Prenatal Screening for Open Neural Tube Defects and Aneuploidies


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

Lecture Presenter

LJ Perry, MD

LJ Perry, MD

University of Utah School of Medicine

Dr. LJ Perry studied at Brigham Young University where he obtained a BS in Microbiology. He then completed his MD at the University of Texas Medical Branch.


After this presentation, participants will be able to:

  • Understand the diseases detected by prenatal screening
  • Identify the analytes, measurements, and methodology used in prenatal screening
  • Interpret the results using multiple of the median and risk analysis

Sponsored by:

University of Utah School of Medicine, Department of Pathology, and ARUP Laboratories