5 - 11 days
Test Updated:
FIDAX
ASPERGILLUS IMMUNODIFFUSION
Aspergillus flavus Antibody
Aspergillus niger Antibody
Aspergillus fumigatus Antibody
Aspergillus Precipitins
FASP
Aspergillus Ab, ID, Serum
Looking to order a test?
We’ve provided helpful links to make ordering easy.
Find a RequisitionAll specimens should be accompanied by a requisition.
Submitting SpecimensLearn about how to properly label and where to ship specimens.
Order Kits and SuppliesMLabs provides all the supplies necessary for the collection of specimens.
Test FAQVisit our provider FAQ and learn about common questions to ordering tests.
Test Overview
Immunodiffusion
Tests are performed with standardized antigens of A. flavus, A. niger and A. fumigatus. Positive results, represented by one or more precipitin lines, are indicative of fungus ball, allergic bronchopulmonary aspergillosis (ABA), or invasive aspergillosis. Generally, the finding of 3-4 bands will indicate either fungus ball or ABA, with many cases of invasive aspergillosis requiring serum concentration for demonstration of precipitin lines.
Negative
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Specimen Requirements
Collect specimen in a red top or SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate.
