Thank you all for your suggestions. I still haven't had the heart to sit him down yet. Perhaps it is I that is more scared to talk about it, rather than me freightening my son. It's just a very difficult thing for me to deal with, as some of you know my father means everything to me.

He has since been moved into a care facility, and it is very nice. His doctor says he is doing a bit better, but again, you just never know.

Does anyone know if a DNR order is valid outside of the hospital? For instance, if something happens at the nursing center, will they withhold emergency treatment should he have a heart attack or something?