| Ordering Code | 486 |
|---|---|
| Test Name | EBV Antibody to VCA, IgM |
| Alias | Epstein Barr Virus Ab to VCA, IgM |
| Preferred Specimen | Serum |
| Preferred Container | SST (Gold) |
| Other Specimen/Container | Serum in Plain (Red) |
| Optimum Volume | 0.5 mL |
| Transport Requirements | Oahu: Refrigerated Airline: Refrigerated |
| Specimen Stability | Ambient: 8 Hours Refrigerated: 7 Days Frozen: 3 Months |
| Rejection Criteria | Specimen older than stability limits, Grossly hemolyzed, Insufficient quantity |
| Avail. Stat | NO |
| Analytic Time | Up to 4 Days |
| Methodology | Multiplex Flow Immunoassay |
Reference range(s)
The reference ranges listed below are valid on this date of July 5, 2025.
| Component | Age | Male Norm | Male Critical Low | Male Critical High | Female Norm | Female Critical High | Female Critical Low | Units | Add'l info |
|---|---|---|---|---|---|---|---|---|---|
| EBV Antibody to VCA, IgM | ALL | AI | Interpretation: Note1 |
Note1:
Interpretation:Antibody Index (AI) Explanation of Test Results
------------------- ---------------------------
<=0.8 Negative
0.9-1.0 Equivocal
>=1.1 Positive
IgM antibodies to VCA are normally present in acute IM and generally
absent in convalescence. The presence of antibodies in otherwise
healthy individuals usually indicates immunological exposure either
as silent primary infection or reactivation. Antibody levels tend to
rise and peak after 3-4 weeks, then decline and usually dissipate
after 2-3 months.
Antibody Index (AI) values reflect qualitative changes in antibody
concentration that cannot be directly associated with clinical
condition or disease state.
See report..