6299-2
Urea nitrogen [Mass/volume] in Blood
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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.
Source: Regenstrief LOINC
Reference Information
| Type | Source | Reference |
|---|---|---|
| Mapping Guidance | Regenstrief Help | Usually called BUN. This would be the POC instrument. Mapper’s Guide for the Top 2000 plus LOINC Laboratory Observations |
LOINC Names Get Info
- Fully-Specified Name
- Urea nitrogen:
MCnc: Pt: Bld: Qn: - Long Common Name
- Urea nitrogen [Mass/volume] in Blood
- Short Name
- BUN Bld-mCnc
- Display Name
- Urea nitrogen (Bld) [Mass/Vol]
- Consumer Name Alpha Get Info
- Urea Nitrogen (BUN), Blood
Part Model Get Info
Basic Attributes
- Class
- CHEM
- Type
- Laboratory
- First Released
- Version 1.0f
- Last Updated
- Version 2.73 (MIN)
- Order vs. Observation
- Both
- Common Test Rank Get Info
- 323
Member of these Panels
| LOINC | Long Common Name |
|---|---|
| 101655-9 | Basic metabolic and hematocrit panel - Blood |
| 51990-0 | Basic metabolic panel - Blood |
| 104076-5 | Basic metabolic with hemoglobin and hematocrit panel - Blood |
| 54037-7 | HEDIS 2009 panel |
| 57820-3 | HEDIS 2010 panel |
| 60442-1 | HEDIS 2011 panel |
| 67767-4 | HEDIS 2012 panel |
| 72199-3 | HEDIS 2013 panel |
| 74234-6 | HEDIS 2014 Value Sets |
Member of these Groups Get Info
| LOINC Group | Group Name |
|---|---|
| LG1314-6 | Urea nitrogen| |
| LG49776-4 | Urea nitrogen| |
Language Variants Get Info
| Tag | Language | Translation |
|---|---|---|
| cs-CZ | Czech (Czechia) | Dusík močoviny: |
| de-DE | German (Germany) | Harnstoff-Stickstoff: |
| el-GR | Greek (Greece) | Άζωτο ουρίας: Synonyms: CHEM MCnc Pt Qn Άζωτο Άζωτο ουρίας Αίμα Ουρία |
| es-AR | Spanish (Argentina) | nitrógeno ureico: |
| es-ES | Spanish (Spain) | Nitrógeno ureico: Synonyms: Cuantitativo |
| es-MX | Spanish (Mexico) | Nitrógeno de urea: |
| fr-CA | French (Canada) | Azote uréique: |
| fr-FR | French (France) | Azote uréique: |
| fr-BE | French (Belgium) | Azote uréique: Synonyms: BUN |
| it-IT | Italian (Italy) | Azoto ureico: Synonyms: Chimica Concentrazione di Massa Punto nel tempo (episodio) Sangue |
| ko-KR | Korean (Korea, Republic Of) | 요소 질소: |
| nl-NL | Dutch (Netherlands) | ureumstikstof: |
| pl-PL | Polish (Poland) | Azot mocznika: |
| pt-BR | Portuguese (Brazil) | Uréia nitrogenada: Synonyms: ; |
| ru-RU | Russian (Russian Federation) | Азот мочевины крови: Synonyms: Количественный Кровь Массовая концентрация Точка во времени; |
| tr-TR | Turkish (Turkey) | Üre azotu: Synonyms: Nitrojen |
| uk-UA | Ukrainian (Ukraine) | Азот сечовини: Synonyms: Blood; |
| zh-CN | Chinese (China) | 尿素氮: Synonyms: BUN BUN; |
Example Units
| Unit | Source |
|---|---|
| mg/dL | Example UCUM Units |
| mg/dL | REGENSTRIEF |
LOINC Terminology Service (API) using HL7® FHIR® Get Info
Requests to this service require a free LOINC username and password. Below is a sample of the possible capabilities. See the LOINC Terminology Service documentation for more information.
LOINC Copyright
Copyright © Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://