The Blastomyces Antibody Immunodiffusion test is used for the in vitro determination of precipitating antibodies to Blastomyces dermatitidis. It is also used as an aid in the diagnosis of Blastomycosis.
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, Coccidioides, and Aspergillus
Testing is performed Tuesdays and Fridays.
Results released: Positive: 24 hours; Negative: 72 hours
Antibody not detected
Negative: Antibody not detected
Positive: Antibody detected
Specimens: 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 in serum separator tube or transfer tube.
CSF, Plasma: Submit CSF and plasma in a leak-proof plastic tube.
Stability: Room temperature = 28 days, Refrigerated = 6 months, Frozen = indefinite
Any specimen types other than serum.
Ship overnight with cold pack