Pulmonary CPFT Questions and
Answers Updated 2026
WhatAdoesAgasAchromatographyAdo?AAndAwhatAtypeAisAit?AKeyAthingAtoArememberAaboutAt
hisA1?A-
AAnswerAAllowsAforAmeasurementAofAseveralAdifferentAgasesAwithAoneAdetector.AAbsorptio
nAtype.ARememberAit'sAnotAfast,Acan'tAmeasureAbreathAbyAbreath.
WhatAtypeAofAgasAdoesAGasAChromatrographyArequire?A-
AAnswerAHelium.AButAneonAisAsubstitutedAforAheliumAinAtheAmeasurementAofAlungAvolum
esAandAdiffusingAcapacity
WhatAareA2AADVAandADisADVAofAGasAChromatographyA-
AAnswerAADV:ACanAanalyzeAmanyAgasesAatAoneAtime.AVeryAAccurate.
Dis:ARequiresAmoreAtimeAthanAothers.AAffectedAbyAwaterAandACO2
WhatAgasesAdowsAGasAChromatographyAmeasure?A-AAnswerANeon,A02,AN2,ACO.
WhatAareA2AfeaturesAofAmassAspectrometry.A-
AAnswerADrawnAbyAaAvacuumAintoAanAionizationAchamber.AAndAcanAmeasureAmoreAthan
AoneAgasAatAaAtime.
AdvantagesAandADisADVAofAMassASpectrometry:A-
AAnswerAADV:ARapidAresponseAtime.ACapableAofAbreathAbyAbreathAanalysis.AAllowsAforA
multipleAgasAanalysisAofAHe,n2,o2,AC02.A
DisAdv:AVeryAexpensive.ALargeAinAsize.ARequiresAhighAmaintenance.
WhenAisAMassASpecAmostAsuitable?A-
AAnswerAMostAsuitableAforAanalysisAofAseveralApatientsAatAonceAratherAthanAforAindividu
alAtesting.
WhenAtroubleshootingAMassASpec,AwhatAshouldAyouAdoAifAsumAofAallAgasesAisAlessAthanA1
00%?A-
AAnswerAIncreaseAgainAuntilA100%AisAreached.AIfAtooAhighAthenAdecreaseAtheAgain.
,HowAdoesACarbonADioxide/CarbonAMonoxide/MethaneA(CH4)Awork?A-
AAnswerAHasAchopperAmotor,AwhichAbreaksAupAinfraredAlightAbyApulses.
WhereAisAtheACH4AInfraredAsourceAconnected?A-
AAnswerAConnectedAtoAC/motorAandAChopperAblade
WhatAdoesAtheAInfraredAabsorptionAanalyzerAmeasureAinAtheACh4?A-
AAnswerAMeasuresAC02AorACO
HowAdoAyouAcalibrateACH4?AWhatAdoAyouAhaveAtoArememberAaboutAtheAgain?A-
AAnswerACalibrateAtoARAA(0%)AandAaAknownAconcentrationA(.3%ACO),AthenArezero.AAdjus
tAgainAupAorAdownAtoAmakeAitAmatch
IsACH4AaffectedAbyAanyAchangesAinApartialApressure?A-AAnswerANo
WhatAcanAaffectAcalibrationAinACH4?A-
AAnswerALongAsampleAlinesAandAmoisture.ACanAaffectAandAdelayAresponseAtime.
WhatAisAanotherAnameAforAHeliumAanalyzer?ANameA2A-
AAnswerAThermalAconductivityAorAWheatstoneABridge
HowAdoAyouAcalibrateAforAHelium?A-
AAnswerACalibrateAtoARAA(0%)AandAaAknownAamountA(10%),AthenArezero.AAllowAHeAtoAc
learAtoArezero
WhatAisAimportantAsafetyAruleAtoArememberAwhenAusingAHe?A-
AAnswerADoAnotAuseAw/AflammableAgases.ACouldAleadAtoAexplosion.
WhatAisAanotherAnameAforAtheANitrogenAAnalyzer?A-AAnswerAGeisslerAtubeAIonizer.
WhatAmightAbeAtheAcauseAofAerraticAzeroAreadingsAwhenAusingAN2?A-
AAnswerAaspirationAofAwaterAthroughAtheAneedleAvalve.AMoistureAwillAshowAspikeAifAgas
AgetsAintoAsample
TrueAorAfalse:AN2AprovidesAbreathAbyAbreathAanalysisAandAisAfast.A-AAnswerATrue
, WhatAisAanotherAnameAforAtheAPC02Aelectrode?A(RememberAC02A=ASeA{see}AOde)A-
AAnswerASeveringhausAElectrode
AnotherAnameAforAP02AElectrode.A(RememberAP.OfficerA=AKeonAC.A)A-
AAnswerAClarkAElectrode
PHAelectrodeAisAalsoAknownAasA..A(RememberAtheAsoundAPHAmakesAandASgtABaker'sArespo
nse)A-AAnswerASanzAElectrode
WhatAtypeAofAanalyzerAhasAaANylonAandATeflonAMembrane?A-
AAnswerASeveringhausAElectrode
WhatAtypeAofAelectrodeArequiresAaAlotAofAthingsAthatAbeginAwithAletterAP?A-
AAnswerAP02AakaAClarkAElectrode
ThisAelectrodeAhasAaAPlatinumAcathodeAandAaApolyproyleneA(gasApermeable)Amembrane.A-
AAnswerAClarkAElectrode
ThisAelectrodeArequiresAaApolarizingAvoltageA-AAnswerAClarkAElectrode
ThisAelectrodeArequiresAcleaningAofAtheAtipAwithA_____AbecauseApolypropyleneAattractsAprot
einAasApartAofAroutineAsensorAmaintenance.A-AAnswerAPumice
OnlyAoneAw/A2Aelectrodes,A1AforAmeasuringAandA1AforAreference.A-
AAnswerAClarkAElectrode
WhatAelectrodeAdoAyouAthinkAofAwhenAyouAhearApolypropylene?A(RememberAtheAP'sAandA0'
s)A-AAnswerAClarkAElectrodeAakaAP02
ThisAelectrodeAcontainsAaAKCIAbufferAsolutionAw/AaAknownAPHAthatAisAsealedAandAhasAaAc
eramicAplug.AAlsoAhasAaAconstantAelectricalApotentialA-AAnswerASanzAElectrode
Answers Updated 2026
WhatAdoesAgasAchromatographyAdo?AAndAwhatAtypeAisAit?AKeyAthingAtoArememberAaboutAt
hisA1?A-
AAnswerAAllowsAforAmeasurementAofAseveralAdifferentAgasesAwithAoneAdetector.AAbsorptio
nAtype.ARememberAit'sAnotAfast,Acan'tAmeasureAbreathAbyAbreath.
WhatAtypeAofAgasAdoesAGasAChromatrographyArequire?A-
AAnswerAHelium.AButAneonAisAsubstitutedAforAheliumAinAtheAmeasurementAofAlungAvolum
esAandAdiffusingAcapacity
WhatAareA2AADVAandADisADVAofAGasAChromatographyA-
AAnswerAADV:ACanAanalyzeAmanyAgasesAatAoneAtime.AVeryAAccurate.
Dis:ARequiresAmoreAtimeAthanAothers.AAffectedAbyAwaterAandACO2
WhatAgasesAdowsAGasAChromatographyAmeasure?A-AAnswerANeon,A02,AN2,ACO.
WhatAareA2AfeaturesAofAmassAspectrometry.A-
AAnswerADrawnAbyAaAvacuumAintoAanAionizationAchamber.AAndAcanAmeasureAmoreAthan
AoneAgasAatAaAtime.
AdvantagesAandADisADVAofAMassASpectrometry:A-
AAnswerAADV:ARapidAresponseAtime.ACapableAofAbreathAbyAbreathAanalysis.AAllowsAforA
multipleAgasAanalysisAofAHe,n2,o2,AC02.A
DisAdv:AVeryAexpensive.ALargeAinAsize.ARequiresAhighAmaintenance.
WhenAisAMassASpecAmostAsuitable?A-
AAnswerAMostAsuitableAforAanalysisAofAseveralApatientsAatAonceAratherAthanAforAindividu
alAtesting.
WhenAtroubleshootingAMassASpec,AwhatAshouldAyouAdoAifAsumAofAallAgasesAisAlessAthanA1
00%?A-
AAnswerAIncreaseAgainAuntilA100%AisAreached.AIfAtooAhighAthenAdecreaseAtheAgain.
,HowAdoesACarbonADioxide/CarbonAMonoxide/MethaneA(CH4)Awork?A-
AAnswerAHasAchopperAmotor,AwhichAbreaksAupAinfraredAlightAbyApulses.
WhereAisAtheACH4AInfraredAsourceAconnected?A-
AAnswerAConnectedAtoAC/motorAandAChopperAblade
WhatAdoesAtheAInfraredAabsorptionAanalyzerAmeasureAinAtheACh4?A-
AAnswerAMeasuresAC02AorACO
HowAdoAyouAcalibrateACH4?AWhatAdoAyouAhaveAtoArememberAaboutAtheAgain?A-
AAnswerACalibrateAtoARAA(0%)AandAaAknownAconcentrationA(.3%ACO),AthenArezero.AAdjus
tAgainAupAorAdownAtoAmakeAitAmatch
IsACH4AaffectedAbyAanyAchangesAinApartialApressure?A-AAnswerANo
WhatAcanAaffectAcalibrationAinACH4?A-
AAnswerALongAsampleAlinesAandAmoisture.ACanAaffectAandAdelayAresponseAtime.
WhatAisAanotherAnameAforAHeliumAanalyzer?ANameA2A-
AAnswerAThermalAconductivityAorAWheatstoneABridge
HowAdoAyouAcalibrateAforAHelium?A-
AAnswerACalibrateAtoARAA(0%)AandAaAknownAamountA(10%),AthenArezero.AAllowAHeAtoAc
learAtoArezero
WhatAisAimportantAsafetyAruleAtoArememberAwhenAusingAHe?A-
AAnswerADoAnotAuseAw/AflammableAgases.ACouldAleadAtoAexplosion.
WhatAisAanotherAnameAforAtheANitrogenAAnalyzer?A-AAnswerAGeisslerAtubeAIonizer.
WhatAmightAbeAtheAcauseAofAerraticAzeroAreadingsAwhenAusingAN2?A-
AAnswerAaspirationAofAwaterAthroughAtheAneedleAvalve.AMoistureAwillAshowAspikeAifAgas
AgetsAintoAsample
TrueAorAfalse:AN2AprovidesAbreathAbyAbreathAanalysisAandAisAfast.A-AAnswerATrue
, WhatAisAanotherAnameAforAtheAPC02Aelectrode?A(RememberAC02A=ASeA{see}AOde)A-
AAnswerASeveringhausAElectrode
AnotherAnameAforAP02AElectrode.A(RememberAP.OfficerA=AKeonAC.A)A-
AAnswerAClarkAElectrode
PHAelectrodeAisAalsoAknownAasA..A(RememberAtheAsoundAPHAmakesAandASgtABaker'sArespo
nse)A-AAnswerASanzAElectrode
WhatAtypeAofAanalyzerAhasAaANylonAandATeflonAMembrane?A-
AAnswerASeveringhausAElectrode
WhatAtypeAofAelectrodeArequiresAaAlotAofAthingsAthatAbeginAwithAletterAP?A-
AAnswerAP02AakaAClarkAElectrode
ThisAelectrodeAhasAaAPlatinumAcathodeAandAaApolyproyleneA(gasApermeable)Amembrane.A-
AAnswerAClarkAElectrode
ThisAelectrodeArequiresAaApolarizingAvoltageA-AAnswerAClarkAElectrode
ThisAelectrodeArequiresAcleaningAofAtheAtipAwithA_____AbecauseApolypropyleneAattractsAprot
einAasApartAofAroutineAsensorAmaintenance.A-AAnswerAPumice
OnlyAoneAw/A2Aelectrodes,A1AforAmeasuringAandA1AforAreference.A-
AAnswerAClarkAElectrode
WhatAelectrodeAdoAyouAthinkAofAwhenAyouAhearApolypropylene?A(RememberAtheAP'sAandA0'
s)A-AAnswerAClarkAElectrodeAakaAP02
ThisAelectrodeAcontainsAaAKCIAbufferAsolutionAw/AaAknownAPHAthatAisAsealedAandAhasAaAc
eramicAplug.AAlsoAhasAaAconstantAelectricalApotentialA-AAnswerASanzAElectrode
