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.
Transport fluid in a sterile vial/container without preservative
Refrigerated (preferred) - 2 weeks
Ambient - 2 weeks
Frozen - 2 weeks
Immunofixation Electrophoresis (IFE)