FHIST - Clinical: MVista Histoplasma Ag Quantitative, Serum

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Test ID: FHIST    
MVista Histoplasma Ag Quantitative, Serum

Reference Values Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.

Reference interval:         None Detected


Results reported as ng/mL in 0.4 – 19.0 ng/mL range


Results above the limit of detection, but below 0.4 ng/mL are reported as 'Positive, Below the Limit of Quantitation'.


Results above 19.0 ng/mL are reported as 'Positive, Above the Limit of Quantitation'.


Cautions Discusses conditions that may cause diagnostic confusion, including improper specimen collection and handling, inappropriate test selection, and interfering substances

Interfering Substances & Cross-Reactivities:

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