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Test Name:
Blastomyces dermatitidis Antigen by EIA
- SBMF No:
45095 - Performance Lab Name:
MiraVista Diagnostics - Test Mnemonic:
BLASTO AG - ABN:
Not required - CPT Code:
87449 - LOINC Code:
19146-0 - Spec Type:
Urine, CSF, Bronchial fluid, or other body fluid - Spec Container:
Sterile container with tightly fitting lid - Alt Spec Type:
Serum - Alt Spec Container:
Red top (serum) tube - Pref Vol:
2.0 mL - Min Vol:
2.0 mL - Fasting:
No - Spec Collect:
Blood: Routine venipuncture
Urine sample: Clean catch or catheterization
Other samples: Collected by physician - Spec Process:
Blood in red top tubes: - Clot 30 minutes - Centrifuge 15 minutes - Transfer serum to separate plastic tube
All other samples, refrigerate - Spec Store Transport:
Refrigerated - Methodology:
Enzyme Immunoassay (EIA) - Use:
Rapid method for the diagnosis of blastomycosis by antigen detection. - Clinical Significance:
Sensitivity is greatest in urine, but antigen also may be detected in other body fluids. Antigen decline with therapy and increase with relapse, offering a method to monitor the effect of treatment and diagnose relapse. - Reference Range:
Less than 1.0 EU (EIA units) - Additional Test Info:
Heterophile antibodies and rheumatoid factor can cause positive interference. Cross reactions due to closely related antigenic epitopes are seen in patients with histoplasmosis, paracoccidioidomycosis, and penicilliosis. Rare cross reactions have been seen in patients with aspergillosis and cryptococcosis. - Day Run:
Mon-Fri - Time Reported:
Within one business day - Test Type:
INFECTIOUS ORGANISM
