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MVista® Histoplasma Quantitative Antigen, EIA

Test Code
58792


CPT Codes
87385

Preferred Specimen
0.5 mL urine collected in a sterile, leak-proof container


Minimum Volume
Urine, BAL or other body fluids: 0.5 mL
CSF: 0.8 mL
Serum or plasma: 1.2 mL


Other Acceptable Specimens
1.2 mL plasma collected in an EDTA (lavender-top) tube, sodium heparin (green-top) tube, or 3.2% sodium citrate (light blue-top) tube • 1.2 mL serum • 0.8 mL CSF submitted in a sterile, leak-proof container • 0.5 mL bronchoalveolar lavage or body fluid submitted in a sterile, leak-proof container


Instructions

Indicate specimen type and date drawn on test request form. Two unique patient identifiers required on specimen container. Ship to arrive Monday-Friday using a next day delivery service or 2nd day service. Do not ship by first class mail. List all antifungal agents patient is receiving.

Note: Interfering substances and cross-reactivities include sodium hydroxide and sputolysin. Cross-reactivity occurs between blastomycosis and histoplasmosis and in paracoccidioidomycosis, penicillosis, coccidioidomycosis, aspergillosis and sporotrichosis.

Serum: Collect serum specimens in serum separator or red top tube. Allow blood to clot for 30 minutes, then centrifuge. Pipette serum into a plastic screw cap vial.

Plasma: Collect plasma specimens in an EDTA, heparin or sodium citrate tube. Centrifuge for 15 minutes and pipette plasma into a plastic screw cap vial.

Urine/CSF/BAL/Other Body Fluid: Submit urine, CSF, BAL and all other body fluids in a sterile screw cap container



Transport Temperature
Room temperature


Specimen Stability
Room temperature: 14 days
Refrigerated: 14 days
Frozen: Indefinitely


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
If specimen is too viscous to pipette • Tissue • Sputum • Bronchial brushings • Stool • Fine needle aspiration • Biopsy • Tracheal or bone marrow aspirate stored in transport media • Fixative or isolator tubes


Methodology
Enzyme Immunoassay (EIA)

FDA Status
This test was developed and its performance characteristics determined by MiraVista Diagnostics. It has not been cleared or approved by the FDA; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.

Setup Schedule
Set up: Mon-Fri; Report available: 3-5 days


Reference Range
See Laboratory Report


Clinical Significance
The MVista® histoplasma quantitative antigen test aids the diagnosis of histoplasmosis. Monitoring the histoplasmosis helps determine when treatment can be stopped and to diagnose relapse.




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.