I'm surprised that the cat was even concious with that glucose level. Has he ever been tested for diabetis? I had 2 dogs and a cat that were diabetic and occassionally they would crash really low and I would have to give Kayro Syrup to bring the sugar back up. I could tell when they crashed since they would get confused and lethargic - and cold. Don't know if this helps any, but I do relate to the symptoms.