DNRs do get changed and many doctors and nurses just don't seem as interested in doing all they can for elderly patients.
From experience, I can tell you outcomes depend a lot on how much fight the person still has.
I'm sorry you are going through this. I went through the same with my father and grandmother. It's hard.
God bless both of you and help you and your family through this trying time.
I've seen this, and agree...
I am from Syracuse NY.... Kind of went thru something similar w my father. Is she at crouse irving? U may need to move her or demand another doctor. As stressful as this is, it will save her life.