Pulmonary Diffusing CapacityBlood VolumeCapillariesBlood-Air BarrierPulmonary CirculationCarbon MonoxidePulmonary Gas ExchangePulmonary AlveoliLung Volume MeasurementsLungBlood Specimen CollectionElectrophoresis, CapillaryPaperMicrocirculationRegional Blood FlowBlood Flow VelocityVeinsHeelHemoglobinometryLaser-Doppler FlowmetryCapillary PermeabilityPlasma VolumeHypovolemiaHematocritBlood Chemical AnalysisErythrocyte VolumeRetinal VesselsOxygenCapillary ActionCerebrovascular CirculationFingersReproducibility of ResultsNailsHemoglobinsHemodynamicsBlood GlucoseBlood PressureBlood Glucose Self-MonitoringPoint-of-Care SystemsBlood Circulation TimeOxygen ConsumptionCarbon DioxideTime FactorsBlood Gas AnalysisParaguayPlasma Substitutes3-Hydroxybutyric AcidMicrochemistryHemangioma, CapillaryCapillary ResistanceNeonMagnetic Resonance ImagingSensitivity and SpecificityPhlebotomyDogsReference ValuesFiltrationDiabetic KetoacidosisStroke VolumeInsulin Infusion SystemsErythrocytesMethodsCapillary ElectrochromatographyCardiac OutputFluid ShiftsBrainPlasmaMacula LuteaPhysical ExertionHemodilutionSpecimen HandlingBlood CirculationCapillary Leak SyndromeDiabetes MellitusHemorrhageDye Dilution TechniqueContrast MediaSkinRespirationMicrospheresMuscle, SkeletalIsotonic SolutionsModels, BiologicalRestShock, HemorrhagicExerciseFluorescein AngiographyRespiratory Function TestsSpectroscopy, Near-InfraredHydroxyethyl Starch DerivativesImage Processing, Computer-AssistedDiabetes Mellitus, Type 1Infant, NewbornPerfusion ImagingProspective StudiesIndocyanine GreenVascular ResistanceMass ScreeningHypoglycemiaBreath Tests