Although PGT is highly accurate, there is a chance for test error or undetected mosaicism in an embryo. Thus, prenatal diagnostic testing with either chorionic villus sampling (CVS) or amniocentesis should be considered for pregnancies conceived via IVF with PGT. The decision to proceed with prenatal diagnostic testing should be made between a patient and their doctor. Natera also offers Panorama, a non-invasive prenatal test (NIPT), that can be used as a first-line screen for common chromosomal abnormalities without risk of miscarriage.