In the 17th week of her pregnancy,Penny Wills was asked to take the triple screen test as she had a family history of birth defects.Her doctor assured her that the test would take very little time and posed no risks to her baby.Which of the following prenatal diagnostic tests has the doctor asked her to undergo?
A)Maternal blood screening
B)Noninvasive prenatal diagnosis
C)Chorionic villus sampling
D)Ultrasound sonography

Question

Quizplus · Accepted Answer

The doctor has asked Penny Wills to undergo a triple screen test, which is a type of maternal blood screening. This test is used to screen for potential birth defects in the developing fetus and poses no risk to the baby. Noninvasive prenatal diagnosis (B) involves DNA testing of the mother's blood to detect fetal chromosomal abnormalities and is typically done later in pregnancy. Chorionic villus sampling (C) involves removing a sample of cells from the placenta to test for genetic abnormalities and is more invasive than a blood screening. Ultrasound sonography (D) is a noninvasive imaging test used to monitor the growth and development of the fetus but is not primarily used to screen for birth defects.

In the 17th Week of Her Pregnancy,Penny Wills Was Asked