ARUP's Laboratory Test Directory

Epstein-Barr Virus Antibody to Early D Antigen (EA-D), IgG : 0050225

Mnemonic: EBV EAD

Methodology: Enzyme-Linked Immunosorbent Assay
Performed: Tue-Sat
Reported: Within 24 hours
Specimen Required: Collect:  One 4 mL serum separator tube.

Transport:  0.5 mL serum at 2-8°C. (Min: 0.2 mL)  Submit specimen in an ARUP Standard Transport Tube.

Pediatric Collection/Transport:  0.1 mL serum at 2-8°C.

Remarks:  Separate serum from cells ASAP. Acute and convalescent specimens must be labeled as such; parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens. Please mark specimen plainly as "acute" or "convalescent."

Unacceptable Conditions:  Contaminated or heat-inactivated specimens.

Stability:  After separation from cells: Ambient: 2 days; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
Reference Interval:
0.90 IV or less: Negative - No significant level of detectable IgG antibody to EBV early (D) antigen.
0.91-0.99 IV: Equivocal - Repeat testing in 10-14 days may be helpful.
1.00 IV or greater: Positive - IgG antibody to EBV early (D) antigen detected, which may indicate a current or past EBV infection.
Note: EBV EA-D values obtained with different manufacturers' assay methods may not be used interchangeably.  The magnitude of the reported EBV EA-D level cannot be correlated to an endpoint titer.
CPT Code(s): 86663
 
 

 

 

 
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