LOINC
Version 2.67

43919-0Beta-2-Microglobulin [Presence] in Cerebral spinal fluidActive

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

Component
Beta-2-Microglobulin
Property
PrThr
Time
Pt
System
CSF
Scale
Ord
Method

Additional Names

Short Name
B2 Microglob CSF Ql
Display Name
Beta-2-Microglobulin Ql (CSF)

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 2.17
Last Updated
Version 2.56
Change Reason
The PrThr property is used for LOINC terms whose results are reported using an ordered categorical scale, regardless of whether or not an internal threshold was used to make that determination. This change was approved by the Laboratory LOINC Committee in June 2016.
Order vs. Observation
Both

Language Variants Get Info

zh-CNChinese (CHINA)
Beta-2-微球蛋白:存在情况或阈值:时间点:脑脊液:序数型:
nl-NLDutch (NETHERLANDS)
bèta-2-microglobuline:aanwezigheid:moment:liquor cerebrospinalis:ordinaal:
et-EEEstonian (ESTONIA)
Beeta-2-mikroglobuliin:PrThr:Pt:CSF:Ord:
fr-BEFrench (BELGIUM)
Béta-2-microglobuline:PrThr:Temps ponctuel:LCR:Ordinal:
fr-CAFrench (CANADA)
Bêta-2-microglobuline:Présence-Seuil:Temps ponctuel:LCR:Ordinal:
fr-FRFrench (FRANCE)
Beta-2-Microglobulin:PrThr:Pt:CSF:Ord:
el-GRGreek (GREECE)
β2-μικροσφαιρίνη:PrThr:Χρονική στιγμή:ΕΝΥ:Τακτική:
it-ITItalian (ITALY)
Beta-2-Microglobulina:PrThr:Pt:LCS:Ord:
pt-BRPortuguese (BRAZIL)
Beta-2-Microglobulina:ACnc:Pt:LCR:Ord:
ru-RURussian (RUSSIAN FEDERATION)
Бета-2-Микроглобулин:PrThr:ТчкВрм:ЦСЖ:Пор:
es-ESSpanish (SPAIN)
Beta-2-Microglobulina:PrThr:Punto temporal:Líquido Cefalorraquideo:Ord:
tr-TRTurkish (TURKEY)
Beta-2-Mikroglobulin:MevcEşik:Zmlı:BOS:Srl:

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=43919-0