Being recently diagnosed with Dementia is not really an issue unless her physician has stated that it is rapidly increasing or can be controlled with meds. The issue as to the bed sore - I suggest you take her to a hospital. The rehab is for physical therapy - not sure they can handle bed sores. Check her coverage and speak to the person in charge at the rehab. Then contact her physician and see what he advises. Take that information into account before you do anything.
Being recently diagnosed with Dementia is not really an issue unless her physician has stated that it is rapidly increasing or can be controlled with meds. The issue as to the bed sore - I suggest you take her to a hospital. The rehab is for physical therapy - not sure they can handle bed sores. Check her coverage and speak to the person in charge at the rehab. Then contact her physician and see what he advises. Take that information into account before you do anything.