Casandra
Casandra Test Code QD65025Version 1 (DRAFT)
Performing Lab
Kappa Light Chain, Free, Urine
Clinical Use
Order TestUse
Determination of free kappa light chains in urine (also known as Bence‑Jones proteins) provides sensitive detection and quantitation of free light chains, often more sensitive than electrophoresis and immunofixation. Elevated urinary free kappa light chains are associated with plasma cell dyscrasias including monoclonal gammopathies and light chain multiple myeloma.
Special Instructions
Not provided.
Limitations
Not provided.
Test Details
Methodology
Immunoassay (Immunoturbidimetry)
Biomarkers
Kappa Light Chain, Free, Urine
AnalyteKappa Light Chain, Free, Urine • Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
LOINC Codes
Result Codes
- 45505500
Result Turnaround Time
2-4 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Urine
Volume
2 mL
Minimum Volume
1 mL
Container
plastic leak‑proof container
Collection Instructions
2 mL urine collected in a plastic leak‑proof container; unpreserved 24‑hour urine collection also acceptable
Causes for Rejection
Microbial contaminated; gross hemolysis
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 7 days |
| Refrigerated | 21 days |
| Frozen | 30 days |
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