Pulmonary Gas ExchangeVentilation-Perfusion RatioNoble GasesBlood Gas AnalysisLungOxygenCarbon DioxideArrhythmia, SinusPulmonary CirculationRespiratory MechanicsPulmonary VentilationPulmonary Diffusing CapacityPartial PressureRespiratory Dead SpaceRespirationRespiration, ArtificialOxygen ConsumptionTidal VolumeRespiratory Function TestsGasesPulmonary EdemaSmoke Inhalation InjuryLung DiseasesPhysical ExertionRespiratory Distress Syndrome, AdultHyperventilationVentilationAnoxiaExtravascular Lung WaterHepatopulmonary SyndromeCardiac OutputHemodynamicsExercise TestPulmonary AlveoliPositive-Pressure RespirationExerciseBicyclingVital CapacityHigh-Frequency VentilationSpirometryLung Volume MeasurementsHeart RateIntermittent Positive-Pressure VentilationForced Expiratory VolumeDogsRespiratory TransportLactic AcidLung InjuryHigh-Frequency Jet VentilationInhalationVentilators, MechanicalVentilator WeaningTime FactorsNoninvasive VentilationLung NeoplasmsAcute Lung InjuryNeonLung ComplianceWork of BreathingHeliumVentilator-Induced Lung InjuryHypercapniaIntubation, IntratrachealAir PressureLung TransplantationWater Loss, InsensiblePlant TranspirationRespiratory Physiological PhenomenaModels, BiologicalFluorocarbonsLiquid VentilationCarcinoma, Non-Small-Cell LungLung Diseases, ObstructiveRespiratory Distress Syndrome, NewbornPulmonary SurfactantsVentilators, Negative-Pressure