I have a friend of my sister who has been diagnosed with a blood glucose of 15+++++ . I don't know how that compares as I work on HBA1c levels having reduced mine from 91 to 51, but I know she is going to contact me for advice, I do NOT want to get involved but can anyone tell me how that relates to what I know and understand?? She will go into this in the minutest of details add that to the A F she has, the constant food fixations , portion control..........she is a very old friend BUT!!!!!!!!!!!! She has bought the Carb and Cal book and is in for the biggest of shocks when she sees portion sizes. I just would like to know what 15 relates to. Random blood test followed by a fasting glucose at her GPs in Glasgow. As I said, I don't want to get involved but am sorry as she has had a lot of stress recently which I do believe can contribute to the onset. I just would like to be forewarned........