Edetic AcidVeinsBlood Specimen CollectionBlood Gas AnalysisCerebral VeinsOxygenRegional Blood FlowCarbon DioxidePartial PressureDogsBlood Flow VelocityOxygen ConsumptionPortal VeinHydrogen-Ion ConcentrationLiver CirculationTime FactorsPhlebotomyJugular VeinsChelating AgentsAcid-Base EquilibriumHemoglobinsBlood Physiological ProcessesArteriesHepatic VeinsHemoglobinometryFemoral VeinLactic AcidPregnancyLactatesBloodAlkalosisFetal BloodPhysical ExertionSuperior Sagittal SinusBlood CirculationSheepHemodynamicsSpermatic CordHematocritSwineBlood GlucoseMesenteric VeinsCardiac OutputBlood Chemical AnalysisAcidosisSodium BicarbonateAcid-Base ImbalanceExerciseKineticsOximetryCerebrovascular CirculationSplanchnic CirculationBlood PressurePulmonary CirculationBlood VolumeVena Cava, InferiorReproducibility of ResultsBicarbonatesUltrasonography, DopplerReference ValuesBiological MarkersAzygos VeinCross-Over StudiesPlasmaCations, DivalentAnesthesiaCapillariesPerfusionSpecimen HandlingForearmUmbilical ArteriesPulmonary VeinsHorsesSensitivity and SpecificityPhysical EnduranceLiverHepatic ArteryErythrocytesHeart RateInfant, NewbornRoot Canal IrrigantsUmbilical VeinsPulmonary Gas ExchangeLeadLegMaternal-Fetal ExchangeNeoplastic Cells, CirculatingFerrous CompoundsOxyhemoglobinsProspective StudiesTourniquetsUltrasonography, PrenatalAnalysis of VarianceCase-Control StudiesMuscle, SkeletalMagnesiumPregnancy Trimester, ThirdApgar ScoreOvaryZinc