Nuchal translucency (NT) scan
A nuchal translucency (NT) scan is an ultrasound scan to measure the amount of fluid at the back of your baby's neck. It is part of the combined screening test for Down's syndrome, which is offered at around 12 weeks of pregnancy. The results of your NT scan are combined with blood test results and other factors, such as your age. An NT scan helps to accurately assess the probability that your baby has Down's syndrome, Edwards' syndrome or Patau's syndrome. Find out more about the NT scan and when it can be done.
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