Test Details
Mnemonic
KLFU
Ordering Code
3434060
CPT-4 Code(s)
83521 x 2
Specimen Information
Collect
Random urine
Specimen Preparation
Send 2.0 mL urine in a screw capped plastic vial.
Alternate Specimen
24 hour urine
Minimum Volume
1.0 mL
Transport Temperature
Refrigerated
Rejection Criteria
Microbial contaminated; gross hemolysis
Stability
Room temperature: 7 days
Refrigerated: 21 days
Frozen: 30 days
Refrigerated: 21 days
Frozen: 30 days
Methodology
Immunoturbidimetry
Reference Range
Kappa Light Chain, Free, Urine: ≤ 32.90 mg/L
Lambda Light Chain, Free, Urine: ≤ 3.79 mg/L
Kappa/Lambda Light Chains Free
with Ratio, Urine: ≤ 8.69
Lambda Light Chain, Free, Urine: ≤ 3.79 mg/L
Kappa/Lambda Light Chains Free
with Ratio, Urine: ≤ 8.69
Performing Laboratory
Quest
New York DOH Approval Status
Yes