Your health care provider or a genetic counselor will explain the results of noninvasive prenatal testing. For example:

  • Chromosomal conditions. If the test results are normal, you might not need further testing. However, if results indicate the likelihood that your baby has a chromosomal abnormality, amniocentesis or CVS will be offered. Further testing using the sample from amniocentesis or CVS can be used to confirm the diagnosis.
  • Fetal sex. If you're the carrier of an X-linked recessive disorder and the test results indicate that you're carrying a girl, you might not need further testing. If the test results indicate that you're carrying a boy, amniocentesis or CVS will be offered. These tests can be used to diagnose a genetic condition.
  • Rh factor. If you're Rh negative and the test results indicate that your baby is Rh negative, you won't need medication to prevent your body from producing Rh antibodies during your pregnancy. If the test results indicate that your baby is Rh positive and you've previously become sensitized, your baby will be carefully monitored.

Chromosomal abnormalities can't be corrected. If your baby is diagnosed with a chromosomal abnormality, you'll need to decide whether to continue with your pregnancy or what steps to take to care for your baby during pregnancy and after he or she is born. Your health care provider or a genetic counselor can help answer any questions you might have.

Keep in mind that regardless of the results of noninvasive prenatal testing, if you have risk factors that suggest your baby might be at increased risk of a chromosomal condition you have the option of undergoing amniocentesis or CVS.

Feb. 23, 2013