J.E.
I had mine out a couple of years ago. Mine was functioning at 8% and took a long time to diagnose.
Surgery was outpatient and ate light for a couple days and just took it easy for about 5 days. She'll be limited on lifting as pain allows.
Get her some new magazines, books or movies and let her veg out.
Also, walks are good post-surgery to help get all the air out they pump into you (think its so they can get a good look at your organs).
Good luck!