Patient's question:
I am 12 weeks pregnant now, and everyone wants a healthy baby. I heard that non-invasive testing can be done. Could you please explain how non-invasive testing is performed during pregnancy?Doctor's answer:
The full name of non-invasive testing is non-invasive DNA testing, which currently requires careful examination of three DNA strands to screen for trisomy syndrome. Non-invasive testing involves blood tests during the second trimester of pregnancy, usually around the 15th week. It is a preliminary screening. If the results of the early prenatal screening are low risk, further non-invasive DNA testing is generally not necessary. To understand the baby's growth and development in the womb and to identify any congenital defects, a four-dimensional ultrasound examination can be conducted between the 22nd and 28th weeks of pregnancy.