September 30, 2017Health Library
Also known as Prenatal cell-free DNA (cfDNA) screening, is a method to screen for certain chromosomal abnormalities in a developing baby. During this screening, DNA from the mother and fetus is extracted from a maternal blood sample and screened for the increased chance for specific chromosome problems, such as Down syndrome, trisomy 13 and trisomy 18. This screening can also provide information about fetal sex and rhesus (Rh) blood type.