Aspergillus Antibodies, Immunodiffusion
Test Mnemonic
ASPER
CPT Codes
- 86606 - QTY (1)
Aliases
- Aspergillus precipitins
Includes
- Aspergillus Antibodies by ID
Performing Laboratory
ARUP
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL | Serum | SST (Gold) | Refrigerated | Separate serum from cells ASAP or within 2 hours of collection and transfer into standard aliquot tube. Mark specimens plainly as "acute" or "convalescent." |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.15 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | After separation from cells: 48 hours |
| Refrigerated | After separation from cells: 2 weeks |
| Frozen | After separation from cells: 1 year (Avoid repeated freeze/thaw cycles) |
Days Performed
Sun - Sat
Turnaround Time
4 - 7 days
Methodology
| Name | Description |
|---|---|
| Immunodiffusion (ID) |
Reference Range
Special Info
This immunodiffusion test uses pooled mycelial-phase culture filtrates of Aspergillus fumigatus, Aspergillus flavus, Aspergillus niger, and Aspergillus terreus. Body fluids are unacceptable. Contaminated, hemolyzed, or severely lipemic specimens will be rejected. Mark specimens plainly as "acute" or "convalescent." This test is New York DOH approved.
Clinical Info
Not recommended for the diagnosis of invasive aspergillosis. In general, immunodiffusion measures IgG, and a positive result may suggest past infection. The test is positive in about 90% of sera from patients with aspergilloma and 50 - 70% of patients with allergic bronchopulmonary aspergillosis. A result of none detected does not exclude aspergillosis.