Arbovirus Antibody (IgG) Panel, IFA, Serum

Test Code

LAB6673

Quest Code

961

CPT Codes
86651, 86652, 86653, 86654

Includes

California Encephalitis, Eastern Equine Encephalitis, St. Louis Encephalitis, Western Equine Encephalitis

Preferred Specimen

1 mL serum collected in a serum separator tube (SST)

Minimum Volume

0.1 mL

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

Room temperature: 7 days
Refrigerated: 14 days
Frozen: 30 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Gross hemolysis • Grossly lipemic • Grossly icteric

Methodology
Immunofluorescence Assay (IFA)

Setup Schedule

Set up: Tues-Sat; Report available: 2-4 days

Limitations

False-positive results may be produced if the patient has been immunized against yellow fever or if the patient has had previous infections that produce similar, cross-reacting antibodies.

Reference Range

<1:16

Clinical Significance

Human infections caused by arboviruses are seasonal, from mid-summer to late summer. Typical geographic distributions are: Eastern Equine Encephalitis virus from New England to Texas, California Encephalitis virus in the north central states, St. Louis Encephalitis virus throughout the southern, south-western, and west central states, and Western Equine Encephalitis virus throughout the western states.

Performing Laboratory

Quest Diagnostics Nichols Institute-San Juan Capistrano, CA

33608 Ortega Highway

San Juan Capistrano, CA 92675-2042

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.