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

What this laboratory test evaluates

DetailsEpstein-Barr Virus Viral Capsid Antigen (VCA) Antibody (IgM) – This test is used to detect a primary infection of the Epstein-Barr virus (EBV), which is the common cause of infectious mononucleosis. EBV infections are usually not serious in children and young adults but can lead to lymphoproliferative disorders, including tumors. The VCA-IgM is an antibody that becomes detectable when the infection starts, and its levels drop to undetectable after recovery, usually within a month for young children and within three months for others.

What patients is this test right for?This test is suitable for individuals showing symptoms of infectious mononucleosis or when EBV infection is suspected.

Symptoms of infectious mononucleosis may 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 simple blood draw is needed.

Test ResourcesFor more information, consult your healthcare provider.

Additional test information

This test is suitable for individuals showing symptoms of infectious mononucleosis or when EBV infection is suspected.

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.