What is the method called that involves obtaining fetal cells from amniotic fluid?

• A. Chorionic villus sampling
• B. Amniocentesis
• C. Preimplantation genetic diagnosis
• D. In situ hybridization

Answer: (B)

The method that involves obtaining fetal cells from amniotic fluid is known as amniocentesis. This procedure is performed by inserting a thin needle into the uterus through the abdominal wall to collect a small sample of amniotic fluid, which surrounds the fetus. This fluid contains fetal cells that can be analyzed for genetic abnormalities, such as chromosomal disorders, thereby allowing for early detection of certain conditions in the fetus.

Amniocentesis is typically offered during the second trimester of pregnancy, particularly to those at increased risk for genetic disorders. It is a valuable tool for prenatal diagnosis, providing critical information that can help parents make informed decisions regarding their pregnancy. The analysis of the fetal cells can help identify conditions such as Down syndrome, cystic fibrosis, and other genetic disorders, which is why this method is significant in prenatal care.