Ordering Recommendation

Recommended test if serology is used to aid in the diagnosis of blastomycosis. 

Mnemonic
BLST R SER
Methodology

Semi-Quantitative Enzyme-Linked Immunosorbent Assay/Qualitative Immunodiffusion

Performed

Sun-Sat

Reported

2-5 days

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect

Serum Separator Tube (SST).

Specimen Preparation

Separate from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.3 mL) Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens.

Storage/Transport Temperature

Refrigerated.

Unacceptable Conditions

Contaminated, hemolyzed, or severely lipemic specimens.

Remarks

Mark specimens plainly as acute or convalescent.

Stability

After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)

Reference Interval
Test Number
Components
Reference Interval
3000235 Fungal Antibodies with Reflex to Blastomyces dermatitidis Antibodies by Immunodiffusion 0.9 IV or less: Negative
1.0-1.4 IV: Equivocal
1.5 IV or greater: Positive
0050172 Blastomyces dermatitidis Antibodies by Immunodiffusion None Detected

Interpretive Data

Refer to report.

No compliance statements are in use for this test.

Note

Negative fungal serology does not rule out the possibility of current infection. If Blastomyces antibodies are equivocal or positive by EIA then Blastomyces Immunodiffusion will be added. Additional charges apply.

Hotline History
N/A
CPT Codes

86612; if reflexed, add 86612

Components
Component Test Code* Component Chart Name LOINC
3000237 Blastomyces Antibody by EIA, SER 16471-5
* 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 dermatitidis Antibodies by EIA with Reflex to Immunodiffusion, Serum