Thanks George, Anji. I'm going to phone the vet tomorrow and cancel the next appointment but I will ask to speak to the vet rather than the receptionist to explain my reasons. Raven has only had the one tablet out of the 2nd lot of antibiotics, I'm not going to give her any more. I'm considering changing vet. I've not had any problems with them until now but the fact I challenged this several times and was still dismissed has angered me. The X-Ray's and surgery are performed at a different location to my routine appointments so it wasn't the vet we normally see who did the blood tests. I'll phone the regular one, hopefully she will be more aware of what the readings should be!