MVista Histoplasma Ag Quantitative, Spinal Fluid
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 ng/mL range
Results above the limit of detection by below 0.4 ng/mL are reported as 'Positive, Below the Limit of Quantification'.
Results above 19.0 ng/mL are reported as 'Positive, Above the Limit of Quantification'.
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.