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Beta 2 Transferrin Fluid 3 34458
Test CodeBETRANS
Alias/See Also
BETRANS
CPT Codes
82397
Preferred Specimen
0.5 mL body fluid collected in a sterile, plastic, leak-proof transport tube
Minimum Volume
1
Other Acceptable Specimens
See Collection Instructions
Instructions
Draw one SST and send serum refrigerated
Transport Container
SST
Transport Temperature
R
Specimen Stability
Room temperature: 15 days
Refrigerated: 30 days
Frozen: 60 days
Refrigerated: 30 days
Frozen: 60 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Specimens collected with additives
Methodology
Electrophoresis • Immunofixation
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
Set up: Daily; Report available: 1-2 days
Reference Range
Not detected
Clinical Significance
Presence of Beta-2 Transferrin (B2T) in nose and ear secretions is indicative of cerebrospinal fluid (CSF) leakage. B2T is used as a marker of CSF leakage for the diagnosis of rhinorrhea or otorrhea as a result of head trauma, tumor, congenital malformation, surgery etc. Prompt diagnosis and localization helps localization and life-threatening CNS infections.
Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153