Blastomyces Antibody, Immunodiffusion

Test Codes

EPIC: LAB1232116, Beaker: Blastomyces, Quest: 932

Department

Send Outs

Specimen Collection Criteria

Collect (preferred specimen): One Gold-top SST tube.

Also acceptable: One plain Red-top tube.

Physician Office/Draw Specimen Preparation

Let specimen clot 30-60 minutes then centrifuge to separate serum from cells. Transfer serum to plastic transport tube and maintain at room temperature (20-26°C or 68-78.8°F) prior to transport.

Preparation for Courier Transport

Transport: 1.0 mL serum, at room temperature (20-26°C or 68-78.8°F). (Minimum: 0.2 mL)

Rejection Criteria

• Gross hemolysis.
• Grossly lipemic.
• Grossly icteric.
• Specimens not collected and processed as indicated.

In-Lab Processing

Let specimen clot 30-60 minutes then centrifuge to separate serum from cells. Transfer serum to plastic transport tube and maintain at room temperature (20-26°C or 68-78.8°F) prior to transport.

Transport: 1.0 mL serum, at room temperature (20-26°C or 68-78.8°F). (Minimum: 0.2 mL)

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): 7 days
Refrigerated (2-8°C or 36-46°F): 14 days
Frozen (-20°C/-4°F or below): 30 days

Specimen Storage in Department Prior to Disposal:

Specimen retention time is determined by the policy of the reference laboratory. Contact the Send Outs Laboratory with any questions.

Laboratory

Sent to Quest Diagnostics, Wood Dale, IL.

Performed

Monday, Wednesday, Friday.
Results available 3-6 days.

Reference Range

Negative.

Test Methodology

Immunodiffusion (ID)

Interpretation

See report.

Clinical Utility

Blastomycosis, caused by the fungus Blastomyces dermatitidis, occurs most commonly in men ages 20-69 years. Infection may be transient or lead to chronic, progressive pulmonary disease.

CPT Codes

If reflexed 86612.
LOINC:  EIA 7816-2, Precipitin 5058-3

Contacts

Last Updated

12/17/2025