Answer:
Her doctor performs an amniocentesis, which involves withdrawing and testing a sample of amniotic fluid.
Step-by-step explanation:
As we know, amniotic fluid is a yellow fluid that surrounds the baby in the womb. Amniocentesis is the withdrawing of 30 cubic centimeters of amniotic fluid from a woman's womb with the purpose of testing to find if the baby has genetic abnormalities such as Down syndrome, spina bifida, and cystic fibrosis. The fluid is collected with a thin and long needle.