The critical risk of trisomy 21 is not serious. The results of this test are not very accurate and the chance of accuracy of Down’s syndrome screening is only 65%. If there is a critical risk, a non-invasive DNA test can be done. A non-invasive DNA test can be 99% accurate. After the non-invasive DNA is done, if it is determined that there is still a problem, further amniotic fluid testing is required, which is more accurate, and the results of this test are also final. If an amniocentesis test determines that there is a problem, then this baby cannot be kept. If the amniocentesis is done and there is no problem with the baby, the baby can be allowed to be born and the baby will not usually have problems after birth. It is important to follow the months and cycles of pregnancy to be accurate and scientifically based during the test.