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can any vet do that? and does it cost a arm & leg? xrays around here hurt the pocket book bad.
The "medicine" is usually a liquid Barium that much be drank. It's a heavy element that works by absorbing x-rays thus allowing the radiologist to view the intestines (and other parts of the GI tract). It's actually a long procedure (about 1-2 hours), with x-rays taken at multiple stages to be able to track the barium movement. The downside of this Barium test is that bowels must be cleared out completely before, usually accompanied by the intake of Magnesium Carbonate (which is used as a powerful laxative), well...at least that's how the human version of the procedure works. If your dog is having issues with dehydration and vomiting, perhaps that test would make things worse for her...
Anyways, talk to a vet and see if the Barium test would be fine and definitely look into a CT Scan or MRI for her. Also, since she is anemic...perhaps some iron supplement could help?