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Labcorp Oklahoma, Inc.
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Beta-2, Transferrin BF

Order Name BETA-2 TRA
Test Number: 3656675
Revision Date 05/19/2025
Test Name Methodology LOINC Code
Beta-2, Transferrin BF
Immunofixation Electrophoresis  
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 0.5 mL Body Fluid Sterile Screwtop Container Frozen
Instructions Specimen: Body Fluid Do Not send CSF specimens!
Volume: 0.5 mL
Container: Sterile container, syringe, test tube, or microtube
Collection: These specimens should be frozen immediately following collection and kept frozen. 1. If submitting a syringe, remove needle. Add cap to end of syringe. 2. If direct collection is not feasible, specimen may be collected using a plain cotton swab or gauze. 3. If gauze is used to collect specimen, circle area on the guaze where specimen was collected. 4. Place cotton swab or gauze in as small a container as possible (eg, plain test tube or collection container). 5. DO NOT collect specimen with a culture swab. 6. DO NOT add any liquid to the swab or gauze.
Cause for Rejection:Specimens collected with additives such as microbiology media (eg, Stuart or Amies liquid medium) or TransFix/EDTA will be rejected. Specimen collected with a culture swab. Adding any liquid to the swab or gauze.

Testing referred to Mayo Clinic Labs ;V#BETA2
GENERAL INFORMATION
Expected TAT 4 - 8 days  
Clinical Use This test is to detect CSF in body fluids such as sinus or ear drainage. 
Performing Labcorp Test Code 834198 
CPT Code(s) 86335
Lab Section Reference Lab