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Epstein-Barr Virus Nuclear Antigen (EBNA) Antibody (IgG) : 8564
Test CodeEBVNA or 8564
Alias/See Also
EBV Antibody; EBNA; EBV; EBV NA; EBV Nuclear Antigen Ab; EBV Past Infection; Epstein-Barr Nuclear Antigen Ab; Epstein-Barr Virus EBNA
CPT Codes
86664
Instructions
Serum separator tube (gold top preferred) or a plain red top tube.
Transport Container
Centrifuge the serum separator tube and transport; if a plain red top tube, centrifuge and aliquot 1 mL serum (Min. 0.5 mL) into a standard transport tube.
Transport Temperature
Refrigerated.
Specimen Stability
After separation from cells: Ambient: 4 days; Refrigerated: 7 days; Frozen: 30 days (only one freeze-thaw allowed)
Methodology
Immunoassay
Setup Schedule
Monday & Wednesday & Friday
Report Available
1-4 days
Reference Range
U/mL Interpretation
<18.00 Negative
18.00-21.99 Equivocal
>21.99 Positive
<18.00 Negative
18.00-21.99 Equivocal
>21.99 Positive
Clinical Significance
Primary infection by EBV causes infectious mononucleosis, usually a self-limiting disease in children and young adults. Infection with EBV can cause lymphoproliferative disorders including tumors. EBNA IgG typically appears during convalescence (3-4 months after clinical presentation) and remains detectable for life. VCA-IgM positivity in the absence of EBNA IgG suggests recent, active infection.
Performing Laboratory
med fusion
