IgM.lambda [Mass/volume] in Serum or Plasma   74867-3

LOINC Code


LOINC code74867-3
nameIgM.lambda [Mass/volume] in Serum or Plasma
descriptionImmunoglobulins are made up of two identical heavy chains which define the immunoglobulin class (A, G, or M) and two identical light chains, kappa or lambda (κ or λ). Each light chain is bound to a heavy chain. This test measures IgM, but selectively IgM with a lambda light chain. The assay employs antibodies that target unique junctional epitopes between the light and heavy chains for each Ig molecule. High serum concentrations of monoclonal protein may indicate an underlying abnormality such as multiple myeloma, monoclonal gammopathy of unknown significance (MGUS), or other lymphoproliferative disorders. [PMID:23211046] This term was based on, but not limited in use to, the Hevylite Human IgM Lambda assay.
statusACTIVE

Fully-Specified Name

componentIgM.lambda
propertyMCnc  =  Mass Concentration
timePt  =  Point in time:  To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements.
systemSer/Plas
    Ser  =  Serum
    Plas  =  Plasma
scaleQn  =  Quantitative:  The result of the test is a numeric value that relates to a continuous numeric scale. Reported either as an integer, a ratio, a real number, or a range. The test result value may optionally contain a relational operator from the set {<=, <, >, >=}. Valid values for a quantitative test are of the form "7", "-7", "7.4", "-7.4", "7.8912", "0.125", "<10", "<10.15", ">12000", 1-10, 1:256
method

Additional Names

short nameIgM lambda SerPl-mCnc

Basic Attributes

classCHEM
type1  Laboratory
order vs. observationBoth
example UCUM unitsg/L
The Unified Code for Units of Measure (UCUM) is a code system intended to include all units of measures being contemporarily used in international science, engineering, and business (www.unitsofmeasure.org)
example unitg/L

Associated Observations

LOINC codes that represent optional associated observation(s) for a clinical observation or laboratory test. A LOINC term may represent a single associated observation or panel containing several associated observations.

Member of these Panels

74773-3Immunoglobulin light chains and heavy chains panel - Serum or Plasma

History/Usage

test rank16308 of 2000 most commonly performed tests by labs in USA
first released
last updated2.73
last change typeMIN  - change to field other than name

Related Names

Chemistry
IgM lambda
Immune globulin M
Immunoglobulin M
Level
Mass concentration
Pl
Plasma
Plsm
Point in time
QNT
Quan
Quant
Quantitative
Random
SerP
SerPl
SerPlas
Serum
Serum or plasma
SR

Copyright © 2024 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2024, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.

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