This document summarizes a presentation on non-invasive prenatal testing (NIPT). The presentation describes the history and current techniques used for NIPT, including analyzing cell-free fetal DNA from maternal plasma using massively parallel sequencing. It reviews the performance of NIPT in detecting common trisomies like Trisomy 21, with detection rates over 99% and low false positive rates. The presentation discusses the potential for NIPT to be expanded to more conditions and become a primary screening for all pregnancies.