Version 2.78

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
MCnc
Time
Pt
System
CSF
Scale
Qn
Method

Additional Names

Long Common Name
Urea nitrogen [Mass/volume] in Cerebral spinal fluid
Short Name
Urea nit CSF-mCnc
Display Name
Urea nitrogen (CSF) [Mass/Vol]
Consumer Name Alpha Get Info
Urea Nitrogen (BUN), Spinal fluid

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 1.0k
Last Updated
Version 2.70
Order vs. Observation
Both

Language Variants Get Info

Tag Language Translation
el-GR Greek (Greece) Άζωτο ουρίας:Συγκέντρωση μάζας:Χρονική στιγμή:ΕΝΥ:Ποσοτική:
es-AR Spanish (Argentina) nitrógeno ureico:concentración de masa:punto en el tiempo:líquido cefalorraquídeo:cuantitativo:
es-ES Spanish (Spain) Nitrógeno ureico:Concentración de masa:Punto temporal:Líquido Cefalorraquideo:Qn:
Synonyms: Cuantitativo
es-MX Spanish (Mexico) Nitrógeno de urea:Concentración de masa:Punto temporal:Fluído espinal cerebral:Cuantitativo:
fr-CA French (Canada) Azote uréique:Concentration de masse:Temps ponctuel:LCR:Quantitatif:
fr-FR French (France) Azote uréique:Masse/Volume:Ponctuel:Liquide céphalorachidien:Numérique:
fr-BE French (Belgium) Azote uréique:Concentration de masse:Temps ponctuel:LCR:Quantitatif:
Synonyms: BUN
it-IT Italian (Italy) Azoto ureico:MCnc:Pt:LCS:Qn:
Synonyms: Chimica Concentrazione di Massa Liquido cerebrospinale Punto nel tempo (episodio)
ko-KR Korean (Korea, Republic Of) 요소 질소:질량농도:검사시점:뇌척수액:정량:
nl-NL Dutch (Netherlands) ureumstikstof:massa/volume:moment:liquor cerebrospinalis:kwantitatief:
pl-PL Polish (Poland) Azot mocznika:stężenie masowe:punkt w czasie:płyn mózgowo-rdzeniowy:ilościowy:
pt-BR Portuguese (Brazil) Uréia nitrogenada:MCnc:Pt:LCR:Qn:
Synonyms: ; Urea Nit; UN; Blood urea nitrogen; N2; N; Mass concentration; Level; Point in time; Random; Cerebral spinal fluid; Spinal Fluid; Cerebrospinal Fl; Spinal Flu; Spinal Fld; Quantitative; QNT; Quant; Quan; Chemistry
ru-RU Russian (Russian Federation) Азот мочевины крови:МассКонц:ТчкВрм:ЦСЖ:Колич:
Synonyms: Количественный Массовая концентрация Точка во времени;Момент Цереброспинальная жидкость
tr-TR Turkish (Turkey) Üre azotu:KütlKons:Zmlı:BOS:Kant:
Synonyms: Nitrojen
zh-CN Chinese (China) 尿素氮:质量浓度:时间点:脑脊液: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 CSF CSF;脊髓液;Cerebral spinal fluid;脑脊髓液 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 水平;浓度;质量浓度(单位体积) 脊液 脊髓液 脑脊液（Cerebral spinal fluid，CSF） 脑脊髓液

Example Units

Unit Source
mg/dL 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=14000-4