Patient's question:
Doctor, hello, my wife is currently 16 weeks and 3 days pregnant. She just had a screening for Down syndrome two days ago, and the result was 1 in 800. The doctor said this result is not ideal and asked if we want further testing. What is the accuracy rate for this Down syndrome screening? Do we need further testing?Doctor's answer:
A prenatal screening test, not a diagnostic result, is the Down syndrome screening. The general results are categorized as low-risk, borderline risk, and high-risk. If the 21-trisomy combined value is below 1:270, it is usually not a major issue. If there is a higher risk, amniocentesis can be used for further confirmation, but there is no need to worry if it is normal. If amniocentesis confirms Down syndrome, it is recommended to terminate the pregnancy as soon as possible. It is suggested that you do not get too anxious now and wait to see after the test.