Lambda light chains.free [Mass/volume] in Serum by Nephelometry 80516-8
LOINC Code
| LOINC code | 80516-8 | ||
|---|---|---|---|
| name | Lambda light chains.free [Mass/volume] in Serum by Nephelometry | ||
| description | This nephelometric assay provides a sensitive test for monitoring patients with monoclonal light chain diseases but no M-spike on protein electrophoresis, and may be more sensitive than immunofixation for detection of monoclonal free light chains. In some patients with non-secretory myeloma, systemic amyloidosis, or light chain deposition disease, the nephelometric free light chain assay provides a positive identification of a monoclonal serum light chain when the serum immunofixation is negative. | ||
| status | ACTIVE | ||
Fully-Specified Name | |||
| component | Immunoglobulin light chains.lambda.free | ||
| property | MCnc = Mass Concentration | ||
| time | Pt = Point in time: To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements. | ||
| system | Ser = Serum | ||
| scale | Qn = 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 | Nephelometry | ||
Additional Names | |||
| short name | Lambda LC Free Ser Neph-mCnc | ||
Basic Attributes | |||
| class | CHEM | ||
| type | 1 Laboratory | ||
| order vs. observation | Both | ||
| example UCUM units | mg/mL 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 unit | mg/mL | ||
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 Groups | |||
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Member of these Panels | |||
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History/Usage | |||
| test rank | 19254 of 2000 most commonly performed tests by labs in USA | ||
| first released | |||
| last updated | 2.73 | ||
| last change type | MIN - change to field other than name | ||
| change reason | Changed the LCN from 'Immunoglobulin light chains.lambda.free' to ' Lambda light chains.free' for readability | ||
Related Names | |||
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Copyright © 2025 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2025, 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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