Ordering Recommendation

Not recommended as a stand-alone test. Refer to Blastomyces dermatitidis Antibodies by EIA with Reflex to Immunodiffusion, Serum (3000236).

Mnemonic

BLASTO PPT

Methodology

Qualitative Immunodiffusion

Performed

Sun-Fri

Reported

3-6 days

New York DOH Approval Status

This test is New York DOH approved.

Specimen Required

Patient Preparation
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: 0.15 mL)

Storage/Transport Temperature

Refrigerated.

Unacceptable Conditions

Body fluids.

Remarks
Stability

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.

Compliance Category

FDA

Note

This test uses a partially purified "A" antigen of Blastomyces dermatitidis.

Hotline History

N/A

CPT Codes

86612

Components

Component Test Code* Component Chart Name LOINC
0050172 Blastomyces dermatitidis Abs, Precipitin 5058-3
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.

Aliases

  • Blastomyces Antibody by Immunodiffusion, Serum
  • Blastomyces Precipitin
  • Blastomycosis
  • Immunodiffusion Serology for Fungi
Blastomyces dermatitidis Antibodies by Immunodiffusion