Preimplantation genetic testing for aneuploidies (PGT‐A)
Preimplantation genetic testing for aneuploidies (PGT‐A), formerly known as preimplantation genetic screening (PGS), is an alternative method to select embryos for transfer in IVF. This test identifies the preimplantation embryos with a normal chromosome complement (euploid) during IVF. PGT-A improves pregnancy success by sifting out embryos with an abnormal chromosome copy number.