Mary Calvagna, MS
Many prenatal tests are performed routinely in all pregnant women. Blood tests, urine tests, and ultrasounds pose little or no risk to the mother or baby. These tests can provide valuable information to help your doctor care for you and your developing baby. Other tests come with significant risks. Therefore, these tests are only considered for women with high risk pregnancies.
Some maternal factors that can make a pregnancy high risk include:
Your doctor may recommend more invasive tests if your pregnancy is high risk, but the decision to have a test is yours. Understanding each test and what it measures, how reliable it is, and the risk associated with the test will help you make your decision. It is important to discuss your options with your doctor, especially if the test indicates there may be a problem.
Couples may choose to have certain prenatal tests for different reasons, including to:
American Congress of Obstetricians and Gynecologists. Diagnosing birth defects [pamphlet]. April 2005; AP164.
American Congress of Obstetricians and Gynecologists. Practice bulletin: invasive prenatal testing for aneuploidy.
December 2007; No. 88.
American Congress of Obstetricians and Gynecologists. Practice bulletin: screening for fetal chromosomal abnormalities.
January 2007; No. 77.
Chorionic villus sampling: CVS. American Pregnancy Association website. Available at:
http://www.americanpregnancy.org/prenataltesting/cvs.html. Updated July 2015. Accessed April 28, 2016.
Prenatal tests. Nemours Foundation. KidsHealth website. Available at:
http://kidshealth.org/parent/system/medical/prenatal_tests.html. Updated June 2013. Accessed April 28, 2016.
Routine prenatal care. EBSCO DynaMed website. Available at:
http://www.ebscohost.com/dynamed. Updated April 24, 2016. Accessed April 28, 2016.
Last reviewed April 2016 by Andrea Chisholm, MD
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