Betty, when I was facing first surgery and a trach and a PEG, then rad and chemo, I absolutely wanted to know everything I could about it. My thinking was that if I knew the worst it could be, I could psych myself up to take it. When I did know the worst and all the gorey details, it wasn't nearly that bad, so I felt I got off easy. Only you know your sister well enough to tell if she wants all the info, but if she does, I recommend you hold nothing back. An informed patient feels more in charge and less buffeted by the system. Good luck to both of you.