Down syndrome screening involves testing the levels of alpha-fetoprotein, human chrionic gonadotropin (HCG) hormone, and free estriol in the mother’s serum to assess the risk of fetal congenital defects. If the results indicate a high risk, further tests such as amniocentesis or non-invasive prenatal testing may be required to determine the fetus’s health status.

When the Down Syndrome screening results exceed the standard, is it necessary to undergo amniocentesis to ensure the fetus’s health?

Down syndrome screening primarily involves blood testing, but some hospitals may require additional checks, such as liver function tests and urine analysis, to comprehensively assess the health status of pregnant women. It is advisable to consult a doctor and follow their instructions before the test.

Is a 1:400 ratio in Down Syndrome screening reports normal? Are all women over 35 years of age considered high-risk for 21-TRISOMY syndrome? Professional physicians provide detailed explanations and recommendations.

The Down syndrome screening result shows a low PAPP-A index, but the comprehensive risk assessment remains low.

Interpreting the Results of Down Syndrome Screening

With a Down Syndrome screening risk of 1 in 700, do you need an amniocentesis?

The risk value for Down syndrome screening is 1:530, nearing the threshold, and doctors recommend amniocentesis for further confirmation.

What is the purpose of Down syndrome screening? Is it reasonable for a doctor to suggest not doing a Down syndrome screen during prenatal tests?

Understand the purpose, methods, and approximate costs of Down syndrome screening.