Find out more about one of the newest members in prenatal testing options, the nuchal fold translucency.
When is nuchal fold offered?
This is a screening test typically performed at 11-14 weeks by a sonographer certified to do the test.
What does nuchal fold look for?
The nuchal fold screens for genetic problems such as Down Syndrome.
How is nuchal fold done?
The nuchal fold translucency is a fairly new test that uses ultrasound to measure the space in the tissue in the nuchal fold at the back of the baby’s neck. A formula is generated using the baby’s gestational age, (confirmed by measuring the baby’s size from crown to rump,) the mother’s age and the measurement of the nuchal fold.
Are there risks?
There are no known risks other than possible risks from ultrasound.
Other facts about nuchal fold translucency you might want to know:
- The nuchal fold translucency has been performed since 1995 in the United States.
- It is important to note that the nuchal fold translucency does not indicate with certainty if there are any genetic problems, but acts as a “screening” tool that provides parents with a statistical probability.
- Further tests will be needed to confirm a number outside the normal range for the results from the nuchal fold measurements. If a result shows that there is a greater statistical likelihood that your baby has a genetic problem than what is normal for your age, then often diagnostic tests are recommended such as CVS or amniocentesis.
For more information about choosing prenatal testing, click here.
Planning to have the nuchal fold? Let us know your thoughts.
Brenda Lane - Brenda Lane is a published author, Lamaze certified childbirth educator, DONA certified birth doula and approved birth doula trainer.
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