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
Dial fld
Scale
Qn
Method

Additional Names

Short Name
Urea nit Dial fld-mCnc
Display Name
Urea nitrogen (Dial fld) [Mass/Vol]
Consumer Name Alpha Get Info
Urea Nitrogen (BUN), Dialysis fluid

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 1.0b
Last Updated
Version 2.73
Order vs. Observation
Both
Common Test Rank Get Info
5755

Member of these Panels

LOINC Long Common Name
99707-2 Continuous renal replacement therapy panel
99737-9 Intermittent hemodialysis panel

Language Variants Get Info

Tag Language Translation
de-AT German (Austria) Synonyms: BUN /D
es-AR Spanish (Argentina) nitrógeno ureico:concentración de masa:punto en el tiempo:líquido de diálisis:cuantitativo:
es-ES Spanish (Spain) Nitrógeno ureico:Concentración de masa:Punto temporal:Líquido de dialisis:Qn:
Synonyms: Cuantitativo
es-MX Spanish (Mexico) Nitrógeno de urea:Concentración de masa:Punto temporal:Líquido de diálisis:Cuantitativo:
fr-CA French (Canada) Azote uréique:Concentration de masse:Temps ponctuel:Solution de dialyse:Quantitatif:
fr-FR French (France) Azote uréique:Masse/Volume:Ponctuel:Liquide de dialyse:Numérique:
fr-BE French (Belgium) Azote uréique:Concentration de masse:Temps ponctuel:Solution de dialyse:Quantitatif:
Synonyms: BUN
it-IT Italian (Italy) Azoto ureico:MCnc:Pt:Liquido di dialisi:Qn:
Synonyms: Chimica Concentrazione di Massa Dialisato Punto nel tempo (episodio)
ko-KR Korean (Korea, Republic Of) 요소 질소:질량농도:검사시점:투석액:정량:
nl-NL Dutch (Netherlands) ureumstikstof:massa/volume:moment:dialysevloeistof:kwantitatief:
pl-PL Polish (Poland) Azot mocznika:stężenie masowe:punkt w czasie:płyn dializacyjny:ilościowy:
pt-BR Portuguese (Brazil) Uréia nitrogenada:MCnc:Pt:LiqDial:Qn:
Synonyms: ; Urea Nit; UN; Blood urea nitrogen; N2; N; Mass concentration; Level; Point in time; Random; Dialysis fluid; Dialysate; Diaf; Quantitative; QNT; Quant; Quan; Chemistry
ru-RU Russian (Russian Federation) Азот мочевины крови:МассКонц:ТчкВрм:Диал ждк:Колич:
Synonyms: Диализная жидкость Количественный Массовая концентрация Точка во времени;Момент
tr-TR Turkish (Turkey) Üre azotu:KütlKons:Zmlı:Diyal sv:Kant:
Synonyms: Nitrojen
zh-CN Chinese (China) 尿素氮:质量浓度:时间点:透析液: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 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) 渗析液;透析物

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=5918-8