Another aspect I never realized is that the person being treated is sometimes completely cognizant of all that's going on, and is in fact the one making the decisions. I can't imagine being in those shoes, but I suppose it's easier to decide for yourself than to decide for other people.
Anyway. I'm flying to Florida tomorrow to be with my family. And possibly to see my grandmom, and possibly not, depending on how the next 18 hours go for her. Either way is OK, I think.