The Coccidioides Antibody Immunodiffusion test is used for the in vitro determination of precipitating antibodies to Coccidioides TP and F antigens. It is used as an aid in the diagnosis of Coccidioidomycosis.
The result is not intended to be used as the sole means for clinical diagnosis or patient management decisions.
Cross Reactivity/False Positive: Moderate to Low: Histoplasma, Blastomyces, and Aspergillus
Testing is performed Tuesday & Friday.
Results released: Positive: 24 hours; Negative: 72 hours
Negative: Antibody not detected
Positive: Antibody detected, will report titer up to ≥1:128
Specimen: Serum, CSF*, Plasma*
*Uncommon specimen includes incomplete validation. A ’rare specimen’ note will appear on the final report.
Serum: Collect serum specimens in serum separator tube. Allow blood to clot for 30 minutes, then centrifuge. Send serum in serum separator tube or transfer tube.
CSF, Plasma: Separator or transfer tube
Volume: 0.25 mL
Stability: Room temperature = 28 days, Refrigerated = 6 months, Frozen = indefinite
Any specimen types other than serum, CSF, plasma
Ship overnight with a cold pack.