2016 ACVIM Forum Research Abstract Program

The wide range in the published specificity of the AST may be related to large variations in cortisol responses. The etiologies, concurrent diseases, and clinical signs associated with hypercalcemia in cats have been reported in the past based only on measurement of total calcium and excluding cases of idiopathic hypercalcemia (IHC). Here we report on the relative frequency of various diagnoses and concurrent clinical signs associated with ionized hypercalcemia in cats. The medical records of an academic institution that treats primary and secondary cases was searched for cases treated between the years 2003-2013. Cases were included if serum or plasma ionized calcium concentrations were above the upper limit of the reference interval at least twice. Cats were excluded if ionized hypercalcemia was not present on follow-up examination or if a final diagnosis was not made.