snto snas snexhibiting snlong-scale sncontrast. snSpatial snresolution sndeals snwith
snimage snsharpness snand sndynamic snrange snis snthe snimaging sndetector's
snrange snof snresponse snto snexposures. snBit sndepth snhas snto sndo snwith
snthe snnumber snof sngray snshades snthat sna snsystem sncan snyield. snA snlow
snbit sndepth snsystem snwould snactually snresult snin snan snimage snthat
sndisplays snfew snshades snof sngray. snIn snother snwords, snthe snimage snwould
snappear snmore snblack snand snwhite.
Which snof snthe snfollowing snstructures snis snlocated snin snthe snmediastinum?
a. snright snmiddle snlobe snand snesophagus
b. snleft snupper snlobe snand snheart
c. snaorta snand snthyroid
d. sntrachea snand snthymus sn- snANS--d. sntrachea snand snthymus
Structures snlocated snin snthe snmediastinum snare snthe snheart, sngreat snvessels,
sntrachea, snesophagus, snthymus, snlymphatics, snnerves, snfibrous sntissue, snand
snfat.
A snterminally snill snpatient snhas snasked snthe sndoctor snabout snpossible
snvolunteer snopportunities snin snthe snhospital. snShe snsays snthat snif snshe
sncan snvolunteer snin snthe snhospital, snshe snmight snbe snable snto snextend
snher snlife sna snbit snlonger snfrom sndoing sngood sndeeds. snThis snrepresents
snthe sn____ snstage snof sngrief snfor snthe snpatient. sn
a. snbargaining
b. snanger
c. sndenial
d. sndepression sn- snANS--a. snbargaining
The snbargaining snstage snfocuses snon snthe snhope snthe snpatient snhas snto
snextend snher snlife. snAnger sncan snoccur snonce snthe snpatient snrealizes snher
snlife snis snbeing sninterrupted snby snthe snillness. snDenial sncan sninclude
snrejecting sninformation snand snpreferring snto snbe snleft snalone. snDepression
QUESTIONS WITH CORRECT ANSWERS
All snof snthe snfollowing snEXCEPT sn___ snwill snresult snin snan snincrease snin
snAEC snresponse sntime. sn
a. sndecreasing snthe snkVp
b. snIncreasing snthe snfocal snspot snsize
c. snincreasing snthe snpart snthickness
d. snincreasing snthe snSID sn- snANS--b. snincreasing snthe snfocal snspot snsize
Increasing snthe snfocal snspot snsize sndoes snnot snchange snthe snAEC
snresponse sntime snIt snaffects snthe snspatial snresolution. snDecreasing snthe
snkVp snincreases snthe snexposure sntime snbecause snmore snphotons snare
snabsorbed, snresulting snin snfewer snreaching snthe sncell(s). snThe snsame snis
sntrue snfor snincreasing snpart snthickness. snIncreasing snthe snSID snresults snin
sna snlonger snexposure sntime snbecause snof snbeam sndivergence snand snthe
sndecrease snin snthe snnumber snof snphotons snreaching snthe sncell(s).
Of snthe snfollowing, snthe sngreatest snattenuator snof snx-rays snis:
a. snair
b. snbone
c. snmuscle
d. snfat sn- snANS--b. snbone
Air snallows snfor snthe sngreatest sntransmission snof snx-rays. snThe snprobability
snof snbone snand snsoft sntissue sn(muscle, snfat) snattenuating snx-rays snvia
snCompton sninteractions snis snroughly snthe snsame. snHowever, snsince snbone
snhas sna snhigher sneffective snatomic snnumber snthan snsoft sntissue, snbone
snattenuates snmore snx-rays snvia snphotoelectric sninteractions.
The sn______ snsinus(es) snsit(s) sndirectly snbeneath snthe snsella snturcica.
a. snethmoidal
b. snfrontal
c. snmaxillary
d. snsphenoidal sn- snANS--d. snsphenoidal
The snsphenoidal snsinuses snare snusually snpaired sn(2) snand snare snin snthe
snbody snof snthe snsphenoid snbone. snThe snsinuses snlie snbelow snthe snsella
snturcica snand snextend snbetween snthe snposterior snethmoidal snair sncells snand
snthe sndorsal snsellae.
The sn_____ snvein snis snBEST snsuited snfor snvenipuncture.
,a. snbasilic
b. snpopliteal
c. snfemoral
d. snright sninternal snjugular sn- snANS--a. snbasilic
The snbasilica snand sncephalic snveins snare snthe sn2 snmost sncommon snsites
snof snvenipuncture. snThe snpopliteal snand snfemoral snveins snare snin snthe
snlower snextremities, snwhich snare snharder snto snaccess snand snshould snonly
snbe snused snin sncases snof snemergency. snThe snright sninternal snjugular snvein
snis snmore sncommonly snused snfor sncentral snvenous snaccess snand snis snnot
sna sncommon snsite snfor snvenipuncture.
Primary snradiation snbarriers snmust snbe snAT snLEAST sn____ snfeet snhigh.
a. sn5
b. sn6
c. sn7
d. sn8 sn- snANS--c. sn7
Primary snprotective snbarriers snare snrequired snto snbe sn7 snfeet snhigh snfrom
snthe sndoor.
The sn____ snsphincter snprevents snreflux snof snstomach sncontents sninto snthe
snesophagus.
a. snpyloric
b. sncardiac
c. snileocecal
d. snduodenal sn- snANS--b. sncardiac
The sncardiac snsphincter snis snlocated snat snthe snesophagogastric snjunction.
snWhen snworking snproperly, snit snprevents snback snflow snof snstomach
sncontents sninto snthe snesophagus.
The snAEC sncontrols snwhich snof snthe snfollowing snexposure snvariables?
a. snkVp
b. snfocal snspot snsize sn- snANS--c. snseconds
The snAEC sndevice snis sndesigned snto sncontrol snthe sntime snof snexposure.
snThe snremaining sntechnical snfactors snare snchosen snby snthe snradiographer.
The sn______ snreceives snelectrons snimmediately snafter snthey snare snread snout
snfrom snan snimaging sndetector.
a. sntransformer
b. snhelium snneon snlaser
c. snliquid sncrystal sndisplay
d. snanalog-to-digital snconverter sn- snANS--d. snanalog-to-digital snconverter
, Electrons snare snanalog sndata. snOnce snthey snleave snthe sndetector, snthey
snare snsent snto snthe snanalog-to-digital snconverter snfor snsampling snand
snquantization. snHence, snthe snimage snis snconverted sninto sna sndigital snimage.
An snimage snthat snhas snmany snshades snof sngray snwith snfew sndifferences
snamong snthem snis sndefined snas snexhibiting:
a. snhigh snspatial snresolution
b. snlow sncontrast
c. snhigh sndynamic snrange
d. snlow snbit sndepth sn- snANS--b. snlow sncontrast
Low-contrast snimages snconsist snof snmany sngray snshades snwith snvery snlittle
sndifferences snamong snthe snshades. snThese snimages snare snalso snreferred
snto snas snexhibiting snlong-scale sncontrast. snSpatial snresolution sndeals snwith
snimage snsharpness snand sndynamic snrange snis snthe snimaging sndetector's
snrange snof snresponse snto snexposures. snBit sndepth snhas snto sndo snwith
snthe snnumber snof sngray snshades snthat sna snsystem sncan snyield. snA snlow
snbit sndepth snsystem snwould snactually snresult snin snan snimage snthat
sndisplays snfew snshades snof sngray. snIn snother snwords, snthe snimage snwould
snappear snmore snblack snand snwhite.
Which snof snthe snfollowing snstructures snis snlocated snin snthe snmediastinum?
a. snright snmiddle snlobe snand snesophagus
b. snleft snupper snlobe snand snheart
c. snaorta snand snthyroid
d. sntrachea snand snthymus sn- snANS--d. sntrachea snand snthymus
Structures snlocated snin snthe snmediastinum snare snthe snheart, sngreat snvessels,
sntrachea, snesophagus, snthymus, snlymphatics, snnerves, snfibrous sntissue, snand
snfat.
A snterminally snill snpatient snhas snasked snthe sndoctor snabout snpossible
snvolunteer snopportunities snin snthe snhospital. snShe snsays snthat snif snshe
sncan snvolunteer snin snthe snhospital, snshe snmight snbe snable snto snextend
snher snlife sna snbit snlonger snfrom sndoing sngood sndeeds. snThis snrepresents
snthe sn____ snstage snof sngrief snfor snthe snpatient. sn
a. snbargaining
b. snanger
c. sndenial
d. sndepression sn- snANS--a. snbargaining
The snbargaining snstage snfocuses snon snthe snhope snthe snpatient snhas snto
snextend snher snlife. snAnger sncan snoccur snonce snthe snpatient snrealizes snher
snlife snis snbeing sninterrupted snby snthe snillness. snDenial sncan sninclude
snrejecting sninformation snand snpreferring snto snbe snleft snalone. snDepression
