questions and answers updated 2026
HyperbaricAOxygenATherapyA(HBOT)AhasAbeenAusedAforA-
AAnswerAdecompressionAsicknessAforAmanyAyears
HowAlongAareAtheAtreatmentAsessionsA-AAnswerA30-120Aminutes
InhalingAwhatApercentAofAoxygenAinAwhatAtypeAofAchamberAthatAisAhigherAthanAnormalAat
mosphereA-
AAnswerAInhalingA100%AoxygenAinApressurizedAchamberAthatAisAhigherAthanAnormalAat
mosphere
NormalAairApressureA-AAnswerA1Aatmosphere
HBOTAisAdefinedAinA-AAnswerAatmosphereAofAairApressureAabsoluteA(ATA).
TheAtypicalAparameterAusedAinAHBOTAisA-AAnswerA2A-
A3AATAA(≈A33AtoA100Aft.Aunderwater)AforA30A-A120Aminutes
InundatingAbodyAwithAoxygenAresultsAinA-AAnswerAhyper-
oxygenationA(increasedAdissolvedAoxygenAinAtheAblood).
hyper-oxygenationA-AAnswerA•AProvidesAinjuredAtissuesAwithAreadilyAavailableAO2
•A↓Aischemia,A↑AcollagenAproduction
•APreventsAinfectionAbyAanaerobicAmicroorganisms
VasoconstrictionAresultsAinA-AAnswerA↓Aedema
HBOTAalsoAapprovedAforA-
AAnswerAgasAembolism,ACOApoisoning,ArefractoryAosteomyelitis,AdelayedAradiationAinjury,
AcompromisedAskinAgrafts/flaps,AthermalAburns,AgasAgangrene,AandAwoundAhealing
, whatAotherAconditionsAwereAinvestigatedAforAHBOTAuseAbutAwithoutAsuccess?A-
AAnswerACerebralApalsyAandAmultipleAsclerosis
UsesAofAHyperbaricAOxygenATherapyA-AAnswerA•ASevereAanemia
•ACarbonAmonoxideApoisoning
•AInjuryAfromAcrushing
•AGasAgangrene,AaAformAofAgangreneAinAwhichAgasAcollectsAinAtissues
•ADecompressionAsickness
•ASelectAwoundAhealing
•ABrainAabscesses
•ASkinAgraftsAandAflaps
•AThermalAburns
•ACentralAretinalAarteryAocclusion
•AInfectionAinAaAbone,AcalledAosteomyelitis
•ADelayedAradiationAinjury
•AFlesh-eatingAdisease,AcalledAnecrotizingAbacterialAsoftAtissueAinfections
•AAirAorAgasAbubbleAtrappedAinAaAbloodAvessel;AthisAisAknownAasAanAairAorAgasAembolis
m
•AConditionsAthatAcauseAinsufficientAoxygenAlevelsAtoAreachAtheAbody'sAtissues
•ASkinAinfectionsAthatAareAcausingAtissueAtoAdie
GasAEmbolismAisA-AAnswerAOneAorAmoreAgasA(air)AbubblesAinAtheAvascularAsystem
ThisAoccursAinAscubaAdiversA-AAnswerAGasAEmbolism
GasAEmbolismAmayAoccurAduringA-
AAnswerA•ASurgery,Ainjections,AorAIVAlineA&AisAwhyAheadAisAtiltedAdownAwhenAremovin
gAcentralAlines
•AMayAbeAarterialAorAvenous,AbutAarterialAisAmoreAserious
WhoAisAatAriskAcorACOApoisoning?A-
AAnswerAEveryoneAisAatArisk?ATheAold,AveryAyoung,AandAtheAillAareAtheAmostAatArisk.