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Part Descriptions

LP14492-0   Urea nitrogen
Urea nitrogen is the waste product formed in the liver when proteins are broken down into their respective amino acids. Once proteins are metabolized in the liver, urea nitrogen is released from the liver to the kidneys via the bloodstream. The kidneys then filter the urea nitrogen out of the bloodstream into the urine. Although the kidneys filter out most of the urea nitrogen in the blood, small traces of stable urea nitrogen remain in circulation. To evaluate kidney function, a blood urea nitrogen test (BUN test) is conducted. High amounts of urea nitrogen in the BUN test indicate complications with kidney function or decreased blood flow to the kidneys. A decrease in urea nitrogen in the BUN test is indicative of severe liver disease or malnutrition. Source: Regenstrief LOINC

LP32035-5   Creatinine
Creatinine or creatine anhydride, is a breakdown product of creatine phosphate in muscle. The loss of water molecule from creatine results in the formation of creatinine. It is transferred to the kidneys by blood plasma, whereupon it is eliminated by glomular filtration and partial tubular excretion. Creatinine is usually produced at a fairly constant rate and measuring its serum level is a simple test. A rise in blood creatinine levels is observed only with marked damage to functioning nephrons; therefore this test is not suitable for detecting early kidney disease. Creatine and creatinine are metabolized in the kidneys, muscle, liver and pancreas. Copyright Copyright ©2005-2009 Genome Alberta (Reference to original publication: Wishart DS, Knox C, Guo AC, et al. HMDB: a knowledgebase for the human metabolome. Nucleic Acids Res. 2009 37(Database issue):D603-610.) Source: Human Metabolome Database, Creatinine

LOINC Names Get Info

Fully-Specified Name
Urea nitrogen/Creatinine:MRto:Pt:Urine:Qn:
Long Common Name
Urea nitrogen/Creatinine [Mass Ratio] in Urine
Short Name
UUN/Creat Ur
Display Name
Urea nitrogen/Creatinine (U) [Mass ratio]
Consumer Name Alpha Get Info
Urea Nitrogen (BUN)/Creatinine, Urine

Part Model Get Info

  • Component
    Urea nitrogen/Creatinine
    LP287338-0
    • Analyte
      Urea nitrogen/Creatinine
      LP287338-0
      • Component Numerator
        Urea nitrogen
        LP14492-0
        • Component Numerator Core
          Urea nitrogen
          LP14492-0
        • Component Numerator Core Suffix
          NULL
           
      • Component Denominator
        Creatinine
        LP32035-5
        • Component Denominator Core
          Creatinine
          LP32035-5
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      NULL
       
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    MRto
    LP6834-8
  • Time
    Pt
    LP6960-1
  • System
    Urine
    LP7681-2
    • System Core
      Urine
      LP7681-2
    • Super System
      NULL
       
  • Scale
    Qn
    LP7753-9
  • Method
    NULL
     

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 2.17
Last Updated
Version 2.42 (MIN)
Order vs. Observation
Both

Member of these Groups Get Info

LOINC GroupGroup Name
LG34808-2Urea nitrogen/Creatinine|MRto|Urine

Language Variants Get Info

TagLanguageTranslation
cs-CZCzech (Czechia)Dusík močoviny/kreatinin:Hmotnostní poměr:Časový bod:Moč:Kvantitativní:
el-GRGreek (Greece)Άζωτο ουρίας/Κρεατινίνη:MRto:Pt:Ούρα:Qn:
Synonyms: CHEM MRto Pt Qn Άζωτο Άζωτο ουρίας Κρεατινίνη Ούρα Ουρία
es-ESSpanish (Spain)Nitrógeno ureico/Creatinina:Relacion de Masa:Punto temporal:Orina:Qn:
Synonyms: Cuantitativo
es-MXSpanish (Mexico)Nitrógeno ureico / Creatinina:Relación de masa:Punto temporal:Orina:Cuantitativo:
fr-CAFrench (Canada)Azote uréique/Créatinine:Ratio de masse:Temps ponctuel:Urine:Quantitatif:
fr-FRFrench (France)Azote uréique/créatinine:Masse ratio:Ponctuel:Urine:Numérique:
fr-BEFrench (Belgium)Azote uréique/Créatinine:Ratio de masse:Temps ponctuel:Urine:Quantitatif:
Synonyms: BUN Rapport de masse
it-ITItalian (Italy)Azoto ureico/Creatinina:MRto:Pt:Urine:Qn:
Synonyms: Chimica Punto nel tempo (episodio) Rapporto di Massa
nl-NLDutch (Netherlands)ureumstikstof/creatinine:massaverhouding:moment:urine:kwantitatief:
Synonyms: kreatinine
pl-PLPolish (Poland)Azot mocznika/kreatynina:współczynnik masowy:punkt w czasie:mocz:ilościowy:
pt-BRPortuguese (Brazil)Uréia nitrogenada/Creatinina:MCrto:Pt:Urina:Qn:
Synonyms: ; Urea Nit; UN; Blood urea nitrogen; N2; N; Creat; CR; mRto; Mass concentration ratio; Point in time; Random; UR; Urn; UA; Quantitative; QNT; Quant; Quan; Chemistry; UCr; UUN
ru-RURussian (Russian Federation)Азот мочевины крови/Креатинин:МассОтн:ТчкВрм:Моча:Колич:
Synonyms: Количественный Масс отношение Точка во времени;Момент
tr-TRTurkish (Turkey)Üre azotu/Kreatinin:KütlOr:Zmlı:İdrar:Kant:
Synonyms: Nitrojen
zh-CNChinese (China)尿素氮/肌酐:质量比率:时间点:尿液:定量型:
Synonyms: BUN;UN;血尿素氮;血尿素氮（Blood urea nitrogen，BUN，尿素氮）;血液尿素氮 CO(NH2)2;碳酰二胺;脲 CR;Creat;肌氨酸酐;肌酸内酰胺;肌酸酐 N;N2;Nit;氮气 UCr UUN 化学;化学检验项目;化学检验项目类;化学类;化学试验;非刺激耐受型化学检验项目;非刺激耐受型化学检验项目类;非刺激耐受型化学试验;非刺激耐受型化学试验类 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 尿;小便;下泉 尿尿素氮 尿液尿素氮（Urine Urea nitrogen，UUN） 尿液肌酐 尿液肌酸酐 尿液脲氮 尿肌酸酐 尿脲氮 时刻;随机;随意;瞬间 来自于同一体系的两种分析物的质量之比;质量比 肌酸内酰胺

Example Units

UnitSource
g/g{creat}Example UCUM Units

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

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=44416-6