A 39-year-old woman is in her sixth week of pregnancy.Due to her advanced maternal age,she is at high risk for having a baby with Down's syndrome.She would like to find out as early as possible whether or not her baby has Down's syndrome.Her doctor suggests
A)amniocentesis.
B)genetic counseling.
C)chorionic villi sampling.
D)a pedigree analysis.

Question

Quizplus · Accepted Answer

Chorionic villi sampling (CVS) is a prenatal test that can detect Down's syndrome and other genetic disorders in a developing fetus. It involves taking a sample of cells from the placenta, which contains genetic information about the fetus. CVS can be performed as early as the 10th week of pregnancy and has a high accuracy rate. However, there is a small risk of miscarriage associated with the procedure. Given the woman's advanced maternal age and desire to know as early as possible, CVS would be the best choice. Genetic counseling may also be a helpful resource for the woman to discuss her options and any potential risks or concerns.

A 39-Year-Old Woman Is in Her Sixth Week of Pregnancy