Sign in →

Epic Code LAB3114 Kappa and Lambda Free Light Chains

Test Name Alias

KappaLambda | 4191

Interface Order Alias


Collection Instructions

Specimen Collection: Blood

Container(s): Gold Top (Serum Separator-SST Gel)

Preferred Volume to Collect: 5.0 mL

Minimum Volume to Collect: 2.0 mL

Neonate Volume to Collect: 2.0 mL

Capillary collect ok: Yes

Microtainer acceptable: Yes

Collection Instructions:

  • Gently invert gold tube(s) 8 - 10 times to mix clot activator with blood.
  • Specimen should be processed within 2 hours – See Processing Instructions.


Processing Instructions (Laboratory, Outpatient or Off-site collection)

  • Processed Specimen: Serum
  • Centrifuge/Spin: Yes
  • Aliquot: No
  • Processing Instructions:
    • Allow blood to clot for 30 minutes in a vertical position and centrifuge within 2 hours.
  • Transport Temperature: Refrigerate

Rejection Criteria

Specimen not centrifuged within 2 hours

Specimen Stability

Ambient: 8 hours

Refrigerate: 7 days

Laboratory Retention: 7 days

Test Frequency

Available Monday through Friday

Turn-around time: 1-3 days

Reference Range

Kappa Free Light Chain: ≥18 years: 0.33 - 1.94 mg/dl
Lambda Free Light chain: ≥18 years: 0.57 - 2.63 mg/dl
Kappa Lambda FLC Ratio: ≥18 Years: 0.26 - 1.65

Performing Department


Performing Department Laboratory Location

Corewell Health Reference Laboratory, Grand Rapids, MI




83521, 83521

CDM Code

3018352101, 3018352101

Epic Test ID



Kappa Free Light Chain: 36916-5

Lambda Free Light Chain: 33944-0

Kappa Lambda FLC Ratio: 48378-4

KL Prozone: N/A

Mayo Access Code


Reviewed Date