Hello and welcome to you Bcc.
Sepsis is a treatable condition/illness and you can recover if not fully but when the infection clears up things, hopefully will get a whole lot better for her.
I had viral encphilitis, got sectioned, DoLSO the whole lot and I post on here as a carer, all better now, back at home sat on the kitchen with a cup of coffee, sadly my wife (the reason I post on here) passed away while I was in a coma.
I assume that as I had a medical condition not dementia that I get treated differently to someone who has dementia, my strawberry blonde care worker came yesterday, next visit is Friday, she comes twice a week (all free, section 117 funded) and we just sit around and chat or have a wander round the shops.
Hopefully the sepsis can be cleared up and back to normal for her. Good luck. K