Blastomyces Antigen
Test Mnemonic
BLAS
CPT Codes
- 87449 - QTY (1)
Performing Laboratory
Quest Diagnostics (Chantilly)
FDA Category
Laboratory Developed Test
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 2 mL | Serum | SST (Gold) | Ambient | Centrifuge and transfer serum to standard plastic aliquot tube. Indicate source. List all antifungal agents patient is receiving. |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 2 mL | Serum | No additive (Red) | Ambient | Centrifuge and transfer serum to standard plastic aliquot tube. Indicate source. List all antifungal agents patient is receiving. | |
| 2 mL | Cerebrospinal fluid (CSF) | Sterile container | Ambient | Use a sterile, leak-proof container. Indicate source. List all antifungal agents patient is receiving. | |
| 2 mL | Bronch (BAL) | Sterile container | Ambient | Use a sterile, leak-proof container. Indicate source. List all antifungal agents patient is receiving. | |
| 2 mL | Plasma | EDTA (Lavender) | Ambient | Centrifuge and transfer plasma to standard plastic aliquot tube. Indicate source. List all antifungal agents patient is receiving. | |
| 2 mL | Plasma | Sodium heparin (Green) | Ambient | Centrifuge and transfer plasma to standard plastic aliquot tube. Indicate source. List all antifungal agents patient is receiving. | |
| 2 mL | Plasma | Sodium citrate (Lt. Blue) | Ambient | Centrifuge and transfer plasma to standard plastic aliquot tube. Indicate source. List all antifungal agents patient is receiving. | |
| 2 mL | Fluid, body | Sterile container | Ambient | Use a sterile, leak-proof container. Indicate source. List all antifungal agents patient is receiving. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| Other | Serum/plasma: 1.2 mL; BAL/body fluid: 0.5 mL; CSF: 0.8 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Refrigerated | 14 days |
| Ambient | 14 days |
| Frozen | Indefinitely |
Days Performed
Mon - Fri
Turnaround Time
2 - 3 days
Methodology
| Name | Description |
|---|---|
| Enzyme Immunoassay (EIA) |
Reference Range
Special Info
Source must be indicated. List all antifungal agents patient is receiving. Separate orders are required for each specimen. Rejection criteria: Specimen that is too viscous to pipette; Tissue, biopsy, sputum, bronchial brush, tracheal aspirate, FNA, bone marrow aspirate, stool or samples in transport media, fixative or Isolator tubes
Clinical Info
Cautions: Sodium hydroxide and sputolysin. Cross-reactivity occurs between blastomycosis and histoplasmosis and in paracoccidioidomycosis, penicillosis, coccidioidomycosis, aspergillosis, and sporotrichosis.
