Update II: How I Spent My T-Giving Vacation
Well, Mom came through the surgery earlier today in great shape. They only did one artery - the one, turns out, that was 95% blocked. The other is 80-85% blocked so they'll wait and give the one they did today a chance to start healing up before they tackle the remaining one. Pretty decent news, all things considered. Thanks to everyone for all the good thoughts and wishes.