|

Nuchal Translucency Screening

An ultrasound scan, known as the nuchal translucency screening, is done between 11 and 14 weeks of pregnancy and is used to help assess your baby's risk of Down syndrome. During this test, the sonographer measures the depth of fluid under the skin at the back of the baby's neck, known as the nuchal fold. If this measurement is high, it indicates that excess fluid is present, which means that the baby has a higher risk of Down syndrome. The measurement is then combined with the results of blood tests and the average risk based on your age to give your baby's individual risk for Down syndrome. If your risk is higher than 1 in 250, you will be counseled and offered a diagnostic test, such as amniocentesis or chorionic villus sampling, to give a definitive result (see Chorionic villus sampling).

Ultrasound of fetus

The small depth of fluid seen in the neck's nuchal fold in this scan means that the fetus has a low risk of developing Down syndrome.

Ultrasound of fetus

The thicker nuchal fold seen here indicates an increased risk of Down syndrome in this fetus and a diagnostic test will be recommended.

excerpted from:

Excerpted from Pregnancy Day by Day.
Copyright © 2009 Dorling Kindersley Limited.
Buy this book now!

Pregnancy Day by Day

Tell us your due date to receive our daily newsletter and find out what is happening in this day of your pregnancy!

Already a member? Log-in here

Name of the Day

highlights

Top 10 Sweet 16 Birthday Gifts
Your daughter's sweet 16 is a big milestone in her life. Celebrate this special occasion with one of these top gifts for girls turning 16.

Find Today's Newest & Best Children's Books!
Looking for newly released books for your child? Try our new Book Finder tool to search for new books by age, type, and theme, brought to you by Galactic Hot Dogs.

Printable Lists of the Top 100 Baby Names
Need help with baby name ideas? Use our printable list of the top 100 girl names and top 100 boy names of 2015 to help you brainstorm and narrow down your favorites.

Registered for Kindergarten — Now What?
Wondering what to do now that you've signed your child up for kindergarten? Try our award-winning Kindergarten Readiness app! This easy-to-use checklist comes with games and activities to help your child build essential skills for kindergarten. Download the Kindergarten Readiness app today!

stay connected

Sign up for our free email newsletters and receive the latest advice and information on all things parenting.

Enter your email address to sign up or manage your account.

Facebook icon Facebook icon Follow Us on Pinterest

© 2000-2015  Sandbox Networks, Inc. All Rights Reserved.