This presentation will look at the different prenatal screening tests that are offered for early detection of open neural tube defects, trisomy 21, trisomy 18, and trisomy 13. The 1st trimester combined screen and 2nd trimester quadruple screens will be examined in detail, focusing on their methodology, performance, and interpretation of results. Non-invasive prenatal testing, chorionic villus sampling, and amniocentesis will also be presented.
Originally published on July 13, 2021
LJ Perry, MD
University of Utah School of Medicine