Thanks for your message. My son is now 10 months old. The older he gets he seems to be fussier. I thought that it was teeth. He has cut so many at one time. He takes .1mg of Florinef 2 times a day now. Last week that backed him off of 6cc’s of salt to 4cc’s of salt daily. The doctors that I see only do the 17 hydroxy progesterone test and I have never heard of the other test you mentioned. What does this check for?DaltonsMom