My dog got kicked by my horse last Sunday. Her right hind leg was dislocated below the ankle, and emergency reset her leg and put a splint on it. She was given some medication at emergency, and she had a pain patch on her other hind leg. My concern: her poop has blood (samples on Wed and Fri). My vet wants to check her on Mon, and I am concerned that she may have some internal injuries. She seems fine, and she does not seem to have pain anywhere other than her leg. Do you think the medication may have caused the blood in the stool??