Kappa Light Chain, Free, Urine

Test Code

15076

CPT Code(s)

83521

Test Code

15076

CPT Code(s)

83521

Not offered in Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano | Quest Nichols Institute -San Juan Capistrano, CA. Please provide SERVICE AREA INFORMATION to find available tests you can order.

In-home collection may be available in your area for purchase through Quest Mobile.

Clinical Significance

Kappa Light Chain, Free, Urine - Kappa/Lambda Light Chains, Free with Ratio, Urine by turbidimetry provides a sensitive detection and quantitation of free light chains (FLCs) in urine earlier than electrophoresis and immunofixation. Urinary FLCs (uFLCs) are known as Bence-Jones Proteins (BJP).
Abnormal levels of FLCs are commonly produced in a constellation of disorders referred as Plasma Cell Dyscrasia producing monoclonal gammopathies (MG), which constitutes neoplastic growth of plasma cell lines that secrete monoclonal proteins, either as intact immunoglobulins, or isolated light chains as in Light Chain Multiple Myeloma ...

Test Resources

None found for this test
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Test Details

Methodology

Immunoturbidimetry

Reference Range(s)

≤32.90 mg/L

LOINC® Codes, Performing Laboratory

Service Area must be determined

Methodology

Immunoturbidimetry

Reference Range(s)

≤32.90 mg/L

LOINC® Codes, Performing Laboratory

Service Area must be determined

Preferred Specimen(s)

2 mL urine collected in a plastic leak-proof container

Alternative Specimen(s)

24-hour urine, unpreserved

Minimum Volume

1 mL

Transport Container

Plastic leak-proof container

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 7 days
Refrigerated: 21 days
Frozen: 30 days

Reject Criteria

Gross hemolysis • Microbial contamination

Setup Schedule

Service Area must be determined

Preferred Specimen(s)

2 mL urine collected in a plastic leak-proof container

Alternative Specimen(s)

24-hour urine, unpreserved

Minimum Volume

1 mL

Transport Container

Plastic leak-proof container

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 7 days
Refrigerated: 21 days
Frozen: 30 days

Reject Criteria

Gross hemolysis • Microbial contamination

Setup Schedule

Service Area must be determined

In-home collection may be available in your area for purchase through Quest Mobile.

Test Details

Clinical Significance

Test Resources

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 guidance 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.

This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.

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