Biomarker Reference · Asp fum IgG
Aspergillus fumigatus IgG antibody (Asp fum IgG) is a clinical biomarker used in environmental-mould assessment. IgG antibodies to Aspergillus fumigatus reflect adaptive immune memory following exposure or sensitisation to this ubiquitous environmental mould. It is measured in 1 laboratory test on BiomarkersLabs.com.
IgG antibodies to Aspergillus fumigatus reflect adaptive immune memory following exposure or sensitisation to this ubiquitous environmental mould. Elevated IgG titres may indicate chronic or repeated inhalation, though detection does not distinguish between benign colonisation, allergic bronchopulmonary aspergillosis, and invasive disease — clinical context and additional serological and imaging findings are essential for that distinction.
Aspergillus IgG is a marker of immunological memory to fungal antigens. In the context of suspected mould exposure, a positive result supports the hypothesis of significant exposure history, but must be interpreted alongside symptoms, IgE serology for type-I hypersensitivity, eosinophil count, imaging, and galactomannan or beta-D-glucan for invasive disease when appropriate.
Reference ranges vary by laboratory and assay platform. Interpret in context of the issuing laboratory's stated range.
1 test on BiomarkersLabs.com include this biomarker.
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