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HelpTest Code HIBAG Histoplasma and Blastomyces Antigen, Enzyme Immunoassay, Serum
Specimen Required
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 1.5 mL
Collection Instructions: Centrifuge and aliquot serum into a plastic vial.
Useful For
Diagnosing Histoplasma capsulatum or Blastomyces dermatitidis infection without differentiation between the organisms
Monitor antigen levels following initiation of antifungal treatment
Method Name
Enzyme Immunoassay (EIA)
Reporting Name
Histoplasma/Blastomyces Ag, EIA, SSpecimen Minimum Volume
1.2 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Refrigerated (preferred) | 28 days | |
| Frozen | 28 days | ||
| Ambient | 72 hours |
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
| Gross icterus | Reject |
| Heat-inactivated specimen | Reject |
Reference Values
Histoplasma/Blastomyces Antigen Result:
Not Detected
Histoplasma/Blastomyces Antigen Value:
Not Detected
Detected: <1.5 ng/mL
Detected: 1.5-25.0 ng/mL
Detected: >25.0 ng/mL
Reference values apply to all ages.
Day(s) Performed
Monday through Saturday
Report Available
Same day/1 to 3 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
87449