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Kappa/Lambda Light Chains, Free with Ratio, Serum

Test Code

11234X

CPT Code(s)

83883 (x2)

Preferred Specimen(s)

2 mL serum

Minimum Volume

1 mL

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 7 days
Refrigerated: 21 days
Frozen: 90 days

Reject Criteria

Hemolysis • Lipemia • Microbially contaminated • Heavy visible particulate

Methodology

Nephelometry

Performing Laboratory

Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano, CA 92690-6130

Setup Schedule

Set up: 3 days a week ; Report available: 3 to 4 days

Reference Range(s)

Kappa Light Chain, Free, Serum 3.3-19.4 mg/L
Lambda Light Chain, Free, Serum 5.7-26.3 mg/L
Kappa/Lambda Light Chains Free with Ratio, Serum 0.26-1.65

Clinical Significance

Measurement of the amounts of the different light chain types aids in the diagnosis and monitoring of multiple myeloma, lymphocytic neoplasms, Waldenstrom's macroglobulinemia, and connective tissue diseases, such as systemic lupus erythematosus.

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

LOINC assignment is based on a combination of test attributes, including the method used by the performing laboratory. For tests not performed by Quest Diagnostics, codes are assigned by the performing laboratory.

* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.