LOINC
Version 2.66

3097-3Urea nitrogen/Creatinine [Mass Ratio] in Serum or PlasmaActive

Component
Urea nitrogen/Creatinine
Property
MRto
Time
Pt
System
Ser/Plas
Scale
Qn
Method

Additional Names

Short Name
BUN/Creat SerPl
Display Name Beta
Urea nitrogen/Creatinine [Mass ratio]
Consumer Name Alpha
Urea Nitrogen (BUN)/Creatinine, Blood

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

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 1.0
Last Updated
Version 2.66
Order vs. Observation
Both
Common US Lab Results Rank
55
Common SI Lab Results Rank
55
CDISC Lab Test
Yes

Reference Information

Type Source Reference
Webcontent Lab Tests Online®Copyright Copyright 2001-2019 American Association for Clinical Chemistry. Blood Urea Nitrogen (BUN)

Member of these Panels

LOINC Long Common Name
24320-4 Basic metabolic 1998 panel - Serum or Plasma
24321-2 Basic metabolic 2000 panel - Serum or Plasma
70219-1 Basic metabolic 2008 panel with ionized calcium - Serum or Plasma
89044-2 Basic metabolic and albumin panel - Serum or Plasma
24322-0 Comprehensive metabolic 1998 panel - Serum or Plasma
24323-8 Comprehensive metabolic 2000 panel - Serum or Plasma
24362-6 Renal function 2000 panel - Serum or Plasma

Member of these Groups

LG12083-8 Urea nitrogen/Creatinine|MRto|Pt|ANYBldSerPl

Language Variants Get Info

zh-CNChinese (China)
尿素氮/肌酐:质量比率:时间点:血清/血浆:定量型:
nl-NLDutch (Netherlands)
ureumstikstof/creatinine:massaverhouding:moment:serum of plasma:kwantitatief:
fr-BEFrench (Belgium)
Azote uréique/Créatinine:Ratio de masse:Temps ponctuel:Sérum/Plasma:Quantitatif:
fr-CAFrench (Canada)
Azote uréique/Créatinine:Ratio de masse:Temps ponctuel:Sérum/Plasma:Quantitatif:
fr-FRFrench (France)
Urea nitrogen/Creatinine:MRto:Pt:Ser/Plas:Qn:
it-ITItalian (Italy)
Azoto ureico/Creatinina:MRto:Pt:Siero/Plasma:Qn:
ko-KRKorean (Korea, Republic of)
요소 질소/크레아티닌:질량농도비:검사시점:혈청/혈장:정량:
pt-BRPortuguese (Brazil)
Uréia nitrogenada/Creatinina:MCrto:Pt:Sor/Plas:Qn:
ru-RURussian (Russian Federation)
Азот мочевины крови/Креатинин:МассОтн:ТчкВрм:Сыв/Плаз:Колич:
es-ARSpanish (Argentina)
nitrógeno ureico/creatinina:relación de concentración de masa:punto en el tiempo:suero/plasma:cuantitativo:
es-ESSpanish (Spain)
Nitrógeno ureico/Creatinina:Relacion de Masa:Punto temporal:Suero o Plasma:Qn:
tr-TRTurkish (Turkey)
Üre azotu/Kreatinin:KütlOr:Zmlı:Ser/Plaz:Kant:

Example Units

Unit Source
mg/mg{creat} Example UCUM Units

Units and Range

Range
:[6,22];
Unit Type

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=3097-3