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Influenza B antibody
| Item | Value |
|---|---|
| Approval req'd? | No |
| Available Stat? | No |
| Test code | FLUB |
| Test group | Influenza |
| Performed by | Quest |
| Sendout? | Yes |
| Method | Complement fixation |
| Container type | Gold top or Red top |
| Amount to Collect | 2 mL blood |
| Sample type | Serum |
| Preferred volume | 1 mL serum |
| Min. Volume | 0.5 mL serum |
| Processing notes | Refrigerate serum at 4C. Order Quest test #52308P |
| Units | titer |
| Normal range | Negative titer < 1:8 |
| Synonyms | Flu B |
| Stability | Room temperature 1 week, refrigerated 2 weeks, frozen at -20C 1 month. |
| Turn around times | Performed 5x per week. Turnaround 3-5 days |
| Additional information | Influenza Type A and B viruses cause seasonal outbreaks of "the flu". Each winter, approximately 10-20% of the population are infected. Both Type A and B are included in the flu vaccine. Single titers of ≥ 1:64 indicative of recent infection. Titers of 1:8 to 1:32 may be indicative of either past or recent infection, since CF antibody levels persist for only a few months. A four-fold or greater increase in titer between acute and convalescent specimens confirms the diagnosis. See also entry for Viral Serology and Respiratory Virus DFA |
| CPT coding | 8671-90 |
| LOINC code | 5230-8 |
| Last Updated | 10/2/2010 11:53:04 AM |
| Entry Number | 1196 |
If you have additional questions regarding this test, please call: 415-353-1667