(((Faith))),
I'm so very sorry you are feeling so upset over how your sister died. I guess all of us could look back and say "if only , I coulda, shoulda, woulda", but Faith don't blame yourself. Your point is a good one and perhaps something we should all be aware of , but don't blame yourself for what happened to your sister. All the pain and anger you are feeling is so natural at this point, but sometimes it's just best to let some things go. It wouldn't bring her back. I know you have to do what you feel is right for you, but I just want to let you know that many of us go through the blame game at some point or another. If it will help you , then question the decisions made by the medical profession, but it's so hard to prove wrong doing or cause... I do understand and my heart goes out to you. God Bless you.
Hugs,
Sue