Bottom line: Assuming that Wednesday's measurements were "normal," then Sunday's were at least 10 points higher than normal and Saturday's were more than 50 points higher! This is "low-dose" dex - it's no wonder that high-dose dex gives people the symptoms of diabetes and sometimes even gives them the real thing.
Here is a TABLE showing actual measurements and times. It also has links to photos of the meals that were eaten.
Below is a chart of the same thing. Click to enlarge.