What should I know about prenatal screening tests?
South Asian Health — Pregnancy & New Mothers14 August 2026
Prenatal screening tests are important tools used to assess the risk of certain genetic disorders and chromosomal abnormalities in your baby. In the UK, these tests typically include the combined test, which is done between 11 and 14 weeks of pregnancy, and the anomaly scan around 20 weeks. These tests involve an ultrasound and blood tests to measure hormone levels. While screening tests can indicate increased risks, they do not provide a diagnosis. If you have concerns or if the results suggest a higher risk, further diagnostic tests like amniocentesis may be offered. Always discuss your options with your midwife or GP to make informed decisions.