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Aspergillus Fumigatus, IgG
MessageSendout, Mayo test code: SASP
Test Code
LAB784
Alias/See Also
Hypersensitivity pneumonitis
A fumigatus
IGG Antibodies
SASP
A fumigatus
IGG Antibodies
SASP
CPT Codes
86606
Preferred Specimen
0.5 mL serum from a gold serum gel tube
Minimum Volume
0.3 mL
Other Acceptable Specimens
Red tube
Instructions
Centrifuge and aliquot serum into a plastic vial
Transport Container
Plastic vial
Transport Temperature
Refrigerated
Specimen Stability
Refrigerated (preferred): 21 days
Frozen: 21 days
Frozen: 21 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis Mild OK; Gross OK Lipemia Mild OK; Gross OK Icterus NA Other NA
Methodology
Fluorescence Enzyme Immunoassay (FEIA)
FDA Status
Approved
Setup Schedule
Monday through Friday
Report Available
2-4 Days
Limitations
Positive results for IgG antibodies to Aspergillus fumigatus may be found in sera from healthy individuals who are sensitized to this fungus but do not display symptoms consistent with hypersensitivity pneumonitis (HP).
Negative results for IgG antibodies to A fumigatus do not exclude HP as a diagnosis; patients with clinical symptoms consistent with HP may be sensitized to a different antigen.
Elevated concentration of antibodies to A fumigatus may be also found in patients with invasive aspergillosis and cavitary lung disease.
Negative results for IgG antibodies to A fumigatus do not exclude HP as a diagnosis; patients with clinical symptoms consistent with HP may be sensitized to a different antigen.
Elevated concentration of antibodies to A fumigatus may be also found in patients with invasive aspergillosis and cavitary lung disease.
Reference Range
Included with report
Clinical Significance
Evaluation of patients suspected of having hypersensitivity pneumonitis (HP) induced by exposure to Aspergillus fumigatus.
Evaluation of patients suspected of having HP who have documented environmental exposures to high-humidity environments.
Evaluation of patients suspected of having HP who have documented environmental exposures to high-humidity environments.
Performing Laboratory
Mayo Clinic Laboratories, Rochester, Minnesota
Additional Information
Aspergillus fumigatus, IgG Antibodies, Serum
