What Does a 1 in 15 High Risk Value for 21-TRISOMY Screening Mean?

Question

What Does a 1 in 15 High Risk Value for 21-TRISOMY Screening Mean?

Answer

A 1 in 15 high risk value for 21-trisomy screening means that among 15 individuals tested, one is detected with the 21-trisomy syndrome. This is a screening result that indicates a higher probability that the baby may have Down syndrome. The specific calculation of the risk value takes into account various factors, including the pregnant woman’s age, weight, gestational age, and levels of serum markers (such as AFP and HCG). If the screening result suggests a high risk, it is typically recommended to undergo amniocentesis or other more accurate diagnostic tests to confirm the presence of 21-trisomy syndrome or other chromosomal abnormalities.