If you have a Down’s syndrome screening test for trisomy 21 with a critical risk, there is no need to be overly nervous about this situation. With a critical risk, there is a possibility that the baby will have a malformation, but there is also a part that may not have a malformation. If you have Down’s syndrome screening, the results of this test are only about 65% accurate. If you have a critical risk of trisomy 21, you can have a non-invasive DNA test. If the non-invasive DNA test is still a critical risk, amniocentesis may be performed if necessary. Amniocentesis is a comprehensive analysis of the genetic aspects of the fetus by directly extracting the amniotic fluid. If there is no problem with the amniocentesis, the baby is healthy and can be delivered without problems. However, if there is a risk of having an amniocentesis, the baby cannot be born and the possibility of having malformations after birth is relatively high.