A Rough Back Ground Of Friend's Mother ...60 Year Old

A rough back ground of friend's mother ...60 year old diabetic woman got septic shock for 2 times within 16 months and hand toes and leg toes got affected with wounds and now she is bed ridden because of toes are having wounds continuous... she gets her pus cells count high regularly! what can be the scenario?...does she have kidney failure? but how can she survive without dialysis for long?