Esperanza, who is in the 11th week of her pregnancy, is undergoing a prenatal diagnostic test that involves the removal of a small sample of the placenta. The doctor informs her that the test may detect any genetic defects and chromosomal abnormalities in the fetus and that she will have to wait for at least 10 days for the diagnosis. In this scenario, which of the following prenatal medical procedures is Esperanza most likely undergoing?
A) Chorionic villus sampling (CVS)
B) Amniocentesis
C) Noninvasive prenatal diagnosis (NIPD)
D) Triple screen

Question

Quizplus · Accepted Answer

Chorionic villus sampling (CVS) involves the removal of a small sample of the placenta to diagnose any genetic defects or chromosomal abnormalities in the fetus. The test is usually performed in the 10th-13th week of pregnancy, and results can be obtained within 10 days. Amniocentesis is another prenatal diagnostic test that involves the removal of a small sample of the amniotic fluid, but it is usually performed in the 14th-20th week of pregnancy. Noninvasive prenatal diagnosis (NIPD) is a newer technology that uses a maternal blood sample to analyze fetal DNA for genetic disorders, but it is not commonly used for chromosomal abnormalities. Triple screen is a maternal blood test that screens for various fetal abnormalities, but it does not involve the removal of any tissue samples.

Esperanza, Who Is in the 11th Week of Her Pregnancy