80517-6
LOINC Code
| LOINC code | 80517-6 | ||
|---|---|---|---|
| name | |||
| description | An elevated kappa/lambda ratio supports the diagnosis of a monoclonal gammopathy and requires further investigation. Borderline elevated kappa/lambda ratios occur with renal impairment, and may require appropriate renal function tests. Elevated levels of both kappa and lambda with normal kappa/lambda ratio - may be due to (1) renal impairment (common); (2) Over-production of polyclonal FLC from inflammatory conditions (common); (3) Bi-clonal gammopathies of different free light chain types (rare). | ||
| status | ACTIVE | ||
Fully-Specified Name | |||
| component | Immunoglobulin light chains.kappa.free/Immunoglobulin light chains.lambda.free | ||
| property | MRto = Mass Ratio | ||
| 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 | Bence Jones protein; BJ Protein; BJP; Chain; Chemistry; FR; Hematology; Heme; Immune globulin; Immuno; Immunoglob; Immunoglobin; Imunoglbon; Imunoglobn; Kappa LC; Kappa LC Free; Lambda Free; Lambda LC; Lambda LC Free; Light scattering; Mass concentration | ||
Basic Attributes | |||
| class | CHEM | ||
| type | 1 Laboratory | ||
| order vs. observation | Kappa LC Free/L | ||
| example UCUM units | Ratio 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) | ||
Member of these Groups | |||
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Member of these Panels | |||
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History/Usage | |||
| first released | |||
| last updated | 2.73 | ||
| last change type | MIN - change to field other than name | ||
| change reason | {Ratio} | ||
Related Names | |||
Copyright © 2026 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2026, 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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