Kappa/Lambda Light Chains, Free
| Alternate Name | Kappa/Lambda Light Chains, Free with Ratio, Serum Immunoglobulin Free Light Chains |
| Ordering Recommendation | Used to measure the amount of kappa and lambda free light chains (FLCs) in the blood and calculates the kappa to lambda ratio. It is used to assist in the diagnosis of plasma cell disorders, including multiple myeloma, primary amyloidosis, monoclonal gammopathy of unknown significance (MGUS), Waldenström’s macroglobulinemia, and related disorders. It is also used to monitor disease activity and treatment. |
| Specimen | Serum |
| Container Type | Red/Yellow Top Tube
|
| Reference Range | See patient report |
| Stability | 21 days |
| Transport Temp | Refrigerate 2°-8° C |
| Instructions | None |
| Performing Lab | Quest Nichols Institute – San Juan Capistrano, CA 92675 Reference Lab Test Code: 11234 |
| Days Performed | Tues-Sat |
| Report Available | 2-4 days |
| NY State Available | Yes |
| LOINC | 36916-5, 33944-0, 48378-4 |
| CPT Code | 83521 (x2) |
