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Beta-2 Transferrin

Mnemonic:    [Unlist Lab]
Name:    Beta-2 Transferrin
Specimen:     Collect serum AND aural or nasal fluid in a sterile container.

Plasma is unacceptable.
Transport Temp:    Refrigerated
Spec Stability:    Stable 3 days refrigerated.
Ref Lab/Code:    ARUP 0050047
  Method:    Qualitative Immunofixation Electrophoresis
Note:    Interpretive Data: Detection of a beta-2 transferrin band by IFE is diagnostic for the presence of cerebrospinal fluid (CSF). This test is useful in the differential diagnosis for CSF otorrhea or CSF rhinorrhea. Beta-2 transferrin is not detected by this methodology in normal serum, tears, saliva, sputum, nasal, or aural fluid.