Middle-aged daughter, diabetic, now with nephrotic syndrome, edema, in hospital.

She lives alone and has never tended to her diabetes very well - ate cake nightly, etc. Fairly hard-headed, though amenable to advice and help at times of trouble. She's needy psychologically and monetarily, on SSDI and Medicare.

Last weekend she fell out of bed and was on floor for 14 hrs, her fluid-filled legs not able to support her getting up.
She finally crawled to her phone, called 911, and was transported to ER and admitted to hospital, where she remains eight days later and will stay until at least Monday, when arrangements have been made for her to go to rehab in a nursing facility. She had muscle breakdown due to being the floor so long, was considered critical at first, then down-graded to serious. More fluid was given by IV to protect the kidneys. The extra fluid - ten liters- has largely left her body, but legs, feet, body, hands are still large with fluid.
The physicians - internist and nephrologists- at the large teaching hospital seem competent.

I suspect she will remain in rehab the maximum allowable under Medicare - 20 days-, but am at a loss as to what is the best course for her after that, in order that she eats properly and tends to her body's needs.

Thoughts and advice in this area would be appreciated.