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Galactomannan Antigen
| Item | Value | ||||
|---|---|---|---|---|---|
| Approval req'd? | None required for Serum or BAL samples. CSF samples require approval, call x31268 | ||||
| Available Stat? | No | ||||
| Test code | GMAN | ||||
| Performed by | Viracor | ||||
| Sendout? | Yes | ||||
| Method | EIA | ||||
| Collection Instructions | To avoid environmental contamination cap tube immediately after collection and do not re-open. Bring samples to lab for processing asap | ||||
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| Amount to Collect |
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| Sample type | Serum, Bronchalveolar lavage (BAL) CSF by approval only, call x31268 Sputum samples are not acceptable. |
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| Preferred volume |
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| Min. Volume |
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| UCSF Rejection Criteria | Sputum received | ||||
| Processing notes | Serum: Do not open primary tube. Centrifuge sample within 2 hours of collection to pellet cells under gel and freeze entire tube at -20C until shipped. Sample is shipped frozen BAL: Do not open collection container except in Biosafety cabinet. Freeze sample at -20C upon receipt. Sample is shipped frozen Order Viracor test #1600 |
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| Units | Index | ||||
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| Synonyms | Aspergillus Ag | ||||
| Turn around times | Set up 6x per week. Turnaround 3-5 days | ||||
| Additional information | This assay detects a cell wall antigen of Aspergillus species and other fungi. it may be helpful in identifying patients with disseminated Aspergillosis. Sensitivity 67-100%, Specificity 81-99%. However, given low incidence of disseminated aspergillosis, the positive predictive value is low unless the pre-test probability is relatively high. Should be limited to febrile, neutropenic patients with pulmonary infiltrates in whom no other cause for fever can be found. | ||||
| CPT coding | 87305-90 | ||||
| LOINC code | 35383-9 | ||||
| Last Updated | 5/1/2013 11:45:01 AM | ||||
| Entry Number | 409 |
If you have additional questions regarding this test, please call: 415-353-1667