Well after two days at the center we came home with new meds and new things to try. They changed up his meds a lot. Their read on the situation was that it was highly likely connected in part to his medication regimen. We decided to makes some changes with it and see how he responded before doing other things. I also took some good advice from this site and once he was more alert and engaged we developed a plan for tracking his input much more explicitly. One day home, adequate hydration and nutrition and he seems so much better already. So thank you for all of the support and encouragement. Great ideas.