CPT Exam Questions and Answers
Updated 2026
WhichMofMtheMfollowingMtest(s)MareMrequiredMtoMbeMperformedMbyMlawMonMallMnewb
ornsMinMtheMUnitedMStates?M-MAnswerMPKU
WhyMmustMaMphlebotomistMdiscardMtheMfirstMsampleMdrawnMfromMaMheparinMorMsalin
eMlock?M-MAnswerMPotentialMdilutionMofMtheMspecimen
AMfirst-
timeMbloodMdonorMwantsMtoMknowMhowMmuchMbloodMwillMbeMtakenMduringMtheMpro
cedure.MTheMphlebotomistMstatesMthatMtheMaverageMvolumeMofMaM"unit"MofMbloodMis:
M-MAnswerM450ml
TheMdonationMofMbloodMbyMaMpatientMforMhisMorMherMownMuseMatMaMlaterMtimeMis
MknownMas:M-MAnswerMAutologousMdonation
TheMphlebotomistMhasMjustMcompletedMtheMcollectionMofMaMspecimenMforMcoldMaggluti
nins.MWhatMspecialMcollectionMand/orMtransportMmeasuresMmustMbeMtakenMbyMtheMphl
ebotomistMafterMcollectionMofMthisMsample?M-
MAnswerMTheMspecimenMmustMbeMcollectedMinMaMprewarmedMtube
WhichMofMtheMfollowingMsampleMcollectionsMdoesMnotMrequireMtransportationMofMtheMs
ampleMtoMtheMlaboratoryMinMaMchilledMenvironment?M-MAnswerMVitaminMA
TheMphlebotomistMhasMjustMcollectedMaMspecimenMthatMneedsMtoMbeMprotectedMfromM
lightMduringMtransportationMtoMtheMlaboratory.MWhichMofMtheMfollowingMspecimensMdid
MtheMphlebotomistMcollect?M-MAnswerMBeta-carotene
WhichMofMtheMfollowingMsamplesMisMnotMcollectedMforMuseMasMevidenceMinMaMlegalM
proceeding?M-MAnswerMPKUMtesting
TheMphlebotomistMisMcalledMtoMtheMERMtoMpickMupMforensicMspecimensMforMaMsexual
Massault.MTheMmostMimportantMconceptMtheMphlebotomistMmustMadhereMtoMinMhandlin
gMforensicMspecimensMinMproper:M-MAnswerMChainMofMcustody
, WhichMofMtheMfollowingMcriteriaMisMevaluatedMtoMdetermineMifMaMperipheralMbloodMs
mearMisMofMadequateMquality?M-
MAnswerMTheMslideMhasMaMfeatheredMedge,MtheMslideMhasMnoMholes,MtheMslideMhasM
noMstreaksM(allMofMtheMabove)
HemolysisMisMdefinedMas:M-MAnswerMDestructionMofMredMbloodMcells
TheMphlebotomistMhasMreceivedManMorderMtoMdrawMaMspecimenMfromMaMpatientMkno
wnMtoMhaveMaMcoldMagglutinin.MTheMtestMthatMhasMbeenMorderedMrequiresMthatManM
EDTAMwholeMbloodMtubeMbeMcollectedMinMaMprewarmedMtubeMandMremainMwarmMunti
lMtesting.MTheMtestMorderedMisMa:M-MAnswerMCBC
TheMphlebotomistMhasManMorderMtoMdrawMallMofMtheMfollowingMtests.MWhichMoneMof
MtheMtestMsamplesMmustMbeMprotectedMfromMlight?M-MAnswerMVitaminMB12
WhoMregulatesMtheMuseMofMpersonalMprotectiveMequipmentMforMlaboratoryMspecimenMp
rocessing?M-MAnswerMOSHA
YouMareMresponsibleMforMcatalogingMtheMspecimensMbeingMdeliveredMbyMtheMcourierMto
MtheMlaboratory.MWhichMofMtheMfollowingMisMaMuniqueMidentifyingMnumberMthatMyou
MwillMuseMforMcatalogingMsamplesMinMtheMlaboratory?M-MAnswerMAccessionMnumber
YouMareMcalledMtoMassistMinMcentralMprocessing.MTheMspecimensMthatMyouMareMgivenM
toMprocessMrequireMtheMseparationMofMsmallMportionsMofMplasmaMorMserumMfromMcell
ularMelementsMtoMindividualMcontainersMcalled:M-MAnswerMAliquots
TheMphlebotomistMhasMdrawnMaMseriesMofMplainMredMtopM(noMadditives)MforMimmunol
ogicMtesting.MAtMroomMtemperature,McompleteMclottingMofMtheseMtubesMwillMoccurMinM
whatMtimeMframe?M-MAnswerM30MtoM45Mminutes
WhichMofMtheMfollowingMtermsMdescribesMtheMquantitativeMmethodsMusedMtoMmonitorM
theMqualityMofMprocedures?M-MAnswerMQualityMcontrol
PatientMpreparation,Mcollection,MandMspecimenMtransportationMprotocolsMareMallMpartMof
MwhichMofMtheMfollowing?M-MAnswerMQualityMassurance
Updated 2026
WhichMofMtheMfollowingMtest(s)MareMrequiredMtoMbeMperformedMbyMlawMonMallMnewb
ornsMinMtheMUnitedMStates?M-MAnswerMPKU
WhyMmustMaMphlebotomistMdiscardMtheMfirstMsampleMdrawnMfromMaMheparinMorMsalin
eMlock?M-MAnswerMPotentialMdilutionMofMtheMspecimen
AMfirst-
timeMbloodMdonorMwantsMtoMknowMhowMmuchMbloodMwillMbeMtakenMduringMtheMpro
cedure.MTheMphlebotomistMstatesMthatMtheMaverageMvolumeMofMaM"unit"MofMbloodMis:
M-MAnswerM450ml
TheMdonationMofMbloodMbyMaMpatientMforMhisMorMherMownMuseMatMaMlaterMtimeMis
MknownMas:M-MAnswerMAutologousMdonation
TheMphlebotomistMhasMjustMcompletedMtheMcollectionMofMaMspecimenMforMcoldMaggluti
nins.MWhatMspecialMcollectionMand/orMtransportMmeasuresMmustMbeMtakenMbyMtheMphl
ebotomistMafterMcollectionMofMthisMsample?M-
MAnswerMTheMspecimenMmustMbeMcollectedMinMaMprewarmedMtube
WhichMofMtheMfollowingMsampleMcollectionsMdoesMnotMrequireMtransportationMofMtheMs
ampleMtoMtheMlaboratoryMinMaMchilledMenvironment?M-MAnswerMVitaminMA
TheMphlebotomistMhasMjustMcollectedMaMspecimenMthatMneedsMtoMbeMprotectedMfromM
lightMduringMtransportationMtoMtheMlaboratory.MWhichMofMtheMfollowingMspecimensMdid
MtheMphlebotomistMcollect?M-MAnswerMBeta-carotene
WhichMofMtheMfollowingMsamplesMisMnotMcollectedMforMuseMasMevidenceMinMaMlegalM
proceeding?M-MAnswerMPKUMtesting
TheMphlebotomistMisMcalledMtoMtheMERMtoMpickMupMforensicMspecimensMforMaMsexual
Massault.MTheMmostMimportantMconceptMtheMphlebotomistMmustMadhereMtoMinMhandlin
gMforensicMspecimensMinMproper:M-MAnswerMChainMofMcustody
, WhichMofMtheMfollowingMcriteriaMisMevaluatedMtoMdetermineMifMaMperipheralMbloodMs
mearMisMofMadequateMquality?M-
MAnswerMTheMslideMhasMaMfeatheredMedge,MtheMslideMhasMnoMholes,MtheMslideMhasM
noMstreaksM(allMofMtheMabove)
HemolysisMisMdefinedMas:M-MAnswerMDestructionMofMredMbloodMcells
TheMphlebotomistMhasMreceivedManMorderMtoMdrawMaMspecimenMfromMaMpatientMkno
wnMtoMhaveMaMcoldMagglutinin.MTheMtestMthatMhasMbeenMorderedMrequiresMthatManM
EDTAMwholeMbloodMtubeMbeMcollectedMinMaMprewarmedMtubeMandMremainMwarmMunti
lMtesting.MTheMtestMorderedMisMa:M-MAnswerMCBC
TheMphlebotomistMhasManMorderMtoMdrawMallMofMtheMfollowingMtests.MWhichMoneMof
MtheMtestMsamplesMmustMbeMprotectedMfromMlight?M-MAnswerMVitaminMB12
WhoMregulatesMtheMuseMofMpersonalMprotectiveMequipmentMforMlaboratoryMspecimenMp
rocessing?M-MAnswerMOSHA
YouMareMresponsibleMforMcatalogingMtheMspecimensMbeingMdeliveredMbyMtheMcourierMto
MtheMlaboratory.MWhichMofMtheMfollowingMisMaMuniqueMidentifyingMnumberMthatMyou
MwillMuseMforMcatalogingMsamplesMinMtheMlaboratory?M-MAnswerMAccessionMnumber
YouMareMcalledMtoMassistMinMcentralMprocessing.MTheMspecimensMthatMyouMareMgivenM
toMprocessMrequireMtheMseparationMofMsmallMportionsMofMplasmaMorMserumMfromMcell
ularMelementsMtoMindividualMcontainersMcalled:M-MAnswerMAliquots
TheMphlebotomistMhasMdrawnMaMseriesMofMplainMredMtopM(noMadditives)MforMimmunol
ogicMtesting.MAtMroomMtemperature,McompleteMclottingMofMtheseMtubesMwillMoccurMinM
whatMtimeMframe?M-MAnswerM30MtoM45Mminutes
WhichMofMtheMfollowingMtermsMdescribesMtheMquantitativeMmethodsMusedMtoMmonitorM
theMqualityMofMprocedures?M-MAnswerMQualityMcontrol
PatientMpreparation,Mcollection,MandMspecimenMtransportationMprotocolsMareMallMpartMof
MwhichMofMtheMfollowing?M-MAnswerMQualityMassurance