This video was created by the Washington State Department of Health and Genetic Support Foundation to provide you with an objective overview of cell-free DNA (cfDNA) including how it works, what it can and cannot tell you about your pregnancy, what results actually mean, and things to consider to help you decide if cfDNA is right for you.


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Tips and Info to Know Before Having Prenatal cfDNA Screening

  • Prenatal cfDNA screening appears to be the most accurate screening test for Down syndrome, better than the traditional screening tests such as quad screen, first trimester screening, etc.
  • Prenatal cfDNA screening has some advantages and some disadvantages when compared to other screening tests in terms of what each test screens for, testing cost, etc.
  • Prenatal cfDNA screening is not “yes or no”.  It is a screening test and false positives and false negatives do occur with this testing.
  • If your Prenatal cfDNA screening comes back positive or high risk, amniocentesis is recommended to give you definitive answers, if you desire.
  • Normal prenatal cfDNA screening results decreases the chance of the conditions screened but does not rule them out completely.
  • Prenatal cfDNA screening does not test for all chromosome conditions or birth defects.
  • Prenatal cfDNA screening may reveal other conditions in the mom or the developing baby that are not listed as being screened for.
  • Prenatal cfDNA screening is an optional test.

For more information regarding topics related to prenatal cfDNA screening, please see the sidebar. For detailed Prenatal cfDNA screening testing information click HERE.