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Term Description

The urea reduction ratio (URR) is a measure of urea clearance during hemodialysis and is calculated based on pre- and post-hemodialysis measurements of blood urea. The URR is directly associated with survival for patients on chronic hemodialysis (a higher URR is associated with lower risk of mortality). Urea clearance is routinely recorded and used to monitor the adequacy of hemodialysis and to compare the quality of hemodialysis delivery across dialysis facilities. PMID: 10727547

Part Descriptions

LP14288-2   Urea
A compound formed in the liver from ammonia produced by the deamination of amino acids. It is the principal end product of protein catabolism and constitutes about one half of the total urinary solids. Source: National Library of Medicine, MeSH 2006

LP14288-2   Urea
Urea, also called carbamide, is an organic chemical compound involved in the metabolism of nitrogen-containing compounds and in the re-absorption of water and critical ions from excreted urine, an important mechanism in prevention of water loss and maintaining blood pressure. Urea levels are measured to diagnose conditions that affect the kidneys, such as acute kidney failure or end-stage renal disease (ESRD). The blood urea nitrogen (BUN) and the urine urea nitrogen (UUN) tests may be used to determine how well a patient's kidneys are functioning. Increased or decreased levels of urea may also suggest dehydration or increased protein intake. Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See http://creativecommons.org/licenses/by-sa/3.0/ for details. Source: Wikipedia, Urea (Wikipedia)

LOINC Names Get Info

Fully-Specified Name
Urea^post dialysis/pre dialysis:SRto:Pt:Ser/Plas:Qn:
Long Common Name
Urea [Molar ratio] in Serum or Plasma --post dialysis/pre dialysis
Short Name
Urea post/pre dialysis SerPl-sRto
Display Name
Urea post dialysis/pre dialysis [Molar ratio]
Consumer Name Alpha Get Info
Urea after Dialysis/pre Dialysis, Blood

Part Model Get Info

  • Component
    Urea^post dialysis/pre dialysis
    LP307232-1
    • Analyte
      Urea
      LP14288-2
      • Component Numerator
        Urea
        LP14288-2
        • Component Numerator Core
          Urea
          LP14288-2
        • Component Numerator Core Suffix
          NULL
           
      • Component Denominator
        NULL
         
        • Component Denominator Core
          NULL
           
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      post dialysis/pre dialysis
      LP145592-4
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    SRto
    LP6868-6
  • Time
    Pt
    LP6960-1
  • System
    Ser/Plas
    LP7576-4
    • System Core
      Ser/Plas
      LP7576-4
    • Super System
      NULL
       
  • Scale
    Qn
    LP7753-9
  • Method
    NULL
     

Basic Attributes

Class
CHAL
Type
Laboratory
First Released
Version 2.52
Last Updated
Version 2.52 (MIN)
Order vs. Observation
Both

Formula (Readable)

Urea reduction ratio = [1-(post-dialysis blood urea/pre-dialysis blood urea)]*100

Language Variants Get Info

TagLanguageTranslation
cs-CZCzech (Czechia)Urea^Po dialýze/před dialýzou:Látkový poměr:Časový bod:Sérum/plazma:Kvantitativní:
el-GRGreek (Greece)Ουρία^κατόπιν αιμοκάθαρσης/προ αιμοκάθαρσης:SRto:Pt:Ορός/Πλάσμα:Qn:
Synonyms: CHAL Pt Qn SRto κατόπιν αιμοκάθαρσης κατόπιν αιμοκάθαρσης/προ αιμοκάθαρσης Ορός Ορός/Πλάσμα Ουρία Πλάσμα προ αιμοκάθαρσης
es-ESSpanish (Spain)Urea^post diálisis /pre diálisis:Relacion de Sustancia:Punto temporal:Suero o Plasma:Qn:
Synonyms: Cuantitativo
es-MXSpanish (Mexico)Urea ^ posdiálisis / prediálisis:Proporción de sustancia:Punto temporal:Suero o Plasma:Cuantitativo:
fr-CAFrench (Canada)Urée^post dialyse/Pré dialyse:Ratio de substance:Temps ponctuel:Sérum/Plasma:Quantitatif:
fr-FRFrench (France)Urée^après dialyse/avant dialyse:Moles ratio:Ponctuel:Sérum/Plasma:Numérique:
it-ITItalian (Italy)Urea^post dialisi/pre dialisi:Srto:Pt:Siero/Plasma:Qn:
Synonyms: dopo dialisi dopo dialisi/prima di dialisi Plasma prima di dialisi Punto nel tempo (episodio) Rapporto di sostanza Siero Siero o Plasma Test di provocazione
nl-NLDutch (Netherlands)ureum^na dialyse/pre-dialyse:molaire verhouding:moment:serum of plasma:kwantitatief:
pl-PLPolish (Poland)Mocznik^po dializie/przed dializą:współczynnik molowy:punkt w czasie:surowica lub osocze:ilościowy:
Synonyms: po lub przed dializą
ru-RURussian (Russian Federation)Мочевина^после диализа/до диализа:МольОтн:ТчкВрм:Сыв/Плаз:Колич:
Synonyms: Количественный Мольная доля;Молярная доля;Отношение концентраций Плазма Сыворотка Сыворотка или Плазма Точка во времени;Момент
tr-TRTurkish (Turkey)Üre^diyaliz sonrası/diyaliz öncesi:SOrn:Zmlı:Ser/Plaz:Kant:
Synonyms: SubsOranı
zh-CNChinese (China)尿素^在透析之后/在透析之前:物质的量比率:时间点:血清/血浆:定量型:
Synonyms: CO(NH2)2;碳酰二胺;脲 XXX刺激 - 在...之前 XXX刺激 - 在...之后 之后于... 之后于透析/之前于透析 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 在...以后 在后 时刻;随机;随意;瞬间 渗析 渗析;肾脏透析;肾透析;血液透析;血透 物质的量比值;物质的量比;摩尔比;摩尔比率;摩尔比值 血清或血浆 血透 透析 透析之前;之前于透析;在透析（渗析、洗肾、透析法、血液透析）之前 透析之后;之后于透析;在透析（渗析、洗肾、透析法、血液透析）之后

Example Units

UnitSource
mmol/mmolExample UCUM Units

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=77010-7