Description
Non-invasive prenatal tests are performed non-invasively, so the Prenatal Test Trisomy 21 is completely safe for the mother and the baby. The sample is obtained from a normal blood draw, which has allowed to replace amniocentesis.
The non-invasive prenatal test Trisomy 21 allows us to detect this trisomy, also known as Down syndrome, in the baby before birth.
Trisomy 21
Trisomy 21 or Down Syndrome is one of the most frequent chromosomal abnormalities. In fact, it appears in one in 700 newborns.
This appears when a third copy of chromosome 21 appears, that is, when the egg and sperm come together to create the fertilized egg, three chromosomes 21 appear instead of two.
Children with Down syndrome develop muscular hypotonia, joint laxity and variable intellectual disability.
