34-year-old can hardly pass Down syndrome screening

Older age is one of the high-risk factors for Down syndrome. Clinical medicine stipulates that pregnant women aged 35 and above do not need to undergo Down syndrome screening, but should undergo invasive DNA or amniocentesis tests to rule out Down syndrome. Pregnant women under 35 must undergo Down syndrome screening. Many 34-year-old pregnant women feel that they are too old and may not be able to pass the Down syndrome screening.

In current clinical professional examinations, the success rate of Down syndrome screening is relatively low for pregnant women under 20 years old and pregnant women over 35 years old. The success rate of Down syndrome screening for pregnant women aged 20 to 34 is still quite high. After most 34-year-old pregnant women have undergone Down syndrome screening, the results show that the test values ​​are within the standard range, so 34-year-old pregnant women do not need to worry too much about not being able to pass the Down syndrome screening.

In fact, after doing the Down syndrome screening, even if the risk value is high or extremely high, 34-year-old pregnant women do not need to worry too much. Because the accuracy of Down syndrome screening is not very high, only 60%, and the incidence of Down syndrome is extremely low, more than 95% of pregnant women who are rated as high-risk for Down syndrome screening have no problems after further confirmation through highly accurate minimally invasive DNA or pre-delivery amniocentesis tests. However, it should be noted that if a 34-year-old pregnant woman has a family history of Down syndrome, the success rate of Down syndrome screening is generally not very high, and it is best to do a minimally invasive DNA test immediately.

The above article has already given relevant explanations on the question of whether the success rate of Down syndrome screening for 34-year-old pregnant women is high. Because older pregnant women have a higher probability of having Down syndrome and dysmenorrhea, female friends are advised to choose the best childbearing age to conceive, so as to avoid various inconveniences to the growth and development of the fetus or the body of the pregnant woman due to conceiving at an older age.