Which test is carried out 15 to 20 weeks into the pregnancy and allows the analysis of fetal cells that can identify a variety of genetic defects with nearly 100% accuracy?

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Amniocentesis is carried out 15 to 20 weeks into the pregnancy and allows the analysis of fetal cells that can identify a variety of genetic defects with nearly 100% accuracy. Chorionic villus sampling (CVS) is also a prenatal test that can detect genetic defects, but it is typically performed earlier in the pregnancy, between 10 and 13 weeks. Ultrasound sonography is a prenatal imaging technique that can provide information about the developing fetus, but it does not involve genetic testing. First-trimester screen is a prenatal blood test and ultrasound that can assess the risk of certain chromosomal abnormalities, but it is not as accurate as amniocentesis.

Which Test Is Carried Out 15 to 20 Weeks into the Pregnancy