It looked to me like she was already doing that from her original post, though she doesn't specifically say it. If she isn't already hiking above 10,000 feet or at least 8,000 feet, she ought to at least try a 10,000+ foot peak a few days prior to see how she reacts and if possible spend a few days at 8,000+ feet. I've never had AMS (as far as I know) so it's hard for me to say what works and what doesn't. I did hike up Mt Dana 3 days before Whitney just to make sure elevation still had no serious affect on me, but just as a test.
