Prenatal Screening

All pregnant women in the UK are entitled to prenatal testing via the NHS to assess the health of the baby.

What is a non-invasive prenatal test?

A non-invasive prenatal test analyses the DNA circulating in the pregnant mother’s blood from 10 weeks gestation. It is a new option in prenatal screening for Down syndrome (trisomy 21), Edwards syndrome (trisomy 18 ), Patau’s Syndrome (trisomy 13) and also common chromosomal conditions associated with X and Y chromosome . This test can be requested for any singleton or twin pregnancies, including in vitro fertilization (IVF) pregnancies with egg donors. However, in the twin pregnancies the chromosomal conditions associated with X and Y chromosomes cannot be screened.

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