| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Kappa/Lambda Light Chains, Free with Ratio and Reflex to Immunofixation, Serum (KLFRRI)
Test CodeLAB2325
Quest Code
15122
Alias/See Also
KLFRRI, light chains
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
Preferred: Gold top; Acceptable: Plain red top
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 72 hours
Refrigerated: 7 days
Frozen: 30 days
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, Serum | 3.3-19.4 mg/L |
| Lambda Light Chain, Free, Serum | 5.7-26.3 mg/L |
| Kappa/Lambda Light Chains Free with Ratio, Serum | 0.26-1.65 |
Performing Laboratory
| Quest Diagnostics - South Region |
