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About the test
What is this test done for?
Toxoplasma IgG is a blood test to detect antibodies to Toxoplasma gondii parasite.
Why is it Done?
It is done to detect the toxoplasma gondii infection in pregnant woman, unborn baby- amniotic fluid is tested or in an immunocompromised person, who has flu like symptoms.
When should it be performed?

This test is done when the following signs and symptoms are seen, suggesting an infection:

  • Swollen lymph nodes
  • Fever, night sweats
  • Weakness, fatigue
  • Headache
  • Body aches
  • Sometimes severe symptoms like seizures
How is it done
A blood sample will be collected from a vein in your arm. No fasting is needed prior to sample collection.
The following can help to assess better results when IgM is also done:
  • If IgM is negative and IgG is positive then it indicates that the body had a past infection.
  • If IgM is negative and IgG is also negative then it indicates no current or past infection.
  • If IgM is positive and IgG is negative then it indicates early infection in newborns which suggests some congenital infection.
  • If IgM is positive and IgG is positive then it would suggest current infection.
Other Tests
Usually in pregnancy it is performed along with TORCH panel of tests. A routine CBC and ESR also are done to get clearer picture.
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