 - Follicular phase 17-hydroxyprogesterone 250 ngdl for girls 12 years old or 300 ngdl for girls 12 and older confirmed on repeat, which suggests the possibility of congenital adrenal hyperplasia. NOTE: If an elevated follicular 17-hydroxyprogesterone is confirmed on repeat testing, an ACTH stimulated 17-hydroxyprogesterone 1000 ngdl will be required for study participation 