Nuchal Translucency Scan (11-13 weeks^+5days)

When can I have the test?

NT scans are usually performed from 11 to 13+5 weeks of pregnancy. Before 11 weeks the scan is technically difficult because the baby is so tiny and, after 14 weeks, excess fluid may be absorbed by the baby's developing lymphatic system.

Who should have the screening test?

Woman choose whether or not to have the screening test. It is a personal choice for you and your partner to make. All pregnant women irrespective of age can have the test.

How is the test carried out?

The CUB screening test is carried out between 11 and 13+5 weeks of pregnancy. Depending on the results of this test some woman (about 1 in 20) will be offered a second follow up test.

For the screening test, an ultrasound measurement of the fluid-filled area at the back of the fetal neck is taken (NT). Also, a small blood sample taken from your arm is sent to the laboratory where the levels of two naturally occurring factors called Free beta HCG and PAPP-A are measured. Within a few days of having these tests the results will be available. They will show whether you have a low chance or a higher chance of your baby having Down's syndrome.

Will the screening test detect all pregnancies with Down's syndrome?

No, the screening test can identify about 4 out of 5 high risks for Down's syndrome pregnancies. It is important to note that this test is designed to detect Down's syndrome and some other similar types of chromosome abnormality. It cannot detect neural tube defects such as spina bifida and for these types of abnormality a separate test can be offered later in pregnancy.

Download Nuchal Translucency Scan Leaflet Here>

For more details
Tel: 0845 521 4500
Email: fife@healthcarenow.co.uk