Pulmonary Gas ExchangeVentilation-Perfusion RatioNoble GasesBlood Gas AnalysisOxygenCarbon DioxideArrhythmia, SinusPulmonary CirculationRespiratory MechanicsPulmonary VentilationPulmonary Diffusing CapacityPartial PressureRespiratory Dead SpaceRespirationRespiration, ArtificialOxygen ConsumptionTidal VolumeHypertensionLungRespiratory Function TestsGasesPulmonary EdemaSmoke Inhalation InjuryHypertension, PulmonaryPhysical ExertionHyperventilationAnoxiaRespiratory Distress Syndrome, AdultHemodynamicsVentilationHepatopulmonary SyndromeCardiac OutputExercise TestExtravascular Lung WaterExercisePositive-Pressure RespirationPulmonary AlveoliLung DiseasesHeart RateBicyclingHigh-Frequency VentilationVital CapacitySpirometryBlood PressureIntermittent Positive-Pressure VentilationDogsForced Expiratory VolumeLung Volume MeasurementsRespiratory TransportTime FactorsHypertension, RenalLactic AcidHypertension, PortalHigh-Frequency Jet VentilationInhalationVentilator WeaningVentilators, MechanicalNoninvasive VentilationHypertension, RenovascularAntihypertensive AgentsNeonLung ComplianceWork of BreathingHypertension, MalignantHypercapniaHeliumIntubation, IntratrachealWater Loss, InsensiblePlant TranspirationAir PressureRespiratory Physiological PhenomenaPulmonary ArteryModels, BiologicalVentilator-Induced Lung InjuryFluorocarbonsLiquid VentilationLung InjuryProspective StudiesRisk Factors