AlbuminsSerum AlbuminUrinalysisUrine Specimen CollectionUrineSubstance Abuse DetectionPregnancy TestsDiagnostic Techniques, UrologicalAbortion, ThreatenedReagent StripsEnzyme Multiplied Immunoassay TechniqueBarbituratesBuprenorphineMethadoneSerum Albumin, BovineTrace ElementsOpioid-Related DisordersOpiate Substitution TreatmentNarcoticsGas Chromatography-Mass SpectrometryReagent Kits, DiagnosticSensitivity and SpecificitySerum Albumin, Radio-IodinatedReceptors, AlbuminAlbuminuriaTechnetium Tc 99m Aggregated AlbuminHypoalbuminemiaChromatography, High Pressure LiquidCreatinine2S Albumins, PlantKidneyTime FactorsBlood ProteinsProteinuriaBiological MarkersLiverBacteriuriaSpectrophotometry, AtomicZincCopperCattleSpecimen HandlingBilirubinHydrogen-Ion ConcentrationKineticsBromcresol GreenReference ValuesProtein BindingMass SpectrometryDiuresisCapillary PermeabilityRabbitsNephelometry and TurbidimetryChromatography, GasGlomerular Filtration RateGlucuronatesMaple Syrup Urine DiseaseImmunoassayDiabetic NephropathiesSpecific GravityDialysisUreaBlood Protein ElectrophoresisUrinary Tract InfectionsIndicators and ReagentsCalibrationPlasma Volumealpha-FetoproteinsOsmolar ConcentrationKidney DiseasesKidney Concentrating AbilitySeleniumRats, Sprague-DawleyHalf-LifeRats, Inbred StrainsKidney Failure, ChronicChromatography, LiquidRadioimmunoassayBody FluidsMolecular Sequence DataForensic MedicineTissue DistributionPlasma SubstitutesRenal DialysisBlood Chemical AnalysisConditioning, ClassicalUltrafiltrationMetabolic Clearance RateFecesMethodsKidney GlomerulusElectrophoresis, Polyacrylamide GelEnvironmental MonitoringAbsorptionTransferrinUrinationNutritional StatusAdministration, OralAdsorptionEnzyme-Linked Immunosorbent Assay