Kidney Function TestsKidneyGlomerular Filtration RateCreatinineKidney DiseasesRenal InsufficiencyKidney Failure, ChronicAcute Kidney InjuryProteinuriaRenal CirculationRenal Artery ObstructionRadioisotope RenographyKidney TransplantationTechnetium Tc 99m MertiatideCystatin CNephrectomyBlood Urea NitrogenRenal Insufficiency, ChronicRenal ArteryBlood PressureDiuresisRenal Plasma Flow, EffectiveKidney TubulesRenal DialysisTechnetium Tc 99m PentetateTime FactorsAlbuminuriaAnuriaDiabetic NephropathiesCardio-Renal SyndromeRetrospective StudiesTreatment OutcomePeritoneal DialysisImmunosuppressive AgentsBiological MarkersProspective StudiesMetabolic Clearance RateRenal Plasma FlowHypertension, RenalFollow-Up StudiesHydronephrosisUreaNatriuresisGlomerulonephritisKidney GlomerulusHypertension, RenovascularCystatinsCyclosporineIothalamic AcidNephritis, InterstitialGlomerulonephritis, IGAHypertensionInulinRisk FactorsDiureticsIodohippuric AcidUreteral ObstructionFurosemideAngiotensin-Converting Enzyme InhibitorsHalf-LifeGraft RejectionUremiaKidney Tubular Necrosis, AcuteDisease Progressionp-Aminohippuric AcidReninUrineSodiumMycophenolic AcidPeritoneal Dialysis, Continuous AmbulatoryUric AcidChronic DiseaseIohexolTacrolimusGlomerulonephritis, MembranousNephritisPrognosisNephrotic SyndromeNephronsHeart FailureGlomerulosclerosis, Focal SegmentalAcetylglucosaminidaseReperfusion InjuryElectrolytesHemodynamicsEnalaprilWater-Electrolyte BalanceAntihypertensive AgentsCreatinePredictive Value of TestsRenin-Angiotensin SystemPolycystic Kidney, Autosomal DominantBiopsyRenal Replacement TherapyHepatorenal SyndromeKidney Concentrating AbilityRats, Sprague-DawleyCohort StudiesHematuriaOliguria