| Ordering Code | 4979 |
|---|---|
| Test Name | EBV Antibody to Early Ag, IgG |
| Alias | Epstein Barr Virus Ab to Early Ag, IgG EBV Early Ag Diffuse Ab |
| 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 January 22, 2025.
| Component | Age | Male Norm | Male Critical Low | Male Critical High | Female Norm | Female Critical High | Female Critical Low | Units | Add'l info |
|---|---|---|---|---|---|---|---|---|---|
| EBV EA (D) Ab IgG | ALL | AI | Interpretation: Note1 |
Note1:
Interpretation:Antibody Index (AI) Explanation of Test Results
------------------- ---------------------------
<=0.8 Negative
0.9-1.0 Equivocal
>=1.1 Positive
IgG antibodies to EA are frequently present in acute IM and generally
absent in convalescence. The presence of antibodies in otherwise
healthy individuals usually indicates reactivation, especially when
paired with rising Antibody titer to Nuclear Antigen. EA Antibody
levels tend to rise and peak after 3-4 weeks, then decline and
usually dissipate after 6 months. Antibody to Nuclear Antigen
usually persists for life.
Antibody Index (AI) values reflect qualitative changes in antibody
concentration that cannot be directly associated with clinical
condition or disease state.
See report..