She asked for the vent to be replaced and it wasn't. That tells me someone had made a decision besides her as she was fully capable of making a decision.
Pulling the feeding tube out indicates she fully expects to die or assumes they want her too as they wouldn't replace the vent.
Definately they need to keep her sedated until she passes.
The vent thing strikes me as wrong.
When I die I'm sure to go to heaven, cause I spent my time in hell.
You get more with a kind word and a two by four, than you do with just a kind word.