Test Overview
Test Methodology

Immunofluorescence Assay (IFA)

Test Usage

Aiding the diagnosis of arboviral encephalitis (California [LaCrosse], St. Louis, Eastern equine and Western equine encephalitis).

Reference Range *

IgG: <1:10; IgM <1:10

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Monday - Friday May through October
Monday, Wednesday, Friday November through April
Analytic Time

3 - 7 days

Soft Order Code
ABOPC
Synonyms
    Laboratory
    Sendout
    Reference Laboratory
    Mayo ABOPC
    Section
    Special Testing
    Specimen Requirements
    Collection Instructions

    Collect specimen in a sterile container. It is preferred not the send the screw capped tubes in the LP collection kit, as they have a tendency to leak. It can also be transferred in Specimen Processing if no other tubes are available. Send to Specimen Processing refrigerated.

    Normal Volume
    0.7 mL
    Minimum Volume
    0.7 mL
    Additional Information

    Test includes California Virus (La Crosse) Encephalitis, St. Louis Encephalitis, Eastern Equine Encephalitis, and Western Equine Encephalitis IgG and IgM Antibodies. Test performed by Mayo Clinic Laboratories

    Billing
    CPT Code
    86651 x2, 86653 x2, 86652 x2, 86654 x2
    Fee Code
    AA528, AA529, AA530, AA531, AA532, AA533, AA534, AA535
    NY State Approved
    No