We used to use peroxide to get blood out of our uniforms. The only trouble with peroxide is you have to wash it out really well, or it will eat your fabric.

Don't know if it would work on a quilt, but I have used Shout to get coke stains out of t-shirts.

You might try soaking it in Clorox 2. I've had very good luck getting stains out of clothing with it. It's colorsafe. I've used it many times.

I'm a diet coke addict and surprised it didn't come right out with water. Try Oxyclean or white vinegar. Peroxide works on blood, not sure it'll help here or not. Don't dry it or it will be set forever. Good luck, this will surely happen to me one day, though I try to drink favored selzer water in the sewing room. One of the many blessings in sewing is that when I'm sewing, I'm not eating.

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

If you can't remove...Give note with explanation and "quilt to come at later date"...This way you have time to redo another.
OH and maybe if you going to use the same top...include a picture of the top...

I use a bar soap, like Fels Naptha or Octogon, something that is JUST SOAP, not detergent for odd stains. Before you wash in the washer rub the soap on and prewash. It almost always works.

I use Shout, then I hollar at the stain, "get out, get out". I hate that after all that hard work. But I know you will get the stain out.

I am sorry this happened but dont beat yourself up. Explain what happened and tell her you'll get a gift to her as soon as you can. I wouldn't give her the quilt with a stain on it.

Following are several ideas:

Resolve stain remover for laundry, Shout, Mr. Clean Magic Eraser, Grandma's Secret Spot Remover, make a paste of the Oxygen/Oxyclean and work with a washcloth in small areas, rinsing well, white vinegar on a rag blotting the area, soda seltzer water.

Good luck, keep us updating on the outcome.

Pam M