Please let us know how she is doing, Sheryl.
We are interested in whether she continues down or starts up. If she continues down and gets into the 40 range, I would get some of the gravy from the higher carb food and give her some of that. If she continues down, please post on Health with a 911 and ask for help. I will only be around for another hour.
If she is moving up, that will be great. Let's see what Carl thinks, but I would think she needs a little less insulin. Maybe the scale needs a little tweaking. Any time you get a number under 200 (until you have more data and know how she will probably react) retest without feeding. You want to make sure she is headed up, not down and that the number is nearer 200.
Frightening for Mom, but really good news. She is doing very well, going down in dose and down in numbers.