I work in a laboratory in a hospital, but my labs get sent to the Mayo Clinic in Rochester, MN.  My endo feels more comfortable with their testing.  These are the ranges that I have, but it is very difficult to keep CAH patients within these "limits".

17-OH:    Children-  Newborns: < 630 ng/dL

                                    Prepubertal males: < 110 ng/dL

                                    Prepubertal females: < 100 ng/dL

                 Adults-  Males: < 220 ng/dL

                                Females-  Follicular: < 80 ng/dL

                                                   Luteal: < 285 ng/dL

                                                   Postmenopausal: < 51 ng/dL

I have to do a little more research on the renin activity, because there are different methods of checking the renin, which could lead to different ranges, and I don’t want to spook anyone if it is not the same test.