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About the test
What is this test done for?
The CMV antibody IgM test is done for diagnosing primary, acute phase of infection with cytomegalovirus (CMV) in people infected with mononucleosis or in pregnant women.
Why is it Done?
This test is done in cases where a CMV infection is suspected. In young adults, immune-comprised person, or pregnant women when flu like symptoms appear, it could suggest CMV infection. Furthermore, in a new born baby with multiple congenital abnormalities, anemia, and developmental problems, doctors may suggest testing for CMV antibody IgM. It is also tested just prior to receiving an organ transplant.
When should it be performed?

The test should be performed along with tests for influenza, Epstein-Barr virus, or when following symptoms are seen:

  • Fatigue, weakness
  • Sore throat
  • Fever
  • Headache
  • Muscle pain or general body pains
  • Enlarged lymph nodes in the body
How is it done
A blood sample will be collected from a vein in your arm. Fasting is not required for the CMV antibody IgM test.
CMV antibody IgM is reported as: positive or negative.
  • A negative CMV antibody IgM result suggests that the person is not experiencing any acute or recent infection. However, one cannot rule out primary infection.
  • Positive CMV antibody IgM indicates a recent infection.
Other Tests
CMV is a part of TORCH, an acronym for Toxoplasmosis, Rubella, Cytomegalovirus, and Herpes simplex virus. Therefore, is done for screening pregnant women for fetal deformities. A renal profile is also done along with the CMV tests to rule out any complications.
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