Kidney Failure, ChronicRenal InsufficiencyKidneyUrineKidney DiseasesKidney TransplantationAcute Kidney InjuryHeart FailureRenal DialysisRefeeding SyndromeKidney Function TestsGlomerular Filtration RatePodocytesCreatinineDiabetic NephropathiesRisk FactorsProteinuriaPolycystic Kidney, Autosomal DominantAlbuminuriaTreatment FailureTime FactorsNephrectomyKidney TubulesDisease ProgressionLipocalinsRenal Insufficiency, ChronicAlbertaTreatment OutcomeKidney CortexBiological MarkersPeritoneal DialysisRetrospective StudiesChronic DiseaseFollow-Up StudiesCohort StudiesDisease Models, AnimalRisk AssessmentHypertensionProspective StudiesProportional Hazards ModelsKidney GlomerulusUnited StatesCardiovascular DiseasesPolycystic Kidney DiseasesBlood PressureAntihypertensive AgentsKidney NeoplasmsSeverity of Illness IndexIncidencePrognosisKidney MedullaKidney Tubules, ProximalUrinalysisKidney CalculiFailure to ThriveLiver Failure, AcuteKidney Concentrating AbilityKidney Tubules, CollectingLiver FailureMultiple Organ FailureDogsUrine Specimen CollectionKidney Diseases, CysticKidney Tubules, DistalTissue DistributionRats, Sprague-DawleyNephronsEquipment FailureCardiac Output, LowSubstance Abuse DetectionDiuresisChromatography, High Pressure LiquidLiverHeart Failure, SystolicKidney Tubular Necrosis, AcuteRespiratory InsufficiencyBacteriuriaUreterGraft RejectionRNA, MessengerProsthesis FailureGraft SurvivalRenal CirculationRats, WistarMolecular Sequence DataTissue DonorsDiureticsCell LinePredictive Value of TestsHeart Failure, DiastolicReference ValuesHemodynamicsBlood Urea NitrogenUrinary Tract InfectionsMyocardiumSodiumKidneys, ArtificialUreteral ObstructionAngiotensin-Converting Enzyme InhibitorsAcute Disease