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Test Name:
Epstein-Barr Virus IgA Antibody to Viral Capsid Antigen
- SBMF No:
45388 - Performance Lab Name:
ARUP Laboratories - Test Mnemonic:
EBV VCA A - ABN:
Required – Not FDA-Approved - CPT Code:
86665 - LOINC Code:
19146-0 - Ref Lab Test No:
0051626 - Also Known As:
EBV VCA IgA - Also See:
28621 Epstein-Barr Virus Antibody Panel
28623 Epstein-Barr Virus IgG Antibody to Early D Antigen
28624 Epstein-Barr Virus IgG Antibody to Nuclear Antigen
28625 Epstein-Barr Virus IgG Antibody to Viral Capsid Antigen
28626 Epstein-Barr Virus IgM Antibody to Viral Capsid Antigen - Spec Type:
Serum - Spec Container:
Gold top (SST) or red top (serum) tube - Pref Vol:
0.5 mL - Min Vol:
0.2 mL
Pediatric Collection: 0.1 mL - Fasting:
No - Spec Collect:
Routine venipuncture
Parallel testing is preferred
Label samples as: "acute" or "convalescent"
Convalescent samples must be received within 30 days from receipt of acute samples - Spec Process:
Clot 30 minutes
Promptly centrifuge 15 minutes
Immediately transfer serum to separate plastic tube - Spec Store Transport:
Refrigerated - Spec Stability:
After separation from cells:
48 hours room temperature (20-30°C)
2 weeks refrigerated (2-8°C)
1 year frozen (-20°C) – Do not use frost-free units that undergo repeated freeze/thaw cycles - Spec Reject:
Contaminated or heat-inactivated sample - Methodology:
Enzyme-Linked Immunosorbent Assay (ELISA) - Clinical Significance:
Refer to:
- Reference Range:
- Epstein-Barr Virus Antibody to Viral Capsid Antigen, IgA
- 0.79 U/mL or less: Negative - No significant level of detectable IgA antibody to EBV viral capsid antigen.
0.80 - 1.20 U/mL: Equivocal - Repeat testing in 10-14 days may be helpful.
1.21 U/mL or greater: Positive - IgA antibody to EBV viral capsid antigen detected, which may be related to chronic or reactivated EBV infection.
- Additional Test Info:
This test was developed and its performance characteristics determined by ARUP Laboratories. The U.S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions. - Day Run:
Tue - Time Reported:
2-9 days - Test Type:
INFECTIOUS ANTIBODY
