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Histoplasma capsulatum Antibody, by Complement Fixation
| Item | Value |
|---|---|
| Approval req'd? | No |
| Available Stat? | No |
| Test code | HICFB |
| Test group | Histoplasma |
| Performed by | Focus via Quest |
| Sendout? | Yes |
| Method | Complemnent fixation |
| Collection Instructions | Collect samples prior to performing fungal skin testing which can significantly increase antibody titers in sensitized individuals making results of this test uninterpretable. |
| 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 |
| UCSF Rejection Criteria | Hemolysis, lipemia |
| Processing notes | Order Quest test # 938X. For B&T patients order LabCorp test # 164319 |
| Ref Lab Rejection Criteria | Hemolysis, lipemia |
| Units | Titer |
| Normal range | < 1:8 |
| Stability | Room temperature 1 week, refrigerated 2 weeks, frozen at -20C 1 month. |
| Turn around times | Test set up Monday - Friday, Turn around time 3-5 days |
| Additional information | Patients should be screened by immunodiffusion before requesting complement fixation. Titers to both mycelial and yeast phase antigens are reported, yeast phase antigen being more sensitive but less specific than mycelial phase antigen. Cross reactions frequently occur with Blastomyces and Coccidioides. |
| CPT coding | 86698-90 x2 |
| LOINC code | 20573-2 |
| Last Updated | 10/2/2010 11:53:08 AM |
| Entry Number | 1258 |
If you have additional questions regarding this test, please call: 415-353-1667