Question
The test results show the following values: MOM reference value AFP 40.54-0.88, HCG 0<2.11, free HCG 50.546 ng/ml <2.11, PAPP-A >0.25, NT <2.5, E3 0<30. The risk of Down syndrome is 1 in 77, high risk <1 in 270, 18-trisomy risk is 1 in 357, 14-trisomy risk <1 in 350, neural tube defect risk 0.88<2.5, maternal age risk 26.21 years <35 years. Is the Down Syndrome test report normal?
Answer
Down syndrome screening is conducted by detecting the concentration of fetal protein a and gonadotropin in the mother’s serum, and combining it with the expected delivery date, age, weight, and gestational week at the time of blood collection to calculate the risk factors for Down syndrome fetus.