Does Dr. Speight use growth hormone replacement therapy?
We screen for growth hormone deficiencies using IGF-1 levels and if low, arginine stimulation testing. If patients fail these two tests they may be candidates for growth hormone replacement therapy, but the criteria are strict and patients are only started on growth hormone if they are felt to be appropriate candidates and their lab work confirms a true deficiency: IGF-1 less than 84 and/or failure to reach a GH level of 8-10 on an arginine stimulation test.