Patti - my heart is breaking for you - I am so sorry for your loss. I don't even know what to say. It happened so quickly that I'm sure you are all just reeling. There are no words I have to offer that can help right now, but know that your mom is whole again and there will be no more suffering for her. Also know that there are tons of people here who care about you a great deal and are here when you need us.
When you are able, go to this link and watch/listen to "I Can Only Imagine" (there might be a short commercial first). It is what helped me when my aunt passed. I listen to this song very often, 2 years later.....
http://www.singingfool.com/default.a...dId%3D00658871