Patient's question:
I had a prenatal ultrasound and Down syndrome screening at the hospital on February 12th. The doctor told me the risk of trisomy 21 was 1:150 and recommended I have an amniocentesis. However, my report shows my weight as 102 jin, while my actual weight is 127 jin, and the gestational age is 18 weeks and 6 days. But the ultrasound shows it's 17 weeks. I want to ask if the discrepancy between my weight and gestational age could affect my Down syndrome screening results.Doctor's answer:
Disease Analysis: The critical value is 1/275. Values above it indicate high risk, while those below it indicate low risk.Recommendation: It is best to undergo amniocentesis. Amniocentesis can detect whether there are congenital malformations, congenital metabolic defects, chromosomal abnormalities, or sex-linked genetic diseases, among others.