Free Light Chains (FLC)
Department: Special Chemistry
Test Synonym(s): LAB735, FLC, Free Light Chains Quant, Free Light Chains Quantitative
Test Components: Test includes KLC, LLC and calculated K/L Ratio
CPT Codes: 83883 x2
Methodology: Optilite Turbidimetric
Reference Range: 0.26-1.65
Tube Type: Red top tube (no gel)
Specimen: Serum
Pediatric Requirements: 2 Red top microtainer
Volume: 2.0 mL serum
Minimum Volume: 1 red top (Pediatric = 2 red top microtainers)
Temperature: 2-8C
Stability: Separate and refrigerate serum within 2 hours. Refrigerated: 21 days
Reasons for Rejection: Hemolyzed sample, lipemic sample, Plasma or ambient specimens
Days Performed: Monday - Friday
Times Performed: Batched on first shift
TAT: 24 hours
Significance: Patient results determined by assays using different manufacturers for methods may not be comparable.
Special Instructions: Separate from cells ASAP or within 2 hours of collection. Lipemic or hemolyzed samples are not acceptable for Free Light Chain analysis.
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