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HelpTest Code LAB205 Beta-2 Transferrin
Additional Codes:
B2 TSF
Notes:
Not intended for serum, plasma or urine.
Collection:
Specimen: Fluid (nasal, aural, others) – Specify fluid type on the lab request or electronic order.
Container: Plain or Sterile Container
Volume: Fluid – 1mL ; Minimum 0.075 mL. Fluid must be free-flowing. Mucoid or viscous fluids are unacceptable.
Storage Instructions:
Send specimen to Lab immediately or refrigerate until transport. Specimen is stable for 72 hours refrigerated.
Test Availability:
Testing is performed Monday – Friday, 8:00am – 1pm. Results for specimens received in lab by 1pm Monday – Friday will be available same day. If same day results are required on specimens received after 1pm Monday – Friday, weekends or holidays, the ordering physician/clinician must page the Pathology and Lab Medicine resident on call at 792-2123.
Performing Laboratory Section:
Special Chemistry / UMC Main Laboratory
Send To:
UMC MAIN LABORATORY Specimen Receiving – EH319 Hospital Extension
Interpretive Data:
The detection of beta-2-transferrin (B-2 TRF) by immunofixation electrophoresis suggests the presence of CSF. The lowest level of B-2 TRF detectable by our laboratory’s immunofixation method is 0.15 mg/dL or approximately 5% of the normal total TRF level in CSF. A “none detected” or “indeterminate” result does not exclude B-2 TRF. These terms mean that if B-2 TRF is present in the specimen, it is All results are reviewed by a Clinical Pathologist or a Clinical Chemistry Faculty member.
Disclaimer: This test has not been approved by the U.S. Food and Drug Administration. The performance characteristics of this test were validated by the Special Chemistry Laboratory of the Medical University of South Carolina Hospital Authority. The testing result is not intended to be used as the only information for clinical diagnosis or management decisions. The Special Chemistry Laboratory of the Medical University of South Carolina Hospital Authority is authorized under Clinical Laboratory Improvement Amendments (CLIA) to perform high-complexity testing.