Kappa/Lambda Light Chains, Free with Ratio and Reflex to Immunofixation

Test Code
LAB15122


Quest Code
15122


CPT Codes
83521 (x2)

Includes
If Kappa/Lambda, Free is <0.26 or >1.65, then Immunofixation, Serum will be performed at an additional charge (CPT code(s): 86334).


Preferred Specimen
2 mL serum


Minimum Volume
1 mL


Transport Container
Transport tube


Transport Temperature
Room temperature


Specimen Stability
Room temperature: 72 hours
Refrigerated: 7 days
Frozen: 30 days


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Grossly lipemic • Microbially contaminated • Heavy visible particulate


Methodology
Immunoturbidimetric

Reference Range
Kappa Light Chain, Free, Serum3.3-19.4 mg/L
Lambda Light Chain, Free, Serum5.7-26.3 mg/L
Kappa/Lambda Light Chains Free with Ratio, Serum0.26-1.65


Performing Laboratory
Quest Diagnostics Nichols Institute-San Juan Capistrano, CA
33608 Ortega Highway
San Juan Capistrano, CA 92675-2042




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.