The test is done between 11 and 14 weeks of pregnancy. It may be done as part of the first trimester screening test or the integrated screening test. This test shows the chance that a baby may have a certain problem.

How early can a nuchal scan be done?

How is a nuchal translucency scan performed and when? The nuchal translucency scan is done between 11 and 14 weeks of pregnancy. It might need to be done alone, or it might be able to be done while youre having your dating scan.

In which month of pregnancy NT scan is done?

A nuchal translucency scan (also called first trimester of pregnancy screening) is carried out during weeks 11–13 of a pregnancy. The scan uses ultrasound to screen for Down syndrome, or other chromosomal or inherited conditions in the foetus.

When do you need a nuchal translucency blood test?

The nuchal translucency screening test must take place at a particular time in your first trimester. This is between 11 weeks 2 days and 13 weeks 6 days or when your babys crown-rump length (CRL) is between 45 and 84mm. If your dates fall outside of this range, the risk calculation cannot be performed.

Can a thick nuchal fold go away?

An abnormally thickened nuchal fold or even a cystic hygroma may resolve, especially toward the third trimester; however, the risk of karyotypic abnormalities is not reduced.

How long do nt results take?

Your doctor will look at the results of the nuchal translucency test to see if the area of fluid buildup under the skin at the back of the babys neck is thicker than normal. You may not receive information about the test right away. Full results are usually available in 1 or 2 days.

Can a healthy baby have a thick nuchal fold?

Many healthy babies have thick nuchal folds. However, there is a higher chance for Down syndrome or other chromosome conditions when the nuchal fold is thick. There may also be a higher chance for rare genetic conditions.

Does thick nuchal fold mean Down syndrome?

Many studies have shown that a thickened nuchal fold in a second-trimester fetus is a sonographic sign suggestive of a high risk for Down syndrome. These series have included fetuses already at risk for aneuploidy because of advanced maternal age or abnormal maternal serum alpha-fetoprotein (AFP) levels.

Can thick nuchal fold be normal?

Many healthy babies have thick nuchal folds. However, there is a higher chance for Down syndrome or other chromosome conditions when the nuchal fold is thick. There may also be a higher chance for rare genetic conditions.