CPT - Certified Phlebotomy
Technician Questions and Answers
Updated 2026
WhatMmaskMneedsMtoMbeMwornMinMaMroomMwithMairborneMisolationMprecautionsM-
MAnswerMN-95MMaskM(plusMglovesM&MaMgown)
WhatMdoesMPPEMstandMforM-MAnswerMPersonalMProtectiveMEquipment
WhatMPPEMneedsMtoMbeMwornMinMaMroomMwithMdropletMisolationMprecautionsM-
MAnswerMGloves,Mmask,MeyeMprotectionM&Mgown
WhatMPPEMneedsMtoMbeMwornMinMaMroomMwithMcontactMprecautionsM-
MAnswerMGlovesM&Mgown
WhatMgaugeMneedleMwillMcauseMhemolysisM-
MAnswerM25MgaugeM(andMabove)M(toMsmallM&MitMbreaksMtheMbloodMup;MtoMlargeMan
dMitMslamsMintoMtheMbackMofMtheMtube)
WhatMisMtheMrangeMofMneedleMgaugesMforMbloodMdonationM-MAnswerM16-18Mgauge
NeedlesMforMphlebotomyMshouldMbeMpitchedMhowMmanyMdegreesM-MAnswerM15o-
30MdegreeMangle
NeedlesMshouldMbeMinsertedMhowMfarM-MAnswerM¼"-
M½"MorMuntilMyouMreachMaMchangeMofMresistance
WhatMareMtheMthreeMvesselsMofMtheMantiMcubitalMfossaM-
MAnswerMMedianMCubitalMVein,MCephalicMVein,MBrachial/basilicMVein
WhichMvesselMisMtheMfirstMchoiceMforMaMbloodMdrawM-MAnswerMMedianMCubitalMVein
WhichMvesselMisMtheMsecondMchoiceMforMaMbloodMdrawM-MAnswerMCephalicMVein
, WhichMvesselMisMtheMthirdMchoiceMforMaMbloodMdrawM-MAnswerMBrachial/basilicMVein
WhichMvesselMisMlateralMtoMtheMpatient'sMbodyM-MAnswerMCephalicMVein
WhatMareMtheMnamesMofMtheMthreeMmainMvesselsMofMtheMbodyM-
MAnswerMVeins,Marteries,Mcapillaries
WhatMareMtheMmicroscopicMbloodMvesselsMresponsibleMforMO2MexchangeM-
MAnswerMCapillaries
HowMmuchMbloodMisMneededMforMeachMbloodMcultureMbottleM-MAnswerMAdults:M8-
10mlM(3-4mlMinMeachMbottle,MaerobicM&Manaerobic)
HowMmanyMlitersMofMbloodMdoesMtheMaverageMadultMhaveM-MAnswerM5M(4-6Mliters)
WhatMisMtheMnameMofMtheMpartMofMtheMbloodMwhichMsuspendsMallMofMitsMwholeMm
aterialM-MAnswerMPlasma
WhatMisMserumM-MAnswerMPlasmaMwithoutMtheMclottingMfactor
WhatMtypeMofManemiaMcanMoccurMinMinfantsMbecauseMofMfrequentMexcessiveMbloodMdr
awingM-MAnswerMIatrogenicManemia
WhatMisMtheMlifespanMofManMRBCM-MAnswerM90-120Mdays
WhatMdoesMCBCMstandMforM-MAnswerMCompleteMbloodMcount
WhatMisMaMCBCMwithMdifferentialM-
MAnswerMmeasuresMtheMlevelsMofMredMbloodMcells,MwhiteMbloodMcells,MplateletMlevels,
MhemoglobinMandMhematocrit
WhatMareMresponsibleMforMformingMclotsM-MAnswerMPlateletsM(Thrombocytes)
Technician Questions and Answers
Updated 2026
WhatMmaskMneedsMtoMbeMwornMinMaMroomMwithMairborneMisolationMprecautionsM-
MAnswerMN-95MMaskM(plusMglovesM&MaMgown)
WhatMdoesMPPEMstandMforM-MAnswerMPersonalMProtectiveMEquipment
WhatMPPEMneedsMtoMbeMwornMinMaMroomMwithMdropletMisolationMprecautionsM-
MAnswerMGloves,Mmask,MeyeMprotectionM&Mgown
WhatMPPEMneedsMtoMbeMwornMinMaMroomMwithMcontactMprecautionsM-
MAnswerMGlovesM&Mgown
WhatMgaugeMneedleMwillMcauseMhemolysisM-
MAnswerM25MgaugeM(andMabove)M(toMsmallM&MitMbreaksMtheMbloodMup;MtoMlargeMan
dMitMslamsMintoMtheMbackMofMtheMtube)
WhatMisMtheMrangeMofMneedleMgaugesMforMbloodMdonationM-MAnswerM16-18Mgauge
NeedlesMforMphlebotomyMshouldMbeMpitchedMhowMmanyMdegreesM-MAnswerM15o-
30MdegreeMangle
NeedlesMshouldMbeMinsertedMhowMfarM-MAnswerM¼"-
M½"MorMuntilMyouMreachMaMchangeMofMresistance
WhatMareMtheMthreeMvesselsMofMtheMantiMcubitalMfossaM-
MAnswerMMedianMCubitalMVein,MCephalicMVein,MBrachial/basilicMVein
WhichMvesselMisMtheMfirstMchoiceMforMaMbloodMdrawM-MAnswerMMedianMCubitalMVein
WhichMvesselMisMtheMsecondMchoiceMforMaMbloodMdrawM-MAnswerMCephalicMVein
, WhichMvesselMisMtheMthirdMchoiceMforMaMbloodMdrawM-MAnswerMBrachial/basilicMVein
WhichMvesselMisMlateralMtoMtheMpatient'sMbodyM-MAnswerMCephalicMVein
WhatMareMtheMnamesMofMtheMthreeMmainMvesselsMofMtheMbodyM-
MAnswerMVeins,Marteries,Mcapillaries
WhatMareMtheMmicroscopicMbloodMvesselsMresponsibleMforMO2MexchangeM-
MAnswerMCapillaries
HowMmuchMbloodMisMneededMforMeachMbloodMcultureMbottleM-MAnswerMAdults:M8-
10mlM(3-4mlMinMeachMbottle,MaerobicM&Manaerobic)
HowMmanyMlitersMofMbloodMdoesMtheMaverageMadultMhaveM-MAnswerM5M(4-6Mliters)
WhatMisMtheMnameMofMtheMpartMofMtheMbloodMwhichMsuspendsMallMofMitsMwholeMm
aterialM-MAnswerMPlasma
WhatMisMserumM-MAnswerMPlasmaMwithoutMtheMclottingMfactor
WhatMtypeMofManemiaMcanMoccurMinMinfantsMbecauseMofMfrequentMexcessiveMbloodMdr
awingM-MAnswerMIatrogenicManemia
WhatMisMtheMlifespanMofManMRBCM-MAnswerM90-120Mdays
WhatMdoesMCBCMstandMforM-MAnswerMCompleteMbloodMcount
WhatMisMaMCBCMwithMdifferentialM-
MAnswerMmeasuresMtheMlevelsMofMredMbloodMcells,MwhiteMbloodMcells,MplateletMlevels,
MhemoglobinMandMhematocrit
WhatMareMresponsibleMforMformingMclotsM-MAnswerMPlateletsM(Thrombocytes)