Blood Gas AnalysisCarbon DioxideGasesOxygenPartial PressurePulmonary Gas ExchangeHypercapniaBlood Gas Monitoring, TranscutaneousRespiratory InsufficiencyRespirationRespiratory Dead SpaceAcid-Base EquilibriumOximetryLung Diseases, ObstructiveBlood PressureRespiration, ArtificialRespiratory Function TestsAnoxiaAcid-Base ImbalanceArteriesIntermittent Positive-Pressure VentilationHypoventilationPositive-Pressure RespirationCapnographyAlmitrineHemodynamicsAcidosis, RespiratoryOxygen Inhalation TherapyRespiratory System AgentsVentilation-Perfusion RatioHypocapniaHeart RateLungObesity Hypoventilation SyndromeHepatopulmonary SyndromeTidal VolumePulmonary VentilationPulmonary Disease, Chronic ObstructiveRespiratory MechanicsMethemoglobinemiaAcidosisHydrogen-Ion ConcentrationRespiratory MusclesVital CapacityForced Expiratory VolumeOxygen ConsumptionMonitoring, PhysiologicSpirometryProspective StudiesRegional Blood FlowAltitudeCardiac OutputArterial PressureAnesthesiaMethohexitalPulmonary CirculationCerebrovascular CirculationLung Volume MeasurementsHyperventilationLung ComplianceNoninvasive VentilationAnesthesia, GeneralTime FactorsDogsIntubation, IntratrachealDyspneaWork of BreathingProtriptylineMedetomidineBicarbonatesNoble GasesVentilator WeaningSheepAcute DiseaseDroperidolChromatography, GasNeuromuscular DiseasesVascular ResistanceVeinsGas Chromatography-Mass SpectrometryBlood Flow VelocityBlood Specimen CollectionHyperoxiaPulmonary Diffusing CapacityPulmonary EmbolismHematocritAcidosis, LacticAnesthesia, IntravenousRespiratory Distress Syndrome, AdultMasksInhalationPulmonary Heart DiseaseIsofluraneAnesthesia, InhalationPulmonary EdemaSleep Apnea SyndromesIntensive CareThoracotomyPulmonary AtelectasisLung Diseases