Carbon DioxideBlood Gas AnalysisPartial PressureOxygenBlood Gas Monitoring, TranscutaneousHypercapniaPulmonary Gas ExchangeRespirationHypoventilationRespiratory InsufficiencyCarbonRespiratory Dead SpaceLung Diseases, ObstructiveOximetryAcid-Base EquilibriumAcid-Base ImbalanceGasesCapnographyAcidosis, RespiratoryRespiratory Function TestsRespiration, ArtificialTidal VolumeAnoxiaPositive-Pressure RespirationOxygen ConsumptionBicarbonatesHydrogen-Ion ConcentrationOxygen Inhalation TherapyAlkalosis, RespiratoryIntermittent Positive-Pressure VentilationRespiratory MechanicsHyperventilationPulmonary VentilationAnesthesia, GeneralHemodynamicsPulmonary Heart DiseaseCerebrovascular CirculationLungBlood Specimen CollectionHypocapniaArteriesAlmitrineHepatopulmonary SyndromeEmbolism, AirRespiratory MusclesVentilation-Perfusion RatioVital CapacityProspective StudiesPulmonary Disease, Chronic ObstructiveBlood PressureMonitoring, PhysiologicLung Volume MeasurementsForced Expiratory VolumeNitrogen DioxideApneaAnesthesia, InhalationMethemoglobinemiaTime FactorsMedroxyprogesteroneOxyhemoglobinsCardiac OutputHeart RateCarbon MonoxideNeuromuscular DiseasesAcidosisChemoreceptor CellsNitrous OxideVentilators, Negative-PressureDogsWork of BreathingAcute DiseaseInsufflationExercise TestSleep Apnea SyndromesSwineSulfur DioxideDyspneaBlood Flow VelocitySpirometryPressurePulmonary EmbolismLung DiseasesNanotubes, CarbonRegional Blood FlowVeinsRadiography, ThoracicAtmosphereInfant, NewbornCardiopulmonary BypassTreatment OutcomeCarbon IsotopesCatsPolysomnographyObesity Hypoventilation SyndromeSleepChromatography, Supercritical FluidPneumoperitoneum, ArtificialBreath TestsChromatography, GasBrain