Description
Why It’s Done
Doctors may order the EBV NA IgM test to:
• Diagnose an acute EBV infection, especially in patients showing symptoms like fever, sore throat, swollen lymph nodes, and fatigue.
• Differentiate between recent and past EBV infections—IgM antibodies appear first, while IgG antibodies indicate past exposure.
• Confirm a diagnosis of mononucleosis or other EBV-related conditions.
• Evaluate unexplained symptoms such as fatigue, lymphadenopathy, or chronic throat infections.
• Assess the stage of infection in people who might be at risk for complications related to EBV.
Preparation
• No special preparation is required.
• Inform your doctor about any recent infections, medications, or vaccinations, as they may affect the test results.
• The test involves a simple blood sample taken from a vein in your arm.


