Hi,
Don't confuse the fasting thing with the actual going on the pump bit! From memory, what you nurse suggested was what I did..but this was only teh night before going on teh pump. Basically, you are going to get insulin fro teh pump...and if you get this, combined with you long term insulin, you are going to hypo quickly. It did make my blood sugar very high that morning...but it was just one morning. I thihnk the first thing I di was a correction bolus!
The fasting thing is something that you can do when you are onl the pump. when they set you up, they "err on the side of caution, and seem not to give you enough insulin", and you then adjust it as you get used to teh pump. the fasting allows you to set your back ground level. Typically, when you start, they have you on a certain lvel that is teh same all day and all night. For me, I knew that this was never going to work, as I always go high in teh mmorning. Sure enough, this is what happened. So, teh next night, I fasted and measured my blood sugar every 2 hours, while the pump did its normal back ground rate. thsi allowed me to look at what time I needed to increases my rate, and also decrease it...as what youare seeing is what you body needs, without food, to maintain a good blood glucose reading. They say that you should try and do a few 8 hour fasts, to get each section of the day correct for you. Of course, if teh rate they set you on works..there is no need to fast and test.
Best of luck in september!