1 PGD, preimplantation genetic diagnosis, involves removing a cell from an IVF embryo to test it for a specific genetic condition (cystic fibrosis, for example) before transferring the embryo to the uterus.  PGS, preimplantation genetic screening, is the proper term for testing for overall chromosomal normalcy in embryos. PGS is not looking for a specific disease diagnosis - it is screening the embryo for normal chromosome copy number.
Taking too much Lamictal at the start of treatment may increase your risk of a severe life- threatening skin rash. You may need frequent blood tests to help your doctor make sure you are taking the right dose.
Laminitis is a possible side effect from any corticosteroid use in the horse. Be sure to discuss with your veterinarian the risk factors and how to monitor your horse for laminitis. Increased urination (polyuria), increased water consumption (polydypsia) and muscle wasting can be seen with prolonged dexamethasone use.