LOINC
Version 2.66

12967-6Urea nitrogen [Mass/volume] in 24 hour UrineActive

Component
Urea nitrogen
Property
MCnc
Time
24H
System
Urine
Scale
Qn
Method

Additional Names

Short Name
UUN 24h Ur-mCnc
Display Name Beta
Urea nitrogen (24H U) [Mass/Vol]
Consumer Name Alpha
Urea Nitrogen (BUN), Urine

Part Description

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

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 1.0j-a
Last Updated
Version 2.34
Order vs. Observation
Both

Member of these Panels

LOINC Long Common Name
70300-9 ESRD dialysis adequacy panel

Member of these Groups

LG49761-6 Urea nitrogen|24H|Urine
LG34710-0 Urea nitrogen|MCnc|Urine

Language Variants Get Info

zh-CNChinese (China)
尿素氮:质量浓度:24小时:尿液:定量型:
nl-NLDutch (Netherlands)
ureumstikstof:massa/volume:24 uur:urine:kwantitatief:
fr-BEFrench (Belgium)
Azote uréique:Concentration de masse:24 h:Urine:Quantitatif:
fr-CAFrench (Canada)
Azote uréique:Concentration de masse:24 h:Urine:Quantitatif:
fr-FRFrench (France)
Urea nitrogen:MCnc:24H:Urine:Qn:
de-ATGerman (Austria)
Harnstoff-N/24h U
el-GRGreek (Greece)
Άζωτο ουρίας:Συγκέντρωση μάζας:24 ώρες:Ούρα:Ποσοτική:
it-ITItalian (Italy)
Azoto ureico:MCnc:24h:Urine:Qn:
ko-KRKorean (Korea, Republic of)
요소 질소:질량농도:24시간:뇨:정량:
pt-BRPortuguese (Brazil)
Uréia nitrogenada:MCnc:24H:Urina:Qn:
ru-RURussian (Russian Federation)
Азот мочевины крови:МассКонц:24 часа:Моча:Колич:
es-ARSpanish (Argentina)
nitrógeno ureico:concentración de masa:24 horas:orina:cuantitativo:
es-ESSpanish (Spain)
Nitrógeno ureico:Concentración de masa:24 horas:Orina:Qn:
tr-TRTurkish (Turkey)
Üre azotu:KütlKons:24Sa:İdrar:Kant:

Example Units

Unit Source
mg/dL Example UCUM Units

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=12967-6