Epstein-Barr Virus Viral Capsid Antigen (VCA) Antibody (IgG)

What this laboratory test evaluates

DetailsEpstein-Barr Virus Viral Capsid Antigen (VCA) Antibody (IgG) – This test is used to detect a primary infection of the Epstein-Barr virus (EBV), which often leads to infectious mononucleosis. This condition is common in children and young adults and usually resolves on its own. However, EBV can also cause more serious lymphoproliferative disorders, including tumors. The presence of VCA-IgG antibodies, which are typically found at the onset of symptoms, indicates a past or current infection and these antibodies remain in the body for life. If VCA-IgG antibodies are not present, it may mean the individual is susceptible to an EBV infection.

What patients is this test right for?This test is particularly important for individuals showing symptoms of infectious mononucleosis or for those at risk of EBV-related lymphoproliferative disorders.

Symptoms of infectious mononucleosis include:• Fever
• Sore throat
• Swollen lymph nodes
• Fatigue
• Swollen spleen or liver

What type of sample is required for this test?1 mL serum. A blood sample is needed.

Additional test information

This test is particularly important for individuals showing symptoms of infectious mononucleosis or for those at risk of EBV-related lymphoproliferative disorders.

Collection and processing

• Sample type: Serum
• Fasting: No
• Estimated laboratory processing: Results should be available in 2 – 5 business days after the sample is collected

How Sunridge uses laboratory information

Sunridge considers the medical question, symptoms, history, medications, prior results, and whether the finding could change care before recommending testing. A laboratory result is not interpreted in isolation and does not establish a diagnosis by itself.

Before requesting this test

Availability, collection requirements, eligibility, and processing estimates can change. Sunridge reviews each request and, when appropriate, creates the order through Fullscript. Follow the current instructions supplied with the approved order.