![]() ![]() These second trimester screening tests, known as the quadruple screening (or quad screen, or multiple markers test), look for the presence of certain hormones: alpha-fetoprotein, estriol, hCG, and inhibin A. When the results of your first trimester screenings (the nuchal translucency test and the blood test) and a set of second trimester screenings are combined, it’s called an integrated screening. When Is a Nuchal Translucency Test Done?Ī nuchal translucency screening (ultrasound) is usually done in the first trimester between 10 and 14 weeks of pregnancy. Talk to your healthcare provider about your preferences so you can make an informed decision about whether or not you’d like a nuchal translucency test done. A first trimester screening, which includes a nuchal translucency ultrasound, is considered safe. You might feel more comfortable if you discuss your situation with your healthcare provider to determine whether screening or further diagnostic testing is recommended for your specific case. It's worth being aware that prenatal screenings aren't always 100 percent accurate: false positives and false negatives can happen. If your healthcare provider suspects something unusual based on the results, further diagnostic testing, such as chorionic villus sampling or amniocentesis, may be recommended so that a diagnosis can be made. ![]() If it's abnormally large, containing more fluid than usual, it may indicate Down syndrome (trisomy 21) or another genetic condition called trisomy 18. What Does a Nuchal Translucency Ultrasound Test For?ĭuring a nuchal translucency screening, an ultrasound scan is used to take a measurement of the thickness of the back of the neck of your baby. Although your healthcare provider will likely recommend tests like the nuchal translucency screening as a regular part of your prenatal care, it’s your decision whether you want to go ahead with them or not - they are completely optional. Keep in mind that these and other prenatal screening tests can indicate the likelihood or chances of a baby having a certain condition, but they cannot diagnose any condition. Together, these two tests are sometimes called the “combined first trimester screening.” Nuchal translucency screening is a type of ultrasound examination that is done in the first trimester to scan for certain medical conditions. Read on to get some answers to the most frequently asked questions about nuchal translucency screening, including how the test is done, and what the results may indicate. One of these tests, performed during the first trimester, is called a nuchal translucency screening, which is basically an ultrasound that scans for certain medical conditions. During your prenatal checkups, your healthcare provider may offer some screening tests. ![]()
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