I thought I better add something to my previous message. One of the tests my son has done is for 17 Hydroxyprogesterone. In my previous message I refered to this as 17 OHP. I guess I am not sure it they are the same thing. As I look through my materials I see a 17 hydroxypregnenolone . . . I guess a little knowledge can be dangerous. Bottom line if 17 OHP = 17 Hydroxyprogesterone all in my previous message is fine. If 17 OHP = anything else, please read my previous message to mean 17 hydroxyprogesterone. Sorry to be so confusing.Chris