Epstein-Barr Viral Capsid Antigen (VCA) Antibody (IgA)

Test Code

38015

CPT Codes
86665

Preferred Specimen

1 mL serum

Minimum Volume

0.25 mL

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

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

Methodology
Indirect Immunofluorescence Assay

FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clincial purposes.

Setup Schedule

Sets up 5 days a week.

Report Available

Reports in 1 to 3 days.

Clinical Significance

VCA IgA titers ≥1:80 often indicate chronic or reactivated EBV infection, whereas titers of 1:10, 1:20, or 1:40 usually indicate past infection.
Elevated titers of VCA IgA are found in most patients with nasopharyngeal carcinoma; titers decrease with successful treatment.

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.