First, I'd get a second opinion
Did the vets rule out HGE (Hemmorhagic Gastroenteritisi)? Send her home with any medications?
If she's not on probiotics/digestive enzymes (found in normal gut) I would get her on them.
When the lining of the intestines becomes inflamed, it creates habitat for bad bacteria, and will cause bloody stools.
Double the dose of probiotics/digestive enzymes to increase the good bacteria, help flush out the bad, and give her the tools she needs to digest her food.
Bland diet: Baby food chicken (offer every 2 hours, small amounts)(after keeping that down 2-3 days, introduce I/D gradually.) Nutrical supplement every 2 hours.
Offer Pedialyte
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Keep her warm, and interact with her often if not almost constantly.
PS. Very sorry about your Dad's passing.