Hot water will set a stain, so always rinse first in cool water to try and remove as much as you can. After that, I would have applied some Shout, let it sit a few minutes, then wash with a mild detergent. My daughter loves colas and I've used this method a time or two to get it out of finished quilts with excellent results. :-D
As for blood on a quilt, I was watching an episode of Simply Quilts a few years ago and Alex Anderson said the best thing for getting blood off your quilt is your own saliva. I've never had to test this myself, but she said it works every time. :D