Reportable ranges for Histoplasma IgG, IgM Antibody EIA sent to Mira Vista laboratories. The change outlined below will be effective beginning January 3, 2025.
The updated reporting ranges for the Histoplasma IgG, IgM Antibody EIA are designed to enhance clinical interpretation of results, particularly in the lower range of the assay, following a retrospective review of clinical data by our clinicians’ group.
By raising the interpretive criteria, we now classify values <10 EU as negative (up from <8 EU). The intermediate range has been adjusted to 10.0 EU to 19.9 EU (previously 8.0–9.9 EU), while positive results will be reported for values ≥20.0 EU.
These changes will provide clearer distinctions between negative, intermediate, and positive results, ultimately improving the assay's utility in clinical practice.
NEW REFERENCE RANGES EFFECTIVE JANUARY 3, 2025
Negative: <10.0 EU
Intermediate: 10.0 – 19.9 EU
Positive: ≥20.0 EU
For questions please contact: Nicole Shankster, Accreditation/Referral Testing Specialist at 260-266-1509, or Nicole.shankster@parkview.com