Beta-2 Transferrin, Fluid

Container Type

Test ID LAB5138
EPIC ORDER BETA-2 TRANSFERRIN, FLUID
CPT Code(s) 86335
Group/Individual Test Individual
Laboratory Special Chemistry Laboratory
Tube Station 30
Specimen Routine: 2 ml of body fluid in a sterile container; See Comments
  Micro: 0.5 mL minimum
Stability Room Temp: 4 hrs
Refrigerated: 7 Days
Ambient: Not acceptable
Availability Routine: Performed 2 days/week, Tuesdays and Thursdays, no weekends, no holidays; Not available STAT
Turnaround Time 4 Days
Reference Range Normal: Interpretation provided on report; call (984)974-2361 with questions
Comments
  • Off Site Collections: Submit collection container; do not aliquot; do not centrifuge
  • Methodology: Immunofixation Electrophoresis
  • Beta-2 transferrin is a CSF-specific variant of transferrin and is used as an endogenous marker of CSF leakage.

Reviewed by J. Carr on November 14, 2025

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514