Antenatal screening tests identify women with a high risk or chance of an affected pregnancy so that they can be offered a diagnostic test.
If the diagnosis is a pregnancy affected with Down syndrome, Edwards syndrome, Patau syndrome women have the option of continuing the pregnancy or a termination of pregnancy.
Available screening tests
The Wolfson Institute Antenatal Screening Service provides three screening tests for Down syndrome, Edwards syndrome and two screening tests for Patau syndrome:
A number of factors can have an effect on how we calculate the risk of a woman having a pregnancy with Down syndrome, Edwards syndromne or Patau syndrome..
Find out how we calculate risk.