The nuchal translucency and the combined screening of the first trimester
The combined screening of the first trimester, also known as triple screening, is a non-invasive prenatal test that consists in performing an ultrasound and a blood test on the pregnant woman to rule out possible chromosomal alterations.
As the name suggests, this test should be done around the 12th week of pregnancy , that is, at the end of the first trimester so that its result is reliable.
One of its main advantages is that it has managed to reduce the number of amniocentesis and corial biopsies in pregnant women, tests that are invasive.
Below you have an index with all the points that we will discuss in this article.
Index- 1. What is triple screening?
- 1.1. How is it done?
- 1.2. When is made?
- 1.3. Results
- 2. Biochemical screening of the second trimester
- 3. Advantages of triple screening
- 4. Questions from users
- 4.1. Is triple screening done in all pregnancies? Is it reliable?
- 4.2. What is the nuchal translucency of the fetus?
- 4.3. Can triple screening be done by Social Security?
- 4.4. Is the nasal bone also measured in triple screening?
- 4.5. How is triple screening in a twin pregnancy?
- 5. Recommended reading
- 6. Bibliography
- 7. Authors and collaborators


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