What is the integrated test?
The Integrated test identifies pregnancies at a high risk of Down’s syndrome, open neural tube defects and Edward’s syndrome (Trisomy 18).
What does the test involve?
The test is performed in two stages and the result is based on the data collected on both occasions. Stage 1 is undertaken between 11-13 weeks and comprises a blood test and an ultrasound scan. Stage two is undertaken ideally between 15-16 weeks and involves a second blood test.
Women with a risk of 1 in 250 or greater are interpreted as screen-positive for Down’s syndrome and are offered a further diagnostic test such as a chorionic villus sampling or an amniocentesis.