Medical Help for My Grandma

As you all know my 85 year old grandmother was found unresponsive in my home, June 9th 2019 around 8:32 am.  When I got to my grandmother , she was just skin and bones and very very cold ... gasping for air ( sounding like a whistle ) I couldn’t believe you own eyes. I called 911 where I was prompt to grab my grandmother and put her on the floor but it felt as though I was going to break her how thin she had got over night ... her face was sunken in and her eyes were open. Never have I did CPR before but I had to learn with the help of the operator and a neighbor of mine. So as of today , my grandmother is in ICU were she’s trying to breathe on her own again but it’s a very very tough call. Doctors want to take the tube from her air wave out to see if she will survive without her air wave closing up but this a very very tough call. My grandmother has dementia and high blood pressure. She have survived 3 strokes ( 2 mild ones to the brain ). Medical cost is now an issue & you all know how that goes , on top of her being up in age. I WILL NOT GIVE UP ON HER BECAUSE I KNOW SHE WOULDN’T have for me !!!