Patient's question:
I am four months pregnant, and this is my second child. I had a serum test, and one result is a concern for me. Trisomy 21 syndrome is classified as a critical risk with a risk value of 1/837. There is no family history, and I am quite troubled by this.Doctor's answer:
This is used to check if the child has neural tube defects or 21- or 18-trisomy chromosomal diseases. The result of this detailed Down syndrome screening is that the 21-trisomy syndrome is at a critical risk level. This result falls within the high-risk range, so it is best to do a non-invasive DNA test for further confirmation. In fact, this risk is not very high, and a detailed check may also show a low risk, but without the check, there is always anxiety.