Question
The result of the Down syndrome 21-trisomy screening shows a low risk with a risk value of 1:610. Should I consider doing another blood test?
Answer
Case Analysis: The result of the Down syndrome 21-trisomy screening indicates a low risk, with a risk value of 1:610. The general population has a chance of 1 in 750 of having Down syndrome. Guidance: A low-risk result usually does not require additional blood tests, but it is recommended to undergo amniocentesis for confirmation. Even with a low risk, for safety’s sake, it is still recommended to undergo Down syndrome screening. Children with Down syndrome may have intellectual disabilities and cardiovascular diseases, requiring long-term care. Further examination is advised to exclude risks.