A patient is undergoing chorionic villus biopsy.Which of the following conditions can this test detect and assist in diagnosing? Select all that apply.
A)Neural tube defect
B)Cystic fibrosis
C)Sickle cell anemia
D)Cervical cancer
E)Down syndrome

Question

Quizplus · Accepted Answer

Chorionic villus sampling (CVS) is a prenatal test that involves taking a sample of some of the placental tissue. This tissue contains the same genetic material as the fetus and can be tested for chromosomal abnormalities and certain other genetic problems. Cystic fibrosis and sickle cell anemia are genetic disorders that can be detected through the analysis of DNA from the chorionic villi. Down syndrome, a chromosomal abnormality, can also be detected by examining the chromosomal makeup of the sampled tissue. Neural tube defects are typically assessed through maternal blood tests and ultrasound, not CVS. Cervical cancer is unrelated to the fetus's genetic material and is diagnosed through a Pap test and HPV testing of the mother, not through CVS.

A Patient Is Undergoing Chorionic Villus Biopsy