ARUP's Laboratory Test Directory
| 0055167: Kappa/Lambda Quantitative Free Light Chains with Ratio, Serum |
| Test Mnemonic: KAP/LAM F | |
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#ExistMethodology>
Methodology: Nephelometry
*ExistMethodology> #ExistPerformed> Performed: Mon, Thu *ExistPerformed> #ExistReported> Reported: 1-5 days *ExistReported> |
| Specimen Required: | |
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#ExistCollect>
Collect: One 4 mL SST.
*ExistCollect> #ExistTransport> Transport: 2 mL serum at 2-8°C. (Min: 0.5 mL) Submit specimen in an ARUP Standard Transport Tube. *ExistTransport> #ExistRemarks> Remarks: Remove serum from cells ASAP. *ExistRemarks> #ExistConditions> Unacceptable Conditions: Plasma or ambient specimens. *ExistConditions> #ExistStability> Stability: After separation from cells: Ambient: 2 hours; Refrigerated: 1 week; Frozen: 2 weeks *ExistStability> |
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| Reference Interval: | ||||||||||||
#ExistRefRangeTable>
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| Note: | |
| This assay is highly sensitive to increasing concentrations of monoclonal free kappa or free lambda light chains in the serum of patients with evolving or relapsing myelomas. |
| CPT Code(s): | |
| 83883 Kappa; 83883 Lambda |