Specimen:

Serum

Collection Medium:

Minimum:

0.5 mls serum

Testing
Schedule:

Batch analysis performed on Tuesdays and Fridays.  Sample must 
be received by 0800 for same day service.

Analytic Time:

3 working days

Reference Range:

Free Kappa:     3.3 - 19.4 mg/L
Free Lambda:    5.71 - 26.3 mg/L
Free K/L Ratio: 0.26 - 1.65 mg/L

Methodology:

Nephelometry

Sample
Processing:

Draw plain red-top tube, separator tubes are NOT acceptable.
Centrifuge within one hour of draw time.
Aliquot serum into labeled container and cap.

Sample
Storage:

Refrigerate up to 8 days or freeze.

Transport
Instructions:

Place requisition into outside pocket of bag.
Place specimen into zip-lock type bag, seal bag.
Place coolant packs into styrofoam container.
Coolant packs up to 8 hours.

CPT Code:

83883 x2

See Additional Information:
Use and Interpretation of Serum Free Light Chain Results