Steroids do increase blood sugar. That is all I know about it. I can't say that my symptoms ever correlated, as I am not diabetic, I do test my own BS now and then tho. I never had an elevated fasting glucose until I was on IV steroids for 16 weeks, then it was high....after that, it eventually went back to normal.

I do know that some PN has been correlated to abnormal glucose tolerance tests. I have heard that it is good to get a glucose tolerance test if you are diagnosed with PN. I have asked about it, but my docs don't seem to enthusiastic about doing it.

Post prandial blood sugars of 155 are not that unusual or abnormal. The 79, while you were eating, indicates a normal range, and that the food you had eaten had not yet hit your digestive system.