I noticed on one post that the cortisol results ranges seem really different from Canada. Can anyone on this board tell me if there is a difference between lab ranges from one country to another and if so what are the correct ranges in both countries. I live in Canada and am still searching for a good endo, but i may be going to the US if i don't get help here. Thanks much. Would appreciate ranges for all adrenal tests.....ACTH, cortisol, etc.