Ordering Recommendation

Diagnose and monitor B. dermatitidis. For serum specimens, refer to Blastomyes Antigen Quantitative by EIA (2002926).

New York DOH Approval Status

This test is New York state approved.

Specimen Required

Patient Preparation


Specimen Preparation

Transfer 1 mL urine to an ARUP Standard Transport Tube. (Min: 0.5 mL)

Storage/Transport Temperature


Unacceptable Conditions

Specimens preserved in boric acid.


Ambient: Unacceptable; Refrigerated: 2 weeks; Frozen: Indefinitely


Quantitative Enzyme Immunoassay


Mon, Wed, Fri


1-4 days

Reference Interval

Not Detected

Interpretive Data

The quantitative range of this assay is 1.25-200 U/mL. Antigen concentrations  less than 1.25 U/mL or greater than 200 U/mL fall outside the linear range of the assay and cannot be accurately quantified.

This EIA test should be used in conjunction with other diagnostic procedures, including microbiological culture, histological examination of biopsy samples, serology and/or radiographic evidence, to aid in the diagnosis of blastomycosis.

Cross-reactivity with other endemic mycoses (Histoplasma and Coccidioides) may occur. Positive test results should be correlated with other clinical findings and relevant exposure history.

This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.

Compliance Category

Laboratory Developed Test (LDT)


Hotline History


CPT Codes



Component Test Code* Component Chart Name LOINC
3001799 Blastomyces dermatitidis EIA, Interp 41746-9
3001800 Blastomyces Antigen, Urine 93429-9
* 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.


Blastomyces Antigen Quantitative by EIA, Urine