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Toxoplasmosis Test

(continued)

What Affects the Test

Other infections can cause a false-positive result in a newborn.

Other antibodies, such as rheumatoid factor or antinuclear antibodies, may also cause a false-positive result.

What To Think About

If your baby has the IgG antibody, he or she is not infected. If your baby has the IgM antibody, he or she does have toxoplasmosis.
Your newborn baby may be given a TORCH test at the same time as a toxoplasmosis test. TORCH stands for Toxoplasmosis, Other, Rubella, Cytomegalovirus, and Herpes. The TORCH test checks to see if your baby has any of these infections.
For more information on toxoplasmosis infection in pregnancy, see the topic Toxoplasmosis During Pregnancy.
The toxoplasmosis polymerase chain reaction (PCR) test checks your amniotic fluid to see if toxoplasmosis is present. This test may be more accurate than other tests in finding an infection in your growing baby (fetus).

Citations
Chernecky CC, Berger BJ (2008). Laboratory Tests and Diagnostic Procedures, 5th ed. St. Louis: Saunders.
Other Works Consulted
Chernecky CC, Berger BJ (2008). Laboratory Tests and Diagnostic Procedures, 5th ed. St. Louis: Saunders.
Fischbach FT, Dunning MB III, eds. (2009). Manual of Laboratory and Diagnostic Tests, 8th ed. Philadelphia: Lippincott Williams and Wilkins.
Pagana KD, Pagana TJ (2010). Mosby?s Manual of Diagnostic and Laboratory Tests, 4th ed. St. Louis: Mosby.

By	Healthwise Staff
Primary Medical Reviewer	Sarah Marshall, MD - Family Medicine
Specialist Medical Reviewer	Kirtly Jones, MD, MD - Obstetrics and Gynecology
Last Revised	June 2, 2011

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WebMD Medical Reference from Healthwise

Last Updated: June 02, 2011

This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.