Test Name
SERUM FREE LIGHT CHAINS
Aliases
-
Abbreviations
FLC, SFLC
Test Classification
GROUPED TEST
Department
SPECIAL CHEMISTRY
Sub Department
-
TAT Category
BUSINESS (WORKING) TIME
Estimated TAT
144
TAT Units
HOURS
Test Requirements
Serum in plain tube (red top) or SST tube (yellow top) or in a separation vial. Centrifuge tubes within 1 hour. Separate centrifuged serum in plain tubes within 1 hour.
Test components: Free kappa light chains, Free lambda light chains, Kappa/lambda ratio.
SHIPPING/ TRANSPORTATION REQUIREMENTS
Shipping Temperature: Ambient
ANALYTE STABILITY
Room Temperature: 7 days at 20-25°C │ Refrigerated: 30 days at 2-8°C │ Frozen: 6 months at -20°C
Clinical Utility
Diagnose & monitor patients with monoclonal gammopathies e.g. multiple myeloma. Kappa and lambda light chains and their ratio are determined with abnormal rations indicating clonal plasma cell proliferation.
Last Review
26th Feb 2026