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Test Code 2253 Immunoglobulin Free Light Chains

Specimen Containers and Fixatives

Plain Red Top Tube

Specimen Required

NorthShore Lab Services: draw 2.5 mL (1.3 min) blood, centrifuge and submit 1.0 mL (0.5 min) refrigerated serum.

Hospital setting: submit 2.5 mL (1.3 min) blood.

Day(s) and Time(s) Performed

Immunology

Monday – Friday, 5 days

Reference Values

Kappa Free Light Chains: 0.33-3.26 mg/dL

Lambda Free Light Chains: 0.46-2.71 mg/dL

Free Light Chains Kappa/Lambda Ratio: 0.49-2.54

Method Name

Nephelometry

CPT Code Information

83883 × 2