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What is a EPSTEIN BARR VIRUS IgM (EBV-IgM)?

The Epstein–Barr Virus IgM (EBV‑IgM) test is a blood test used to detect early antibodies produced during an acute or recent Epstein–Barr virus infection. EBV is the virus responsible for infectious mononucleosis (mono), and the presence of IgM antibodies indicates a current or very recent infection. Doctors order this test to confirm suspected EBV infection, especially in patients with symptoms like fever, sore throat, swollen lymph nodes, or fatigue.

Additional Information

Also known as/ Other names: EBV IgM Antibody Test, Epstein–Barr Virus IgM, Anti‑EBV IgM, EBV IgM Serology, EBV VCA IgM
Parameters: 1
Recommended for: M/F/Others
Sample Type: Blood
Patient Preparation: No prior preparation is needed
Reports: Next Day

FAQs

Why is the EBV‑IgM test done?

Healthcare professionals order it to diagnose suspected acute EBV infection in patients with fever, sore throat, swollen lymph nodes, or fatigue.

What does a positive EBV‑IgM result mean?

A positive result indicates a current or very recent Epstein–Barr virus infection.

What does a negative EBV‑IgM result mean?

A negative result suggests no recent EBV infection, though past infection may still be present.

Can the EBV‑IgM test detect past infection?

No, it only detects recent infection. EBV‑IgG testing is used to confirm past exposure.

How soon after symptoms should the test be done?

It is most useful within the first few weeks of illness when IgM antibodies are present.

Is the EBV‑IgM test used alone?

No, it is often combined with EBV‑IgG and other tests for accurate diagnosis.

Does a positive result mean lifelong infection?

No, IgM positivity indicates recent infection. EBV remains dormant in the body, but IgM disappears after recovery.

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