PGT, or preimplantation genetic testing, is a procedure used to identify genetic abnormalities in embryos prior to implantation during IVF treatment. There are several synonyms associated with PGT, including preimplantation genetic diagnosis (PGD), embryonic genetic testing, and embryo screening. Other terms that may be used interchangeably with PGT include genetic testing of embryos, genetic profiling of embryos, and genomic analysis of embryos. While the terminology used may vary, the purpose of the procedure remains the same - to identify and select embryos with the greatest chance of leading to a successful pregnancy and healthy baby.