My yorkie has been vomiting alot lately so I called the vet and he said he might have eaten something that is causing a blockage in his stomach. So I need to take him in tomorrow to have an X-ray taken. I was just wondering, how do they do that? Does the dog need to be sedated? I hope not. I am so nervous. I hope the X-ray doesn't show anything because if it does then he needs to have surgery, AGAIN