Pulmonary Gas ExchangeVentilation-Perfusion RatioNoble GasesBlood Gas AnalysisOxygenPulmonary AlveoliCarbon DioxideArrhythmia, SinusPulmonary CirculationRespiratory MechanicsPulmonary VentilationPulmonary Diffusing CapacityPartial PressureRespiratory Dead SpaceRespirationRespiration, ArtificialOxygen ConsumptionTidal VolumeLungRespiratory Function TestsPulmonary EdemaGasesSmoke Inhalation InjuryRespiratory Distress Syndrome, AdultPhysical ExertionHyperventilationVentilationAnoxiaHepatopulmonary SyndromeCardiac OutputExercise TestHemodynamicsExtravascular Lung WaterPositive-Pressure RespirationLung DiseasesExerciseBicyclingHigh-Frequency VentilationVital CapacitySpirometryHeart RateLung Volume MeasurementsIntermittent Positive-Pressure VentilationDogsForced Expiratory VolumeRespiratory TransportLactic AcidLung ComplianceHigh-Frequency Jet VentilationTime FactorsVentilator WeaningInhalationVentilators, MechanicalNoninvasive VentilationNeonPulmonary SurfactantsAir PressureHeliumWork of BreathingHypercapniaVentilator-Induced Lung InjuryIntubation, IntratrachealWater Loss, InsensiblePlant TranspirationModels, BiologicalLung InjuryFluorocarbonsRespiratory Physiological PhenomenaAirway ResistanceAcute Lung InjuryLiquid VentilationRespiratory Distress Syndrome, Newborn