I took my father to the hospital on Monday, with the use of his walker he went in on his own. He was moved to an inpatient rehab facility Thursday afternoon, and he is completely out of it, moaning, major muscle tremors, and just seems completely miserable and in pain. He doesn't even know I'm there, and will most likely be moved to a nursing home since no rehab can be done at this point. Is this common for such a drastic decline over a couple days? Will he stay like this or could he improve? It is a terrible quality of life if this is how he will be.
The one thing that I learned about Parkinson's, is that it is natural to decline, and then rally.
So, in answer to your question.......What can I expect?
You can expect him to rally!
Can you get the doctor to order massage so he can walk again?
Anyway, there are certain medications that cause Neuroleptic Malignant Syndrome, which is quite dangerous for these patients. Any anticholinergic drug can also be dangerous for Lewy patients. My DH was hospitalized and they gave him Haloperidol, and it caused these symptoms. Only after the hospitalization was he diagnosed with Lewy Body Disease.