What is this test?
The catalogue title is internally inconsistent: it begins with EBV EA IgG but gives IgM in parentheses. The description identifies IgG antibodies to early antigen; confirm which antibody class the laboratory will actually measure.
Why might it be ordered?
- As an adjunct to VCA IgM, VCA IgG, and EBNA in an atypical or unclear EBV antibody profile.
- When a clinician has a specific reason to assess antibodies to EBV early antigen.
- Not as a stand-alone way to distinguish active from past EBV infection.
What sample is needed?
A blood specimen is used. Before collection, ask the laboratory to confirm whether the order is EA IgG or EA IgM because of the catalogue inconsistency.
How should you prepare?
Special dietary preparation is usually unnecessary. Report when symptoms began and which other EBV markers have already been tested.
How should you understand the result?
If EA IgG is actually measured, reactivity can occur in active infection, but some healthy people remain reactive for years. Interpret it with VCA IgM, VCA IgG, EBNA, and symptoms.
Sources and editorial status
This patient-facing text is an editorial draft. It should be approved by a laboratory physician before official publication.