|
|
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Epstein-Barr Virus Viral Capsid Antigen (VCA) Antibody (IgA)
Test Code38015
CPT Codes
86665
Preferred Specimen
1 mL serum
Minimum Volume
0.25 mL
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
Room temperature: 7 days
Refrigerated: 14 days
Frozen: 30 days
Refrigerated: 14 days
Frozen: 30 days
Methodology
Indirect Immunofluorescence Assay
Setup Schedule
Tuesday-Saturday Morning
Report available: 2 Days
Report available: 2 Days
Reference Range
<1:10
Interpretive Criteria
Interpretive Criteria
| <1:10 | Antibody not detected |
| 1:10-1:40 | Past infection |
| ≥1:80 | Chronic/Reactivated infection |
Clinical Significance
VCA IgA titers ≥1:80 often indicate chronic or reactivated EBV infection, whereas titers of 1:10, 1:20, or 1:40 usually indicate past infection.
Elevated titers of VCA IgA are found in most patients with nasopharyngeal carcinoma; titers decrease with successful treatment.
Elevated titers of VCA IgA are found in most patients with nasopharyngeal carcinoma; titers decrease with successful treatment.
