RADIOGRAPHY ESSENTIALS SIMULATED EXAM- CORE Q AND A

RADIOGRAPHY ESSENTIALS
SIMULATED EXAM- CORE Q AND A

Whatbvisbvthebvlinkbvbetweenbvradiationbvdosebvandbvgeneticbveffects?bv-bvanswer--
Thebvlinkbvhasbvbeenbvdemonstratedbvinbvhumanbvstudiesbvandbvanimalbvstudiesbvandbvincr
easedbvriskbvtobvhumansbvcannotbvbebvpredictedbvwithbvrespectbvtobvanbvindividual.

Whatbvchangesbvandbvkilovoltagebvwillbvresultbvinbvthebvgreaterbvreductionbvofbvpatientbvdos
e,bvwhenbvmilliampere-bvsecondsbvisbvadjustedbvtobvcompensatebvforbvthebvchange?bv-
bvanswer--IncreasebvKVPbvbybv30%.



Whatbvkindbvofbvimagebvreceptorbvsystembvspeedsbvwillbvresultbvinbvthebvlowestbvpatientbvd
ose?bv-bvanswer--Fasterbvspeedbvimagebvreceptorbvsystem.

Whatbvisbvthebvprimarybvpurposebvofbvusingbvgonadbvshieldsbvduringbvradiography?bv-
bvanswer--Reducebvthebvlikelihoodbvofbvgeneticbveffects.



Whatbvarebvthebvtwobvtypesbvofbvgonadbvshields?bv-bvanswer--Contactbvandbvshadow.

Whenbvshouldbvgonadbvshieldingbvbebvused?bv-bvanswer--
Whenbvthebvgonadsbvarebvwithinbv5bvcmbvofbvthebvradiationbvfield.

Thebvgreatestbvcausebvofbvunnecessarybvradiationbvtobvpatientsbvthatbvcanbvbebvcontrolledb
vbybvthebvlimitedbvoperatorbvis?bv-bvanswer--Repeatbvexposures.



Thebvlimitedbvoperatorbvcanbvreducebvrepeatbvexposuresbvby?bv-bvanswer--
Clearlybvinstructingbvpatients.

Howbvdoesbvx-raybvbeambvrestrictionbvminimizebvpatientbvexposure?bv-bvanswer--
Itbvlimitsbvthebvradiationbvfieldbvtobvthebvareabvofbvinterest.

Whatbvisbvthebvdevicebvthatbvallowsbvthebvlimitedbvoperatorbvtobvburybvthebvsizebvofbvthebvradi
ationbvfield?bv-bvanswer--Thebvcollimator.

Howbvdoesbvfiltrationbvreducebvpatientbvexposure?bv-bvanswer--
Removebvlongerbvwavelengthsbvphotons.

WhatbvisbvthebvNationalbvCouncilbvonbvRadiationbvProtectionbvandbvMeasurementsbvreco
mmendationbvforbvthebvamountbvofbvtotalbvfiltration?bv-bvanswer--
2.5bvmmbvaluminumbvequivalent.

Whatbvarebvthebvthreebvprincipalbvmethodsbvusedbvtobvprotectbvlimitedbvoperatorsbvfrombvu
nnecessarybvradiationbvexposure?bv-bvanswer--Time,bvdistancebvandbvshielding

Whatbvarebvthreebvtypesbvofbvpersonnelbvradiationbvshielding?bv-bvanswer--
Apron,bvglovebvandbvthyroidbvshield.

, Personnelbvshieldingbvmustbvbebvwornbvonbvthebvrarebvoccasionbvinbvduringbvwhichbvthebvli
mitedbvoperatorbvmaybvneedbvtobvremainbvinbvthebvradiographicbvroombvduringbvexposurebv
tobvassistbvthebvpatientbvinbvmaintainingbvthebvproperbvposition.bvWhatbvisbvthebvsourcebvofbv
thebvgreatestbvradiationbvhazardbvunderbvthisbvcircumstance?bv-bvanswer--
Scatteredbvradiationbvfrombvthebvpatient.

Whatbvisbvthebvtermbvforbvradiationbvthatbvescapesbvfrombvthebvx-raybvtubebvhousing?bv-
bvanswer--Leakagebvradiation.



Whybvarebvlimitedbvoperatorsbvprohibitedbvfrombvactivitiesbvthatbvresultbvinbvdirectbvexposur
ebvtobvthebvprimarybvx-raybvbeambv-bvanswer--
Theybvarebvconsideredbvoccupationallybvexposedbvindividuals.

Distance,bvasbvabvmethodbvusedbvtobvlimitbvoperatorbvexposure,bvmeansbvthat?bv-
bvanswer--

Thebvoperatorbvshouldbvmaximizebvthebvdistancebvfrombvthebvsourcebvduringbvexposure.

Shieldingbvwornbvforbvpersonalbvprotectionbvisbvdesignedbvtobvattenuatebvwhatbvsourcebvofb
vexposure?bv-bvanswer--Scatter bvradiation.



Whatbvisbvanbvacronymbvforbvabvcommonbvtypebvofbvpersonnelbvdosimeter?bv-bvanswer--
TLD

Whatbvisbvthebvrecommendedbvplacementbvforbvabvpersonnelbvdosimeterbvonbvthebvbodybvo
fbvthebvlimitedbvoperator?bv-bvanswer--
Thebvbadgebvitbvshouldbvbebvwornbvinbvthebvregionbvofbvthebvcollarbvonbvthebvanteriorbvsurfac
ebvofbvthebvbodybvandbvoutsidebvthebvleadbvapron,bvifbvworn.

WhatbvisbvthebvNCRPbvrecommendedbvannualbvactivebvdoesbvlimitbvforbvoccupationalbvexp
osure?bv-bvanswer--5.0bvrembv(0.05bvSv)

WhatbvisbvthebvNCRPbvrecommendedbvmonthlybveffectivebv(orbvequivalent)bvdosebvlimitbvt
obvthebvfetusbvforbvabvpregnantbvworker?bv-bvanswer--.05bvrembv(0.0005bvSv)

Radiationbvmonitoringbvofbvpersonnelbvisbvrequiredbvwhenbvwhatbvpercentagebvofbvthebvan
nualbvoccupationalbveffectivebvdosebvlimitbvisbvlikelybvtobvbebvreceived?bv-bvanswer--10%

Whatbvisbvthebvconventionalbvradiationbv(Britishbvsystem)bvunitbvtobvexpressbvradiationbvint
ensitybvinbvthebvair?bv-bvanswer--Roentgen

Thebvconventionalbv(Britishbvsysten)bvunitbvcommonlybvusedbvtobvreportbvoccupationalbvdo
sebvtobvradiationbvworkersbvinbvthebvUnitedbvStatesbvisbvthe?bv-bvanswer--rem

Whatbvisbvthebvconventionalbvradiationbv(Britishbvsystem)bvunitbvofbvabsorbedbvdose?bv-
bvanswer--Rad



AccordingbvtobvthebvBergonié-
bvTribondeaubvlaw,bvwhichbvcellsbvarebvthebvmostbvradiosensitive?bv-bvanswer--

Embryonicbvtissuebvcells