Kappa/Lambda Quantitative Free Light Chains and Ratio
| Sunquest Code: | FLCS | ||
| Epic Code: | LAB4353 | Epic Name: | KAPPA AND LAMBDA LIGHT CHAIN |
| Synonyms: | Quantitative Kappa Light Chains; Quantitative Lamda Light Chains; Immunoglobulin Free Light Chains; Kappa FLC; Lambda FLC; Serum Free Light Chains; Free Light Chains Ratio | ||
| Methodology: | Rate turbidimetry | ||
| CPT Code: | 83883 x2, 83883 | ||
| Turnaround Time: | Performed Mon, Wed, Fri. Results are reported within 1-3 days. | ||
Collection Instructions
| Specimen: | Blood |
| Optimal Volume: | 2 mL |
| Minimum\Peds Volume: | 0.8 mL |
| Container: | Red or gold (gel) (Red (no gel)) |
| Causes for Rejection: | Plasma specimens. |
Processing and Shipping
| Specimen Processing: | Centrifuge ASAP and aliquot 0.5 mL, 0.3 mL minimum. Store in refrigerator. |
| Shipping Instructions: | Ship at refrigerated temperature. |
| Test Performed at or Referral Lab | Endocrine (UMMC-East Bank) |
Interpretive
| Reference Range: |
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| Use: | 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. |
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