Thank you for posting your query.
She appears very sick as per your description. You need to discuss with her treating doctors regarding her likely outcome including death.
However, important things to be kept in mind while taking care of an unconscious patient are- pain relief, providing adequae oxygen
, good nutrition and fluid balance, prevention of bed sores, prevention of deep vein thrombosis
I hope it is helpful.
Dr Sudhir Kumar MD DM (Neurology)