Q. Can an obstructed intestine cause a low red blood cell count?
DAVID ELBEZE, DVM, MRCVS
A. unlikely, unless whatever is blocking the intestine has perforated it. one of the things we often see in obstruction is actually the opposite because the dog is vomiting and doesn't drink, he then becomes dehydrated and the red blood cell count actually goes to higher levels than normal (because of low ratio of fluids to blood cells). In case of perforation though there might be a constant bleeding that could cause mild to severe anemia (loss of blood). In order to determine what is causing the problem an ultrasound would probably be your best option.