question: My Nan is 89 and is in hospital on a drip for fluids.  She was admitted 2 weeks ago with a water infection and is now on antibiotics for a chest infection.  She has dimentia and will not eat or drink anything and wont even take her medication. She is in an awful state not talking, unresponsive and now has chronic diarrhea. How long would she survive if she came off the drip providing her with fluids?