HematocritBlood VolumePlasma VolumeHemodilutionBlood ViscosityErythrocyte VolumeHemoglobinsErythrocyte CountErythropoietinAnemiaBlood Volume DeterminationPolycythemiaStroke VolumeLung Volume MeasurementsExchange Transfusion, Whole BloodErythrocyte IndicesPlasma SubstitutesErythrocytesBloodlettingHematologic TestsHemoglobinometryBlood PressureBlood Cell CountTime FactorsOrgan SizeErythrocyte AggregationIronOxygenMagnetic Resonance ImagingIsotonic SolutionsBlood Chemical AnalysisHemodynamicsErythrocyte TransfusionReticulocyte CountForced Expiratory VolumeBlood TransfusionRenal DialysisErythropoiesisReference ValuesHemorheologyHydroxyethyl Starch DerivativesPhlebotomyDehydrationBody WeightCardiac OutputBlood Flow VelocityProspective StudiesReproducibility of ResultsSerum AlbuminBlood ProteinsErythrocyte DeformabilityCerebrovascular CirculationAltitudeImaging, Three-DimensionalPlatelet CountOsmolar ConcentrationDogsKidney Failure, ChronicCapillariesFluid ShiftsBrainFluid TherapyAnemia, NeonatalWater-Electrolyte BalanceResidual VolumeRegional Blood FlowMicrocirculationOxygen ConsumptionBlood SubstitutesTreatment OutcomeRheologyKidneyBlood Transfusion, AutologousAnemia, HypochromicRetrospective StudiesBlood Loss, SurgicalImage Processing, Computer-AssistedBlood Gas AnalysisFerritinsRegression AnalysisPolycythemia VeraAnalysis of VariancePartial PressureHypovolemiaPregnancyBlood Specimen CollectionSaline Solution, HypertonicSodium ChlorideDisease Models, AnimalEaglesRats, Sprague-DawleyRespirationSodiumCell SizeHemodiafiltrationPredictive Value of TestsLeukocyte CountCarbon DioxideHeart RateTomography, X-Ray Computed