Question
Is a 1:400 ratio in Down Syndrome screening tests normal? Are all women over 35 years old considered high-risk for 21-TRISOMY syndrome?
Answer
Condition Analysis: Hello, based on your report, the screening ratio for 21-trisomy syndrome is 1:400, indicating a relatively high risk. Guidance: We recommend that you undergo further non-invasive DNA testing or amniocentesis to determine the fetus’s health status. For women over 35 years old, due to age factors, they are indeed considered high-risk for 21-trisomy syndrome, and therefore, it is even more important to pay attention to prenatal examinations and assessments.