Ordering Recommendation

Do not use to diagnose Epstein-Barr virus infectious mononucleosis. May aid in the detection and prognosis of nasopharyngeal carcinoma.

New York DOH Approval Status

This test is New York state approved.

Specimen Required

Patient Preparation

Serum separator tube.

Specimen Preparation

Separate serum from cells ASAP or within 2 hours of collection. Transfer 0.5 mL serum to an ARUP Standard Transport Tube. (Min: 0.1 mL) Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens. Mark specimen plainly as "acute" or "convalescent."

Storage/Transport Temperature


Unacceptable Conditions

Contaminated or heat-inactivated specimens. Grossly hemolytic, icteric or, lipemic specimens.


After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 30 days


Semi-Quantitative Enzyme-Linked Immunosorbent Assay




1-8 days

Reference Interval

Effective November 15, 2021

Reference Interval
8 U or less Not Detected
9-11 U Indeterminate - Repeat testing in 10-14 days may be helpful.
12 U or greater Detected

Interpretive Data

This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.

Compliance Category

Laboratory Developed Test (LDT)


Hotline History


CPT Codes



Component Test Code* Component Chart Name LOINC
0051626 EBV Antibody To Viral Capsid Antigen IgA 31369-2
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.


  • EBV Antibodies
  • EBV VCA-IgA Ab
  • Infectious Mononucleosis
Epstein-Barr Virus Antibody to Viral Capsid Antigen, IgA