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HelpTest ID FINA NAbFeron (IFNB-1) Neutralizing Antibody Test
Useful For
Detection of antibodies to interferon-B-1
Method Name
Viral cytopathic effect assay
Reporting Name
NAbFeron (IFN-B) AntibodySpecimen Type
SerumDraw blood in a plain red-top tube(s), serum gel tube is acceptable. Spin down and send 2 mL of serum refrigerated in a plastic vial.
Note: Sample needs to be collected either before treatment with interferon or more than 24 hours following the most recent dose. Patient should not be on steroid therapy for at least two weeks prior to testing.
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Refrigerated (preferred) | 28 days |
| Frozen | 365 days | |
| Ambient | 72 hours |
Reference Values
Normal titer: <1:20
Mild/Moderate titer: ≥ 1:20 - ≤ 1:100
High titer: >1:100
Day(s) Performed
Monday through Friday
Report Available
14 - 21 daysPerforming Laboratory
Athena DiagnosticsTest Classification
This test was developed and its performance characteristics have been determined by Athena Diagnostics. Performance characteristics refer to the analytical performance of the test.CPT Code Information
86382