Version 2.74

Part Description

LP14907-7   Beta-2-Microglobulin
β2-Microglobulin (β2-M) is a low-molecular weight protein that is the light chain of the class I MHC (major histocompatibility complex) antigens. Present in all nucleated cells and almost totally reabsorbed and catabolized by the proximal tubules, it is a marker of immune activation and proximal tubular function and found in nearly all body fluids. Because it accumulates with renal dysfunction and deposits in tissues, β2-M is a cause of dialysis related amyloidosis. Levels are also elevated in conditions such as chronic inflammation, liver disease, renal dysfunction, and some acute viral infections. It is found in many hematological malignancies and thus a valuable treatment monitor and prognostic marker, particularly for multiple myeloma. [Tietz] Source: Regenstrief LOINC

Fully-Specified Name


Additional Names

Short Name
B2 Microglob 24h Ur-mCnc
Display Name
Beta-2-Microglobulin (24H U) [Mass/Vol]
Consumer Name Alpha
Beta-2-Microglobulin, Urine

Basic Attributes

First Released
Version 2.27
Last Updated
Version 2.70
Order vs. Observation

Member of these Groups Get Info

LOINC Group Group Name
LG44305-7 Beta-2-Microglobulin|24H|Urine
LG35151-6 Beta-2-Microglobulin|MCnc|Urine

Language Variants Get Info

Tag Language Translation
zh-CN Chinese (China) Beta-2-微球蛋白:质量浓度:24小时:尿液:定量型:
Synonyms: 1天;1日;24.0小时;一天;一日;二十四个小时;二十四小时 Ⅱ B B2 Microglob;b2-M;Beta 2 微球蛋白;β2-微球蛋白;β2 微球蛋白;β2M II β 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 水平;浓度;质量浓度(单位体积) 贝塔
fr-CA French (Canada) Bêta-2-microglobuline:Concentration de masse:24 h:Urine:Quantitatif:
et-EE Estonian (Estonia) Beeta-2-mikroglobuliin:MCnc:24 tunni:U:Qn:
Synonyms: Kvantitatiivne Uriin
pt-BR Portuguese (Brazil) Beta-2-Microglobulina:#N/A:24H:Urina:Qn:
Synonyms: ; B2 Microglob; b2-M; Mass concentration; Level; 1 day; 24 hours; 24HR; Ur; UR; Urn; UA; Quantitative; QNT; Quant; Quan; B; II; Chemistry
es-ES Spanish (Spain) Beta-2-Microglobulina:Concentración de masa:24 horas:Orina:Qn:
it-IT Italian (Italy) Beta-2-Microglobulina:MCnc:24h:Urine:Qn:
Synonyms: 24 Ore Chimica Concentrazione di Massa
el-GR Greek (Greece) β2-μικροσφαιρίνη:Συγκέντρωση μάζας:24 ώρες:Ούρα:Ποσοτική:
fr-FR French (France) Bêta-2 microglobuline:Masse/Volume:24H:Urine:Numérique:
tr-TR Turkish (Turkey) Beta-2-Mikroglobulin:KütlKons:24Sa:İdrar:Kant:
ru-RU Russian (Russian Federation) Бета-2-Микроглобулин:МассКонц:24 часа:Моча:Колич:
Synonyms: Количественный Массовая концентрация
nl-NL Dutch (Netherlands) bèta-2-microglobuline:massa/volume:24 uur:urine:kwantitatief:
Synonyms: 24U beta-2-Microglobuline
fr-BE French (Belgium) Béta-2-microglobuline:Concentration de masse:24 h:Urine:Quantitatif:
Synonyms: B2M
de-DE German (Germany) Beta-2-Mikroglobulin:Massenkonzentration:24 Stunden:Urin:Quantitativ:
Synonyms: ß2-Mikroglobulin; b2-Mikroglobulin
es-MX Spanish (Mexico) Beta-2-microglobulina:Concentración de masa:24H:Orina:Cuantitativo:

Example Units

Unit Source
ug/L Example UCUM Units

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

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