ARUP's Laboratory Test Directory

Blastomyces Antibody by ID : 0050172

Mnemonic: BLASTO PPT

Methodology: Qualitative Immunodiffusion
Performed: Sun-Fri
Reported: 2-4 days
Specimen Required: Collect: Serum separator tube.

Specimen Preparation: Separate serum from cells ASAP or within 2 hours of collection. Transfer 0.5 mL serum to an ARUP Standard Transport Tube. (Min: 0.1 mL)

Storage/Transport Temperature: Refrigerated.

Unacceptable Conditions: Body fluids.

Stability (collection to initiation of testing): After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
Reference Interval:
None detected.
Interpretive Data: A positive result may suggest active or recent infection. The test is positive in about 80% of cases. Cross-reactions occur, especially with histoplasmosis. A negative test (none detected) does not exclude blastomycosis.
Note: This test uses a partially purified "A" antigen of Blastomyces dermatitidis.
CPT Code(s): 86612
Cross References: Blastomyces Precipitin (Blastomyces Antibody by ID)