Version 2.80

Status Information

Status
DISCOURAGED
Comment
These were created for the sole purpose of facilitating use of LOINC for submissions for medication approval to the FDA and should not be used in routine laboratory reporting.

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

Fully-Specified Name

Component
Urea nitrogen
Property
MSCnc
Time
Pt
System
Urine
Scale
Qn
Method

Additional Names

Long Common Name
Urea nitrogen [Mass or Moles/volume] in Urine
Short Name
UUN Ur-msCnc
Display Name
Urea nitrogen (U) [Mass or moles/Vol]
Consumer Name Alpha Get Info
Urea Nitrogen (BUN), Urine

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 2.11
Last Updated
Version 2.42 (MIN)
Order vs. Observation
Both

Language Variants Get Info

Tag Language Translation
el-GR Greek (Greece) Άζωτο ουρίας:MSCnc:Pt:Ούρα:Qn:
Synonyms: MSCnc Άζωτο Άζωτο ουρίας Ουρία
es-AR Spanish (Argentina) nitrógeno ureico:concentración de masa:punto en el tiempo:orina:cuantitativo:
es-ES Spanish (Spain) Nitrógeno ureico:Razón de masa o sustancia:Punto temporal:Orina:Qn:
Synonyms: Cuantitativo
es-MX Spanish (Mexico) Nitrógeno de urea:Concentración de masa o sustancia:Punto temporal:Orina:Cuantitativo:
it-IT Italian (Italy) Azoto ureico:MSCnc:Pt:Urine:Qn:
Synonyms: Chimica Concentrazione Sostanza o Massa Punto nel tempo (episodio)
ko-KR Korean (Korea, Republic Of) 요소 질소:질량물질농도:검사시점:뇨:정량:
nl-NL Dutch (Netherlands) ureumstikstof:massa of stof/volume:moment:urine:kwantitatief:
pt-BR Portuguese (Brazil) Uréia nitrogenada:MSCnc:Pt:Urina:Qn:
Synonyms: ; Urea Nit; UN; Blood urea nitrogen; N2; N; Level; Point in time; Random; UR; Urn; UA; Quantitative; QNT; Quant; Quan; Chemistry; UUN
ru-RU Russian (Russian Federation) Азот мочевины крови:МасМольКонц:ТчкВрм:Моча:Колич:
Synonyms: Количественный Массовая или Молярная Концентрация Точка во времени;Момент
tr-TR Turkish (Turkey) Üre azotu:KütlSubKons:Zmlı:İdrar:Kant:
Synonyms: Nitrojen
zh-CN Chinese (China) 尿素氮:质量或物质的量浓度: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 N;N2;Nit;氮气 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） 尿液脲氮 尿脲氮 时刻;随机;随意;瞬间 质量或摩尔浓度;质量或摩尔浓度(单位体积);质量或物质的量浓度(单位体积)

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

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=35235-1