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Test Code EAEBV Epstein-Barr Virus Early Antigen, IgG, Serum


Specimen Required


Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL

Collection Instructions: Centrifuge and aliquot serum into a plastic vial.


Secondary ID

621374

Useful For

Diagnosis of Epstein Barr virus (EBV) infectious mononucleosis in cases when heterophile antibody test results are negative and EBV-specific serologic testing is inconclusive

 

Aiding in the diagnosis of type 2 or type 3 nasopharyngeal carcinoma (NPC)

 

This test is not useful for screening patients for NPC.

Method Name

Enzyme-Linked Immunosorbent Assay (ELISA)

Specimen Type

Serum

Specimen Minimum Volume

0.4 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Frozen (preferred) 14 days
  Refrigerated  48 hours

Reject Due To

Gross hemolysis Reject
Gross lipemia Reject
Heat-activated specimen Reject

Reference Values

Negative

Reference values apply to all ages.

Interpretation

Positive - IgG antibodies specific to EBV early antigen detected.

Equivocal - Recommend follow-up testing in 10-14 days if clinically indicated

Negative - No IgG to EBV early antigen detected.

 

Do not make a diagnosis based on ZEUS ELISA EBV-EA IgG Test System alone. Interpret test results for anti-EBV-early antigen (EA) in conjunction with the clinical evaluation and the results of other diagnostic procedures. Consider test results for VCA and EBNA when evaluating patient specimens for EBV serological status.

Method Description

The ZEUS ELISA EBV-EA IgG Test System is designed to detect IgG class antibodies to Epstein-Barr Virus early antigen in human sera. Creation of the sensitized wells of the plastic microwell strips occurred using passive adsorption with EBV-EA antigen. The test procedure involves three incubation steps: 1. Test sera (properly diluted) are incubated in antigen coated microwells. Any antigen specific antibody in the sample will bind to the immobilized antigen. The plate is washed to remove unbound antibody and other serum components. 2. Peroxidase Conjugated goat anti-human IgG is added to the wells and the plate is incubated. The Conjugate will react with IgG antibody immobilized on the solid phase in step 1. The wells are washed to remove unreacted Conjugate. 3. The microwells containing immobilized peroxidase Conjugate are incubated with peroxidase Substrate Solution. Hydrolysis of the Substrate by peroxidase produces a color change. After a period of time, the reaction is stopped, and the color intensity of the solution is measured photometrically. The color intensity of the solution depends upon the antibody concentration in the original test sample.(Package insert: EBV-EA IgG Test System. Zeus Scientific, Inc.; 02/16/2022)

Day(s) Performed

Tuesday; Thursday

Report Available

Same day/1 to 5 days

Specimen Retention Time

2 weeks

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

86663

LOINC Code Information

Test ID Test Order Name Order LOINC Value
EAEBV EBV EA IgG, S 40752-8

 

Result ID Test Result Name Result LOINC Value
EBVEA EBVEA IgG, S 40752-8