Which test is the least intrusive for detecting chromosomal abnormalities?
A) ultrasound
B) amniocentesis
C) chorionic villus sampling
D) noninvasive prenatal testing

Question

Quizplus · Accepted Answer

Noninvasive prenatal testing (NIPT) is the least intrusive method for detecting chromosomal abnormalities. It involves a simple blood draw from the mother, and analyzes the fetal DNA that circulates in her bloodstream. This test has a high accuracy rate for detecting common chromosomal abnormalities, such as Down syndrome, and carries no risk of miscarriage or other complications. Ultrasound, amniocentesis, and chorionic villus sampling all involve more invasive procedures and carry some risk to the pregnancy.

Which Test Is the Least Intrusive for Detecting Chromosomal Abnormalities