Blood Gas AnalysisPotassiumCarbon DioxideOxygenAcid-Base ImbalanceGasesPartial PressureCapnographyPulmonary Gas ExchangeBlood Gas Monitoring, TranscutaneousOximetryPotassium ChannelsRespiratory InsufficiencyHepatopulmonary SyndromeRespiratory Dead SpaceRespirationRespiratory Function TestsHypoventilationBlood Specimen CollectionAcid-Base EquilibriumMethemoglobinemiaVentilation-Perfusion RatioOxygen ConsumptionHypercapniaAnoxiaOxyhemoglobinsHydrogen-Ion ConcentrationRespiration, ArtificialOxygen Inhalation TherapyLungAnesthesia, GeneralPulmonary EmbolismBicarbonatesRadiography, ThoracicExercise TestLung DiseasesProspective StudiesSpirometryHemodynamicsPulmonary Disease, Chronic ObstructivePositive-Pressure RespirationPotassium Channel BlockersPotassium Channels, Inwardly RectifyingArteriesVital CapacityPotassium, DietaryForced Expiratory VolumePotassium DeficiencyPotassium Channels, Voltage-GatedPotassium CompoundsHeart RateAcute DiseaseTime FactorsBlood PressureObesity Hypoventilation SyndromeSyringesPotassium IsotopesSwinePotassium ChlorideLung Diseases, ObstructiveRetrospective StudiesChromatography, GasPoint-of-Care SystemsPulmonary VentilationTreatment OutcomeShaker Superfamily of Potassium ChannelsGas Chromatography-Mass SpectrometryNoble GasesPredictive Value of TestsKv1.3 Potassium ChannelDisease Models, AnimalCardiac OutputExercise ToleranceSodiumMonitoring, PhysiologicIntensive CarePotassium IodidePotassium RadioisotopesMembrane PotentialsKv1.2 Potassium ChannelShaw Potassium ChannelsBreath TestsKCNQ1 Potassium ChannelHypokalemiaPotassium Channels, Calcium-ActivatedDyspneaPotassium CitrateEther-A-Go-Go Potassium ChannelsLactic AcidPotassium Channels, Tandem Pore DomainElectrolytesRespiratory Distress Syndrome, AdultGas PoisoningKCNQ Potassium Channels