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Free Kappa & Lambda light chains, urine
| Item | Value |
|---|---|
| Approval req'd? | No |
| Available Stat? | No |
| Test code | FRULC |
| Test group | light chains |
| Performed by | Quest |
| Sendout? | Yes |
| Method | Nephelometry |
| Container type | 24 hour urine container or urine cup Click here for Urine Preservative Requirements |
| Amount to Collect | Complete 24 hour urine output or 10 mL random urine |
| Sample type | 24 hour or random urine |
| Preferred volume | 2 mL urine |
| Min. Volume | 1 mL urine |
| Processing notes | Refrigerate sample. Order Quest test # 11233X. |
| Normal range | |
| Synonyms | K/L ratio |
| Stability | Room temperature 1 week, refrigerated 3 weeks, frozen at -20C 3 months |
| Turn around times | Set up 5 days per week. Turn around 2-4 days |
| Additional information | Polyclonal Immunoglobulin light chains (kappa and Lambda) normally occur in a ratio of 2:1, whereas monoclonal immunoglobulin light chains exhibit only one light chain type, either kappa or lambda. A kappa:lambda ratio outside 2:1 is an indication of a monoclonal gammopathy. |
| LOINC code | 41759-2 |
| Last Updated | 3/24/2013 7:56:10 PM |
| Entry Number | 1135 |
If you have additional questions regarding this test, please call: 415-353-1667