LOINC
Version 2.73

18303-8IgM [Presence] in Serum by ImmunofixationActive

Part Descriptions

LP14674-3   IgM
Immunoglobulin M ( IgM) is a glycoprotein that consists of five disulfide-linked structural units (a pentamer) held together by a J chain. On the surface of B lymphocytes, however, IgM is found as a monomer and does not express the J chain. IgM is the first immunoglubulin to be made by a fetus and during an immune response, it is the first immunoglobulin to be detected followed by IgG. IgM is the primary antibody against A and B antigens on red blood cells. Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See http://creativecommons.org/licenses/by-sa/3.0/ for details. Source: Wikipedia, IgM

LP6336-4   Immunofixation
Plasma or concentrated urine is deposited on a gel. With an electrical current the proteins are sorted in function of their size, after which antigens for each targeted type of immunoglobulin are deposited on the gel. Thus more or less narrow bands appear on the gel, marking the location of the various immunoglobulines.
Immunofixation tends to replace protein electrophoresis because:

• it is faster (results within three hours);
• it is somewhat more sensitive. Immunofixation may reveal an immunoglobulin missed out by protein electrophoresis, especially at low concentrations (less than 1 gram/litre);
• it can be partially automated and can be used in more laboratories;
• it is more easily read and interpreted.

Immunofixation is however only sensitive to immunoglobulins and is more expensive than protein electrophoresis. Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See http://creativecommons.org/licenses/by-sa/3.0/ for details. Source: Wikipedia, Immunofixation

Fully-Specified Name

Component
IgM
Property
PrThr
Time
Pt
System
Ser
Scale
Ord
Method
Immunofixation

Additional Names

Short Name
IgM Ser Ql IFE
Display Name
IgM Immunofixation Ql (S)
Consumer Name Alpha
IgM, Blood

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 1.0l
Last Updated
Version 2.73
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
Observation
Common US Lab Results Rank
16244

Reference Information

Type Source Reference
Webcontent Lab Tests Online®Copyright Copyright © 2021 Lab Tests Online. All rights reserved. Immunoglobulins (IgA, IgG, IgM)

Member of these Groups

LG3247-6 IgM|PrThr|Pt|ANYBldSerPl

Language Variants Get Info

zh-CNChinese (China)
IgM:存在情况或阈值:时间点:血清:序数型:免疫固定电泳分析法
nl-NLDutch (Netherlands)
IgM:aanwezigheid:moment:serum:ordinaal:immunofixatie
et-EEEstonian (Estonia)
IgM:PrThr:Pt:S:Ord:Immuunfiksatsioon
fr-BEFrench (Belgium)
IgM:PrThr:Temps ponctuel:Sérum:Ordinal:Immunofixation
fr-CAFrench (Canada)
IgM:Présence-Seuil:Temps ponctuel:Sérum:Ordinal:Immunofixation
fr-FRFrench (France)
Immunoglobuline M:Présence/Seuil:Ponctuel:Sérum:Qualitatif:Immunofixation
it-ITItalian (Italy)
IgM:PrThr:Pt:Siero:Ord:Immunofissazione
ko-KRKorean (Korea, Republic of)
면역글로불린 M:임의농도:검사시점:혈청:순위척도:면역고정
pt-BRPortuguese (Brazil)
IgM:ACnc:Pt:Soro:Ord:Imunofixação
ru-RURussian (Russian Federation)
IgM:PrThr:ТчкВрм:Сыв:Пор:Иммунофиксация
es-ARSpanish (Argentina)
IgM [Inmunoglobulina M]:concentración arbitraria:punto en el tiempo:suero:ordinal:inmunofijación
es-MXSpanish (Mexico)
IgM:Presencia o umbral:Punto temporal:Suero:Ordinal:Inmunofijación
es-ESSpanish (Spain)
IgM:PrThr:Punto temporal:Suero:Ord:Inmunofijación
tr-TRTurkish (Turkey)
IgM:MevcEşik:Zmlı:Ser:Srl:İmmünfiksasyon

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=18303-8