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25581 Blastomyces Quantitative Antigen, Urine (316)

Blastomyces Quantitative Antigen, Urine (316)
Test Code: BLUAGSO
Synonyms/Keywords

​Blastomyces Dermatitidis QNT AG

Useful For

​​Aid in the diagnosis of blastomycosis

Monitor treatment to help determine when treatment can be discontinued

Aid in diagnosis of relapse

Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Specimen Minimum Volume
(allows for 1 repeat)
​No ​Urine ​Sterile leak-proof container ​0.5 mL
Collection Processing Instructions
​Ship to arrive Monday through Friday using a next day delivery service.  May be shipped ambient.
Specimen Stability Information
Specimen Type Temperature Time
Urine ​ ​ ​Room Temperature ​ 14 days
​Refrigerate (preferred) ​ 14 days
​Frozen ​Indefinite
Rejection Criteria
If specimen is too viscous to pipette​
Tissue, Sputum, Bronchial Brushings, Stool, FNA, Biopsy, Tracheal or Bone Marrow Aspirate
Stored in Transport Media, Fixative or Isolator Tubes
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Miravista Diagnostics Monday through Friday ​1 day ​Quantitative Sandwich Enzyme Immunoassay (EIA)
Reference Lab
Test Information

​Cross-reactions are seen with histoplasmosis, paracoccidioidomycosis, penicilliosis, less frequently in coccidiooidomycosis, rarely in aspergillosis and possibly sporotrichosis.  Sputolysin, sodium hydroxide and potassium hydroxide treatment degrade the analyte detected in the assay.  Sputolysin, sodium hydroxide and potassium hydroxide treatment degrade the analyte detected in the assay.

Negative results do not exclude blastomycosis. Testing of both urine and serum offers the highest sensitivity. Failure of the antigen to rise does not exclude relapse.

The result is not intended to be used as the sole means for clinical diagnosis or patient management decisions.

*New positives may require confirmation

Reference Range Information

None detected

Interpretation

Positive Below the Limit of Quantification: Results above the cutoff for positivity, but below 0.2 ng/mL fall outside the linear range of the assay. These results are positive, but not accurately quantifiable. Results will be confirmed and reported the next business day.

Positive: 0.2-14.7 ng/mL

Positive Above the Limit of Quantification: Results greater than 14.7 ng/mL fall outside the linear range of the assay. These results are positive, but not accurately quantifiable.

Outreach CPTs
CPT Modifier
(if needed)
Quantity Description Comments
​87449
Synonyms/Keywords

​Blastomyces Dermatitidis QNT AG

Ordering Applications
Ordering Application Description
​COM​Blastomyces Quant Ag, Urine
​Portal​Blasto Quant Ag, Urine (316)
​Cerner​Blastomyces Quantitative Antigen, Urine (316)
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Specimen Minimum Volume
(allows for 1 repeat)
​No ​Urine ​Sterile leak-proof container ​0.5 mL
Collection Processing
​Ship to arrive Monday through Friday using a next day delivery service.  May be shipped ambient.
Specimen Stability Information
Specimen Type Temperature Time
Urine ​ ​ ​Room Temperature ​ 14 days
​Refrigerate (preferred) ​ 14 days
​Frozen ​Indefinite
Rejection Criteria
If specimen is too viscous to pipette​
Tissue, Sputum, Bronchial Brushings, Stool, FNA, Biopsy, Tracheal or Bone Marrow Aspirate
Stored in Transport Media, Fixative or Isolator Tubes
Useful For

​​Aid in the diagnosis of blastomycosis

Monitor treatment to help determine when treatment can be discontinued

Aid in diagnosis of relapse

Reference Range Information

None detected

Interpretation

Positive Below the Limit of Quantification: Results above the cutoff for positivity, but below 0.2 ng/mL fall outside the linear range of the assay. These results are positive, but not accurately quantifiable. Results will be confirmed and reported the next business day.

Positive: 0.2-14.7 ng/mL

Positive Above the Limit of Quantification: Results greater than 14.7 ng/mL fall outside the linear range of the assay. These results are positive, but not accurately quantifiable.

For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Miravista Diagnostics Monday through Friday ​1 day ​Quantitative Sandwich Enzyme Immunoassay (EIA)
Reference Lab
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)
Quantity Description Comments
​87449
For most current information refer to the Marshfield Laboratory online reference manual.