This is Ardie with a brief update...
Sandra walked into surgery just before noon today. She was doing well, but was very nervous. I won't know anymore for about 4-5 hours or more, so look for another update later this afternoon or evening once she's out of surgery again.
They did give her antibiotics already before the surgery, so I'm thinking they are being very cautious with the risk of infections because of her low blood levels.
Thanks for all your prayers!