April, the only thing I can think of offhand is a Skilled Nursing Unit (SNU.) However, people generally come from hospital care to that. Also, if your mom is being discharged soon, she would probably not qualify medically. As far as insurance goes, unless she has long term care insurance, the only thing she would probably be eligible for is a nursing home. The only other option would be to see if she can get visiting nurse care, based on the fact that she is living alone. A nurse would come in every day, or several times a week, and make sure she is taking her medication/lactulose properly and that she has enough; check her lungs and BP, etc. If the nursing home could recommend this as part of their discharge plan, insurance would be more likely to approve it.
I suggest you talk to her caseworker at the NH and the case manager with her insurance provider.
Hugs,
Connie