44734-2

Urea nitrogen/Creatinine [Mass Ratio] in Blood

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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. [Lab Tests Online:bun/tab/sample/] 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

Fully-Specified Name

Component: Urea nitrogen/Creatinine
Property: MRto
Time: Pt
System: Bld
Scale: Qn
Method

Additional Names

Short Name: BUN/Creat Bld
Display Name: Urea nitrogen/Creatinine (Bld) [Mass ratio]
Consumer Name Alpha Get Info: Urea Nitrogen (BUN)/Creatinine, Blood

Basic Attributes

Class: CHEM
Type: Laboratory
First Released: Version 2.17
Last Updated: Version 2.73
Order vs. Observation: Observation
Common Test Rank Get Info: 290

Member of these Panels

LOINC	Long Common Name
51990-0	Basic metabolic panel - Blood
54037-7	HEDIS 2009 panel
57820-3	HEDIS 2010 panel
60442-1	HEDIS 2011 panel
67767-4	HEDIS 2012 panel
72199-3	HEDIS 2013 panel
74234-6	HEDIS 2014 Value Sets

Member of these Groups Get Info

LOINC Group	Group Name
LG12083-8	Urea nitrogen/Creatinine\|MRto\|Pt\|ANYBldSerPl

Language Variants Get Info

Tag	Language	Translation
es-ES	Spanish (Spain)	Nitrógeno ureico/Creatinina:Relacion de Masa:Punto temporal:Sangre:Qn: Synonyms: Cuantitativo
es-MX	Spanish (Mexico)	Nitrógeno ureico / Creatinina:Relación de masa:Punto temporal:Sangre:Cuantitativo:
fr-CA	French (Canada)	Azote uréique/Créatinine:Ratio de masse:Temps ponctuel:Sang:Quantitatif:
fr-FR	French (France)	Azote uréique/créatinine:Masse ratio:Ponctuel:Sang:Numérique:
fr-BE	French (Belgium)	Azote uréique/Créatinine:Ratio de masse:Temps ponctuel:Sang:Quantitatif: Synonyms: BUN Rapport de masse
it-IT	Italian (Italy)	Azoto ureico/Creatinina:MRto:Pt:Sangue:Qn: Synonyms: Chimica Punto nel tempo (episodio) Rapporto di Massa Sangue
nl-NL	Dutch (Netherlands)	ureumstikstof/creatinine:massaverhouding:moment:bloed:kwantitatief: Synonyms: kreatinine
pl-PL	Polish (Poland)	Azot mocznika/kreatynina:współczynnik masowy:punkt w czasie:krew:ilościowy:
pt-BR	Portuguese (Brazil)	Uréia nitrogenada/Creatinina:MCrto:Pt:SgTotal:Qn: Synonyms: ; Urea Nit; UN; Blood urea nitrogen; N2; N; Creat; CR; mRto; Mass concentration ratio; Point in time; Random; WB; Whole blood; Quantitative; QNT; Quant; Quan; Chemistry; BUN
ru-RU	Russian (Russian Federation)	Азот мочевины крови/Креатинин:МассОтн:ТчкВрм:Кр:Колич: Synonyms: Количественный Кровь Масс отношение Точка во времени;Момент
tr-TR	Turkish (Turkey)	Üre azotu/Kreatinin:KütlOr:Zmlı:Kan:Kant: Synonyms: Nitrojen
zh-CN	Chinese (China)	尿素氮/肌酐:质量比率:时间点:全血:定量型: Synonyms: BUN 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;质量比肌酸内酰胺血;血液血尿素氮血液脲氮血脲氮

Example Units

Unit	Source
g/g{creat}	Example UCUM Units

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Copyright © 2024 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2024, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.