Patient's question:
Am I still able to have the Down syndrome screening at 21 weeks of pregnancy? What does the Down syndrome screening mainly check for? What are the respective functions of the Down syndrome screening and the 4D ultrasound?Doctor's answer:
At 21 weeks of pregnancy, can the Down syndrome screening be performed? The traditional Down syndrome screening is mainly used to screen for chromosomal diseases, typically performed between 15 and 20 weeks of pregnancy. Since you are currently at 21 weeks, there is no need to undergo the screening.The 4D ultrasound is used to check for fetal developmental abnormalities and should be performed between 24 and 28 weeks of pregnancy. Fetal developmental abnormalities caused by this condition are not easily cured. Friends who have this condition should maintain a positive attitude and face it with optimism. Only in this way can they enhance their confidence in combating the condition and believe that recovery is possible.