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HelpTest 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