Thanks for that link, littlecakes! That's a great resource.
The Blandings turtle is doing remarkably well. I let her soak in a tub for a couple of hours a day and then dry dock her at night. She's eaten a few worms and a cricket and has pooped again, so I think she is going to recover just fine. She also comes out of her shell much more often now than she did during the first few days. I am going to wait a few more days until she appears stronger and takes a few more meals, then I will return her to the wetlands near where she was run over. I'll post some more pics too when I get a chance.