[PennysMum]

TBH, if you have any reason to think that a shunt is possible in your dog, I'd just do the test even if you've had no previous bloodwork done. A lot of people routinely test their yorkie pups just because the condition is SO terribly common in the breed. Just the fact that you have a yorkie should be enough reason for the vet to run the test! It should be no different than a german shepherd owner wanting to do a routine x-ray of their dog's hips, or an owner of a dog of a breed with notoriously bad teeth like a miniature dachshund or a shih tzu insisting on regular dental cleanings even before the teeth get bad.

If you don't have a vet who knows a lot about the breed in your area, you could just try to find someone who is open-minded and willing to listen to you and take into account your concerns. Even if the vet isn't an expert, you may be able to get pretty far with somebody who is willing to work and learn along with you...