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This document contains study questions with correct solutions for the DAANCE (Dental Anesthesia Assistant National Certification Examination), updated for the 2025/2026 exam cycle. It covers all essential modules, including patient evaluation, anesthesia preparation, pharmacology, intraoperative monitoring, and emergency procedures. The questions are designed to reinforce understanding and support thorough preparation for the certification exam.
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Nose/nasalapassages,asinuses,apharynxa-aCORRECTaANSWER-Whataconsistsaofatheaupperaairway? Larynx,atrachea,abronchi,abronchioles,apulmonaryaalveolia-aCORRECTaANSWER- Whataconsistsaofathealoweraairway? Immediateahypersensitivityaresponseathatainvolvesaantigen-antibodyareactionsa(IgE)a- aCORRECTaANSWER-Whataisatheamostasevereatypeaofaallergicareaction? Livera-aCORRECTaANSWER-Whataisathealargestaglandainatheabody? Pediatricapatientsa-aCORRECTaANSWER- Whataageagroupaofapatientsawillahypoxiaaoccuramuchamorearapidlyain?aBradycardiaaisaaasignarelatingat oahypoxia HealthaInsuranceaPortabilityaandaAccountabilityaActa(HIPAA)a-aCORRECTaANSWER- aWhatadoesaHIPAAastandafor? Ischemiaa-aCORRECTaANSWER- Aadecreaseainabloodaflowainatheacoronaryaarteries?aCanatemporarilyaorapermanentlyadamageatheahea rtamuscleabyadecreasingaO2aavailableatoatheamuscleacells? 1 ayear-aPlavixa&aAspirina-aCORRECTaANSWER- Ifaaacardiacapatientajustahadastentaplacement,ahowalongaareatheyarequiredatoabeaonaantiplateletadrugs ?aWhataareathea 2 adrugsatheyausuallyadoatogether? SubacuteaBacterialaEndocarditisa(SBE)aakaainfectiousaendocarditisa-aCORRECTaANSWER- Typeaofainfectionathatacanafurtheradamageaheartavalvesaoracauseasystemicainfections?aRequires aantibioticaprophylaxis Pawavea-aCORRECTaANSWER-Atrialadepolarizationa(contraction) QRSacomplexa-aCORRECTaANSWER-Ventricularadepolarization Tawavea-aCORRECTaANSWER-Ventriculararepolarizationa(relaxation) Cushing'sadiseasea-aCORRECTaANSWER- Typeaofadiseaseadueatoaexcessiveasecretionaofacorticosteroidadueatoaaapresenceaofaaatumoraorafroma administrationaofahighadosesaofacorticosteriodadrugsa(ex:aPrednisone)
Hyperthyroidisma-aCORRECTaANSWER-Untreateda areaataanaincreasedariska foraoutpatientaanesthesiaaandatendatoabeasensitiveatoaepinephrineainaaalocalaanesthetic Myxedemaa-aCORRECTaANSWER-Chronicalong- termahypothyroidism,amostacommonlyaseenainaolderaadultsa(elderlyawomen)awhoahaveahadaaastrokea orastoppedatakingatheirathyroidamedication Thyroidacrisisa-aCORRECTaANSWER- MostasevereacomplicationaofahyperthyroidismafromaanaOMSaperspective DiabetesaTypea 1 a-aCORRECTaANSWER-Insulin-dependent DiabetesaTypea 2 a-aCORRECTaANSWER-Non-insulinadependent ElevatedaLFTsa(Liverafunctionatests)a-aCORRECTaANSWER- Elevatedalevelaofaseveralaliveraenzymesaandabilirubinaisaoftenatermed? Womena-aCORRECTaANSWER- WhatagenderaisaPropofolamorearapidlyaredistributedainaandarequirea 10 - 15%alargeradose? Childrena-aCORRECTaANSWER- WhataageagroupawouldaPropofolaredistributeaveryarapidly,aandarequireaataleasta50%aincreaseaina drugadose? Diffusionahypoxiaa-aCORRECTaANSWER- WhataisaaacomplicationaofaN2Oarapidlyamovingafromabloodatoaalveoliaofalungs,aandadisplacesaotheraga ses,aincludingaO Generalaanesthesiaa-aCORRECTaANSWER- Patientaisanotaaroused,aevenaduringapainfulastimulation.aRequiredaairwayainterventiona&acardiovascu larafunctionaisaimpaired Deepasedation/analgesiaa-aCORRECTaANSWER- Can'tabeaeasilyaaroused,apurposefularesponseatoapain,aandarequiresaairwayaassistance Moderateasedationa(consciousasedation)a-aCORRECTaANSWER- Responseatoaverbalaoralightatactileatouchawithanoacompromiseaofaairway Minimalasedationa(anxiolysis)a-aCORRECTaANSWER- Normalaresponseatoaverbalastimulationawithaairwayareflexes,aventiliationa&acardiovascularafunctionsa areaunaffected ValiumaoraVerseda-aCORRECTaANSWER-Whatadrugsaareagivenaforaminimalasedationa(anxiolysis)
100%aO2,aDantrolenea(2.5amg/kg)aandaIVacoldasalinea(NOTaRinger's)a-aCORRECTaANSWER- WhataisatheatreatmentaforaMalignantaHyperthermia? Hypertensiona-aCORRECTaANSWER-Whataemergencyawouldaaabetaablockerabeagiven? 0.04amga-aCORRECTaANSWER- WhataisatheamaximumadoseaofaEpiaforaaapatientawithacardiovascularadisease? Asystolea-aCORRECTaANSWER-Cardiacaarrest-ahasanoarhythmaoracontractionaofaEKG Ventricularafibrillationa(V-fib)a-aCORRECTaANSWER- NoadiscernableaP,aQRSaoraTawavesanoted.aNoapumpingaofabloodaataallaandanoadepolarizationaofatheave ntricles V-FibaoraAsytolea-aCORRECTaANSWER-Whataarea 2 aemergenciesawouldaEpiabeagivenain? Lidocainea-aCORRECTaANSWER-WhataareaPVCsatreatedawith? Versed,avaliumaorapropofola-aCORRECTaANSWER- Whatamedicationsacanabeagivenaforaaasevereacaseaofahyperventilation? Ventricularatachycardiaa(V-tach)a-aCORRECTaANSWER- Dysrhythmiaawithaaarapidafiringaofaanaectopicafocusawithaaarateaofa 140 - 200 aBPMabutanoaPawave Amiodaronea-aCORRECTaANSWER-WhatamedicationawouldabeagivenaforaV-tach? Adenosine,aInderalaoraEsmolola-aCORRECTaANSWER- Whataarea 3 adifferentamedicationsathatacouldabeagivenaforaSVT? Atropinea-aCORRECTaANSWER-Whatamedicationawouldabeagivenaforasymptomaticabradycardia? Airwayaobstructiona-aCORRECTaANSWER- Whataemergencyawouldaaacricothyrotomyatypicallyabeaperformed? ETT,aLMAaoraETAa(endotrachealatube,alaryngealamaskaairway,aesophagealatrachealaairway)a- aCORRECTaANSWER-Whatatypeaofaintubationaisapreferredawithaemesisaandaaspiration? Medicalainformationathatahelpsaoralasurgeonsaidentifyapoor- riskapatients,aguideatreatment,aandawrittenaevidenceatheapatientawasagivenatoaevaluateatheatreatme ntaplana-aCORRECTaANSWER- Whataareathea 3 abasicarequirementsatoafollowawhenagatheringamedicalainformation? Hematuriaa-aCORRECTaANSWER-Whataisatheatermaforabloodainatheaurine?
Pulmonaryaarterya-aCORRECTaANSWER-Whataisatheaarteryathatacarriesaoxygen- poora(venous)abloodafromatheaheartatoathealungs? Rightaatrium,arightaventricle,apulmonaryaartery,alungs,apulmonaryaveins,aleftaatrium,aleftaventricle,aao rtaa-aCORRECTaANSWER-Whataisatheabloodaflowathroughatheaheart? 100%aO2,aturnapatientatoatheirarightasideawithaheadadown,atonsilasuction,aintubatea- aCORRECTaANSWER-Whataisatheatreatmentaforaemesisawithaaspiration? Laryngospasma-aCORRECTaANSWER- Crowingasounds,alaboredabreathing,asuprasternalaretractiona&arockingaofatheachestaandaabdomena(p aradoxical)aareasignsaofawhat? 100%aO2,aheadatiltachinaposition,atonsilasuction,abag/mask,asuccinylcholinea-aCORRECTaANSWER- Treatmentaofaaalaryngospasm Tracheostomya-aCORRECTaANSWER- Surgicalaairwayabelowalevelaofalarynxaintoatheatracheaaisacalledawhat? Capnograph/capnometera-aCORRECTaANSWER- DeviceathatamonitorsaventilationainarealatimeabyameasuringathealevelaofaO2atheapatientaexhales Pulseaoximetera-aCORRECTaANSWER-Deviceathatamonitorsaventilationaandacirculation Bronchspasma-aCORRECTaANSWER- Difficultyawithaexpirationanotainspiration,awheezingaandalaboredabreathingaareasignsaofawhatamedicala emergency? 100%aO2,aAlbuterolainhaler,aepi,aETT/LMAaoraIgel,aandaaasteroida-aCORRECTaANSWER- aTreatmentaofabronchospasm MPa 1 a-aCORRECTaANSWER- WhataMPaclassificationaisavisualizationaofasoftapalate,afauces,auvula,aanterioraandaposteriorapillars? MPa 2 a-aCORRECTaANSWER- WhataMPaclassificationaisavisualizationaofasoftapalate,afaucesa&auvula? MPa 3 a-aCORRECTaANSWER- WhataMPaclassificationaisavisualizationaofasoftapalateaandabaseaofatongue? MPa 4 a-aCORRECTaANSWER-WhataMPaclassificationawouldatheasoftapalateanotabeavisibleaataall? Morphine,aoxygen,anitroglycerin,aaspirina-aCORRECTaANSWER-WhatadoesaMONAastandafor?
Basicamedicalainformation,aprocessaofaevaluatingatheapatienta&atheapatient'sapsychologicalast atusa-aCORRECTaANSWER-Medicalahistoryaisausedatoadocument?
SOB,aedema,aascitesa-aCORRECTaANSWER-CHFacanaresultainaallaofatheafollowing: 95 - 100%a-aCORRECTaANSWER-NormalabloodaO2asaturationainaanaASAa(class)aIapatientarangesafrom: Subjectatoapostoperativeainfectionsa-aCORRECTaANSWER- Diabeticapatientsaareaatariskaforaoralasurgeryabecauseatheyaare: 6 amonthsa-aCORRECTaANSWER- PatientawhoahasahadaaaMIashouldawaitahowalongabeforeahavingaelectiveasurgery? Grave'sadiseasea-aCORRECTaANSWER-Hyperthyroidismaisaalsoaconsidered? HepatitisaAa-aCORRECTaANSWER-Hepatitisacausedabyacontaminatedafoodaorawater HepatitisaBa-aCORRECTaANSWER- HepatitisamostafrequentlyainapatientsawhoahaveabeenaincarceratedaorawhoahaveabeenatreatedaforaSTD s HepatitisaCa-aCORRECTaANSWER-Hepatitisacausedabyacontaminatedaneedlesa(IVadrugause) Ascitesa-aCORRECTaANSWER-Whataisatheatermaforalargeafluidafilledaabdomen? Hepaticacomaa-aCORRECTaANSWER- ProlongedaCNSadepressionainaaapatientawithaliveradiseaseacanaresultainaaaconditionacalled? Liveradiseasea-aCORRECTaANSWER-Patientsawhoahave diseaseadon'tahaveatheaab ilityatoaproduceaclottingafactors INRa(internationalanormalizedaratio)a-aCORRECTaANSWER- Ratioaofahowalongaitatakesaaapatient'sabloodatoaclot Cirrhosisa-aCORRECTaANSWER- Liveradiseaseawithatheaformationaofafibrousatissueaandaisamostacommonlyacausedabyaalcoholismaisa calledawhat? Acutearenalafailurea-aCORRECTaANSWER- Suddenaonset,acan'tahaveaNSAIDS,acausedabyaheavyabloodaloss,adehydration,ainjury Chronicarenalafailurea-aCORRECTaANSWER- theaprogressivealossaofarenalafunctionaoveraaaperiodaofamonthsaorayears,ausuallyaonadialysis Hemodialysisa-aCORRECTaANSWER-
Aspirationaandarespiratoryaobstructiona-aCORRECTaANSWER- Patientsawhoahaveahadastrokesainatheapastaareamoreaproneatoa anda duringaanesthesia Periotonealadialysisa-aCORRECTaANSWER- Naturalamembraneainapatientsaabdomenaisausedaforadialysis,alessaefficientaandacarriedaoutaforaaalong eraperiodaofatime Anemica-aCORRECTaANSWER-Renalafailureapatientsatendatoabecome becausea theyacan'taproduceaadequateabloodacells Seizuresa-aCORRECTaANSWER-Transientadisturbanceaofacerebralafunctions Tonic-clonica(grandamal)aseizurea-aCORRECTaANSWER-Mostacommonatypeaofaseizure Prodromalaphase,aictalatonicaclonicaphase,apostaictalaphasea-aCORRECTaANSWER- 3 aphasesaofagrandamalaseizures Grandamalastatusa(statusaepilepticus)a-aCORRECTaANSWER-Seizurealastinga 5 aminutesaoralonger Petitamalaseizurea-aCORRECTaANSWER-2ndatypeaofaseizure Dilantinahyperplasiaa-aCORRECTaANSWER- Drugagivenatoaseizureapatientsathatacauseaswelling/inflammationaofagingivalatissues TIAastroke (transientaischemicaattack)a-aCORRECTaANSWER-Miniastroke-arecoveryawithina 24 ahours 2ndatrimestera-aCORRECTaANSWER-Bestatrimesteratoaperformaoralasurgeryain 1statrimestera-aCORRECTaANSWER-Whatatrimesterahasatheagreatestariskaforaoralasurgery? Obesitya-aCORRECTaANSWER-20%aaboveaidealabodyaweight Overwighta-aCORRECTaANSWER-BMIa 25 - 29 aisaconsidered Obesea-aCORRECTaANSWER-BMIaovera 30 aisaconsidered Morbidlyaobesea-aCORRECTaANSWER-BMIaovera 40 aisaconsidered Obstructiveasleepaapneaa(OSA)a-aCORRECTaANSWER- Cessationaofaairaflowaforamoreathana 10 aseconds
2 - 3 a-aCORRECTaANSWER-PatientsaINRaisaoften whenaonaCoumadin
Intramusculara(IM)a-aCORRECTaANSWER-Unpredictableaonsetaofadrugaeffectauponainjection Subcutaneousa(SQ)a-aCORRECTaANSWER-Beneathatheaskin-aemergencyauseaforaEpinephrine Byamoutha(PO)a-aCORRECTaANSWER-Delayedaonsetaofadrugaabsorption 1.7amLa/acarpulea-aCORRECTaANSWER- HowamuchaEpinephrineaisaina 1 acarpuleaofaLidocaineaforaaa1%asolution Minimalasedationa-aCORRECTaANSWER- Normalaresponseatoaverbalastimulationawithaairwayareflexes,aventilationa&acardiovascularafunctiona uneffecteda(Anxiolysis)a-aOralapreopameds Moderateasedationa-aCORRECTaANSWER- Responseatoaverbalalightatactileatouch,anoaairwayacompromisea("consciousasedation")a- aN2OaoraEMLA Deepasedationa-aCORRECTaANSWER- Cannotabeaeasilyaaroused,apurposefularesponseatoapainfulastimulation,aairwayaassistanceamayabea required,aventilationamayabeainadequate,acardiovascularafunctionaisausuallyamaintaineda(analgesi a) Vitals,aambulation,aN/V,apain,asurgicalableedinga-aCORRECTaANSWER- Whataareathea 5 athingsayouaevaluateaforamodifiedapost- anesthesiaadischargeascore?aTotalascoreaisa 10 a(Scoreaofa 9 aoragreateraisaconsideredafitaforadischarge) Local,alocalawithaN2OaoraIVasedation,aIVabalancedaanesthesiaaorainhalationaanesthesiaa- aCORRECTaANSWER-Whataareathea 4 acategoriesaofaanesthesia? 30%a-aCORRECTaANSWER-WhatapercentageaofaO2aisarequiredawhenaadministeringaN2O? 3 - 4 aminutesa-aCORRECTaANSWER-HowalongashouldayouaadministeraO2aafteraturningaoffatheaN2O 15 aminutesa-aCORRECTaANSWER- HowalongashouldayouakeepaaapatientainatheaofficeaafteratheyahaveabeenaonaN2O 8 ahoursa-aCORRECTaANSWER-HowalongaisaitarequiredatoabeaNPOaforaIVasedation? 15 - 20 amL/kga-aCORRECTaANSWER- WhataisathearecommendedafluidavolumeaadministrationathroughoutaanaIVasedation? Verseda-aCORRECTaANSWER-Whatadrugaisaforarelaxationa&aamnesia?
Fentanyla-aCORRECTaANSWER-Whatadrugaisaforaanalgesia? Inhalationaanestheticsa-aCORRECTaANSWER- anestheticsaareapotentialatri ggersaforamalignantahypothermia Propofola-aCORRECTaANSWER- Whatadrugaisausedaquiteaoftenadueatoaitsaantiemeticaeffects,aandadoesanotapredisposealaryngospasm s? 12 ahoursa-aCORRECTaANSWER- AfteraopeningaaavialaofaPropofol,ahowalongadoayouahaveabeforeaitaisanoalongeragoodatoause? Childrena-aCORRECTaANSWER- WhataageagrouparapidlyaredistributesaPropofolaandarequiresaaa50%aincreaseainadosage? Olderapatientsa-aCORRECTaANSWER- WhataageagroupahasaanaincreasedasensitivityatoaPropofolaandarequiresatheadosageatoabeareduced? Womena-aCORRECTaANSWER-WhatagenderarapidlyaredistributesaPropofolaandarequiresaaa 10 - 15%alargeradose? Leanabodyamassa-aCORRECTaANSWER- Foraobeseapatients,ahowashouldatheadosageaofaPropofolabeadetermined? Mildabradycardiaa-aCORRECTaANSWER- Whataisanoticedainatheafirsta 10 aminutesaofaadministeringaPropofol? Hypotensiona-aCORRECTaANSWER- Largeadoses,arapidaadministrationaandaadvancedaageacanacause whenaadminsteringaPropofol Propofola-aCORRECTaANSWER- Whatadrugainducesabronchodilationaandacanadecreaseatheaincidenceaofaintraoperativeawheezingainap atientsawithaasthmaa&aCOPD? Ketaminea10mga-aCORRECTaANSWER- Whatadrugacanayouagivea 30 asecondsabeforeagivingaPropofolatoareduceatheaincidenceaofapainaduringaPr opofolainfiltration? Catatonicastatea-aCORRECTaANSWER- Ketamineacausesaaapatientatoabeadissociatedafromasensoryainputsainahisaenvironmentawhichaisa called state?
Increasesasalivationa-aCORRECTaANSWER-OneadisadvantageaofaKetamineais? Livera-aCORRECTaANSWER-Whereaareabarbituratesadetoxified? Barbituratesa-aCORRECTaANSWER- Producesaamnesiaaandahypnoticaeffectsaalongawithasedativeaproperties.aThoughtatoamakeapatientsa moreasensitiveatoapain Hematomasa-aCORRECTaANSWER- Whataisamostafrequentlyaencounteredaduringainjectionainaposterioraaspectaofamaxillaainathea3rda molararegion? Estersa-aCORRECTaANSWER-Metabolizedainabloodstreamabyapseudocholinesterase Amidesa-aCORRECTaANSWER-Metabolizedainathealiver Cocainea&aProcainea-aCORRECTaANSWER- 2 atypesaofaEsters Lidocaine,amepivacaine,aprilocaine,abupivacaine,aarticainea-aCORRECTaANSWER- 5 atypesaofaAmides Vasonconstrictorsa-aCORRECTaANSWER-Dilateabloodavessels 10 - 11 acarpulesa-aCORRECTaANSWER-MaximumaamountaofaLidocaineaforaanaaverageapatient 7 - 8 acarpulesa-aCORRECTaANSWER-MaximumaamountaofaMepivacaineaforaanaadultapatient 6 acarpulesa-aCORRECTaANSWER-MaximumaamountaofaPrilocaineaforaaapatient 10 acarpulesa-aCORRECTaANSWER-MaximumaamountaofaBupivacaineaforaaapatient 7 acarpulesa-aCORRECTaANSWER-MaximumaamountaofaArticaineaforaaapatient InadverentainjectionaofaEpinephrinea-aCORRECTaANSWER- Thisatypeaofainjectionainaaavesselacanaleadatoatachycardia,ahypertensionaandasenseaofaheartapounding ainachest 20%aO2a-aCORRECTaANSWER-WhatapercentageaofaO2aisainaroomaair? 1 ahoura-aCORRECTaANSWER-HowalongaisatheacontactatimeaforaEMLAacreamatoabeasufficient? Capnographya-aCORRECTaANSWER-LevelaofaCO2aexpiredainaeachabreath- athisaisamandatoryawhenaanaETTaisabeingaused
Fentanyla-aCORRECTaANSWER- isa100Xamoreapotentathanamorphine
Cerebralacortex,acoreaofatheabrain,acerebellum,abrainstema-aCORRECTaANSWER- 4 apartsaofaCNS: CNSa-aCORRECTaANSWER- Overallacontrolacenteraofabodyaandaconsistsaofatheabrainaandaspinalacord Neuronsa-aCORRECTaANSWER- Cellsathataconductanerveaimpulsesainatheabrainaandadifferentabodyaparts PNSa-aCORRECTaANSWER- Portionaofatheanervousasystemaconsistingaofanervesaandagangliaa(groupsaofanerveacellabodies)aoutsid eatheabrainaandaspinalacord Cranialaandaspinalanervesa-aCORRECTaANSWER- 2 acomponentsaofaPNS: 12 a-aCORRECTaANSWER-Howamanyacranialanervesaareathere? Optic,aolfactorya&aauditorya-aCORRECTaANSWER-Whataareathea 3 adifferentasensoryanerves? Opticanervea-aCORRECTaANSWER-2ndacranialanerve Olfactoryanervea-aCORRECTaANSWER-1stacranialanerve Auditoryanervea-aCORRECTaANSWER-8thacranialanerve Facialanervea-aCORRECTaANSWER-7thacranialanerve Trigeminalanervea-aCORRECTaANSWER-5thacranialanerve Ophthalmic,amaxillarya&amandibulara-aCORRECTaANSWER- Whataareathea 3 adivisionsaofatheatrigeminalanerve? ANSa-aCORRECTaANSWER-Regulatesainternalaorgansa(viscera)aandaotherainvoluntarilyafunctions sympatheticaandaparasympathetica-aCORRECTaANSWER-Whataareathea 2 asubdivisionsaofaANS: Sympathetica-aCORRECTaANSWER-Fightaoraflight Parasympathetica-aCORRECTaANSWER-Couchapotatoa/arestaoradigest Sympathetica-aCORRECTaANSWER-Adrenergic,aAlphaavasoconstrictionaandaBetaabigaorgans
Strokeavolumea-aCORRECTaANSWER- Amountaofabloodapumpedabyaleftaventricleainaeachabeata(60amLaofablood) Cardiacaoutputa-aCORRECTaANSWER- Totalaamountaofabloodapumpedaoutaofaleftaventricleainaoneaminute StrokeavolumeaXaheartaratea-aCORRECTaANSWER-Formulaaforacardiacaoutput Cardiacacyclea-aCORRECTaANSWER- Oneacontractionaandarelaxationaofaatriaaandaventriclesafollowedabyaaashortapausea(60- 100 aBPM) Conductionasystema-aCORRECTaANSWER-Heartsanormalarateaandarhythm- aimpulseapassesathroughafibersaasaaawaveaofadepolarizationaandarepolarization Browna-aCORRECTaANSWER-Coloraofahelium: Blacka-aCORRECTaANSWER-Coloraofanitrogen: Yellowa-aCORRECTaANSWER-Coloraofacompressedaair: Graya-aCORRECTaANSWER-Coloraofacarbonadioxide: Bluea-aCORRECTaANSWER-Coloraofanitrousaoxide: Greena-aCORRECTaANSWER-Coloraofaoxygen: atriventriculara(AV)anodea-aCORRECTaANSWER-Cellsalocatedabetweenatheaatriumaandaventricles- atransmitsaelectricalaimpulsesathroughaBundleaofaHis Sinoatriala(SA)anodea-aCORRECTaANSWER-Pacemakeraofatheaheartawhereacardiacarhythmaoriginates- alocatedaatajunctionabetweenacoronaryasinusaandarightaatrium Oxygenaanalyzera&amonitora-aCORRECTaANSWER- DeviceaplacedaonaanainflowalimbaofaanaanestheticacircuitatoameasureatheaexactaamountaofaO2ainath eamixtureabeingadeliveredatoatheapatient.aIfalevelagetsabelowa20%,aalarmawillagoaoffaandaalertatheaa nesthesiaateam Vaporizera-aCORRECTaANSWER- Facilitatesatheaconversionaofaliquidaanestheticaagentsatoagasesasuitableaforadelivery. Ventilatora-aCORRECTaANSWER- Deviceathatabreathesaforatheapatientaandaisausedawithaaaclosedasystem