Question
Why do I need an ultrasound exam despite the Down Syndrome screening showing a low risk? Will the fetal protection medication I took previously affect the test results?
Answer
Fetal protection medication has no effect on the embryo and will not affect your test results. According to guidelines, the best time for Down Syndrome screening is between 14 to 19 weeks of pregnancy, while the ultrasound exam is recommended between 20 to 24 weeks. Down syndrome is a chromosomal disorder, and an ultrasound can further diagnose fetal abnormalities. Even if the Down Syndrome screening shows a low risk, an ultrasound exam is still part of the standard medical procedure.