Test ID: Z1540
CPT code: 86335
LOINC: 13876-8
Specimen Type: Sterile container Fluid
Frequency: 4 – 8 days
Instructions: 2 mL Aural or nasal fluid from Sterile container, Refrigerated. Min 1 mL.
Text: Aids in diagnosis of CSF leak. 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.
Methodology: Immunofixation Electrophoresis