Histoplasma Galactomannan Antigen Quantitative by EIA, Urine
Also known as: HISTOGM U
Use
This test aids in the diagnosis of histoplasmosis and may also detect blastomycosis and coccidioidomycosis. It is used in conjunction with other diagnostic procedures such as microbiological culture, histological examination of biopsy samples, and radiographic evidence. Testing tends to be recommended alongside Histoplasma Antibodies by Complement Fixation and Immunodiffusion and Histoplasma Antigen Quantitative by EIA, Serum.
Special Instructions
The test involves the quantitative determination of antigen levels. It is recommended to correlate positive test results with other clinical findings and relevant exposure history to ensure accurate diagnosis. The test has been developed by ARUP Laboratories and is performed in a CLIA-certified laboratory.
Limitations
Cross-reactivity with other endemic mycoses, such as Blastomyces and Coccidioides, may occur. The quantitative range of this assay is 0.8-24.0 ng/mL. Antigen concentrations between 0.4-0.7 ng/mL or greater than 24.0 ng/mL fall outside the linear range and cannot be accurately quantified. The test should be used together with other diagnostic methods to confirm histoplasmosis.
New York Approved
Methodology
Immunoassay (EIA)
Biomarkers
LOINC Codes
- 44524-7
- 48952-6
Result Turnaround Time
1-2 days
Related Documents
For more information, please review the documents below
Specimen
Urine
Volume
2 mL
Minimum Volume
Not provided
Container
ARUP Standard Transport Tube
Collection Instructions
Collect random urine and transfer to ARUP Standard Transport Tube.
Causes for Rejection
Specimens other than urine. Urine in boric acid.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 24 hours |
| Refrigerated | 2 weeks |
| Frozen | 2 weeks |
Other tests from different labs that may be relevant