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 renal clearance
Property
VRat
Time
Pt
System
Urine+Ser/Plas
Scale
Qn
Method

Additional Names

Short Name
UUN Cl Ur+SerPl-vRate
Display Name
Urea nitrogen renal clearance (U+S/P) [Vol/Time]
Consumer Name Alpha Get Info
Urea Nitrogen (BUN) renal clearance, Urine+Blood

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 1.0j-a
Last Updated
Version 2.73
Order vs. Observation
Both
Common Test Rank Get Info
11795

Language Variants Get Info

Tag Language Translation
de-DE German (Germany) Harnstoff-Stickstoff Renale Clearance:Volumenrate:Zeitpunkt:Urin und Serum oder Plasma:Quantitativ:
es-AR Spanish (Argentina) depuramiento de nitrógeno ureico renal:índice de volumen:punto en el tiempo:orina:cuantitativo:
es-ES Spanish (Spain) Nitrógeno ureico Aclaramiento renal:Indice de volumen:Punto temporal:Orina y suero o plasma:Qn:
Synonyms: Cuantitativo
es-MX Spanish (Mexico) Aclaramiento renal de nitrógeno ureico:Tasa de volumen:Punto temporal:Orina y suero o plasma:Cuantitativo:
fr-CA French (Canada) Azote uréique, Clairance rénale:Taux volumique:Temps ponctuel:Urine+Sérum/Plasma:Quantitatif:
fr-FR French (France) Azote uréique clairance:Volume/Temps:Ponctuel:Urine+Sérum/Plasma:Numérique:
fr-BE French (Belgium) Azote uréique Clairance rénale:Taux volumique:Temps ponctuel:Urine+Sérum/Plasma:Quantitatif:
Synonyms: BUN
it-IT Italian (Italy) Azoto ureico Clearance renale:VRat:Pt:Urina+Siero/Plasma:Qn:
Synonyms: Chimica Plasma Punto nel tempo (episodio) Siero Siero o Plasma Tasso di Volume Urine & Siero o Plasma
ko-KR Korean (Korea, Republic Of) 요소 질소 콩팥 제거율:부피율:검사시점:뇨+혈청/혈장:정량:
nl-NL Dutch (Netherlands) ureumstikstof renale klaring:volume/tijd:moment:urine en serum of plasma:kwantitatief:
pl-PL Polish (Poland) Azot mocznika klirens nerkowy:wskaźnik objętości w jednostce czasu:punkt w czasie:mocz i surowica lub osocze:ilościowy:
pt-BR Portuguese (Brazil) Clearance renal de Uréia Nitrogenada:VRat:Pt:Urina+Sor/Plas:Qn:
Synonyms: ; Urea Nit; UN; Blood urea nitrogen; N2; N; vRate; Volume rate; Flow; Point in time; Random; Ur+SerPl; Ur+SerPl; UR; Urn; UA; SerPl; SerPlas; SerP; Serum; SR; Plasma; Pl; Plsm; Quantitative; QNT; Quant; Quan; Cl; Kidney; Clear; Clearanc; Clearances; Clr; Chemistry; BUN; UUN
ru-RU Russian (Russian Federation) Азот мочевины крови почечный клиренс:ОбСк:ТчкВрм:Моча+Сыв/Плаз:Колич:
Synonyms: Количественный Моча и Сыворотка или Плазма Объемная скорость Плазма Сыворотка Сыворотка или Плазма Точка во времени;Момент
tr-TR Turkish (Turkey) Üre azotu renal klirens:HcmOran:Zmlı:İdrar+Ser/Plaz:Kant:
Synonyms: Nitrojen
zh-CN Chinese (China) 尿素氮 肾脏清除率:体积速率:时间点:尿液+血清/血浆:定量型:
Synonyms: BUN 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 体积速率(单位时间);单位时间内体积的变化速率;流量 关于肾脏的 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 & 血清或血浆;尿+血清/血浆;尿与血清或血浆;尿液 & 血清或血浆;尿液与血清或血浆 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 廓清 廓清;清除率;廓清率 廓清率 时刻;随机;随意;瞬间 清除率 肾 肾;肾脏的;肾的;与肾脏相关的 肾清除;肾清除率;肾脏清除 肾的 肾脏的 血清/血浆脲氮 血清或血浆

Example Units

Unit Source
mL/min 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=13506-1