A child with a critical risk of trisomy 21 can usually be conceived, but further non-invasive DNA or amniocentesis tests must be done to confirm the diagnosis, and the pregnancy can be continued once the results are normal. The Down’s syndrome test suggests a critical risk for trisomy 21, in which case most babies are fine, but the risk is higher than the low-risk coefficient, so further non-invasive DNA or amniocentesis must be done to confirm the diagnosis, and the accuracy of these two tests accounts for about 99 percent. Further examination of the baby is not a problem, you also need to make an appointment for a 4D ultrasound examination in a timely manner, and do a good job of all the checkup programs in pregnancy to ensure the healthy development of the fetus. Trisomy 21 Critical Risk Once further testing confirms the diagnosis of fetal Down syndrome, it is important to listen to your doctor’s advice to ensure a healthy baby.