Certain breeds, together with the Greyhound, Whippet, Sloughi, Saluki, Basenji, Irish Wolfhound, and some Alaskan sled dogs, have ranges of thyroid hormone that differ from the norm. Dogs being treated for epilepsy could also be incorrectly identified as having hypothyroidism as anticonvulsant treatment used to treat epilepsy can alter the results of exams that measure thyroid hormone levels. Inadequate ranges of thyroid-stimulating hormone causes a lower in thyroid hormone synthesis and secreti...