A 4.5-year-old castrated male domestic shorthair cat was evaluated at the University of Missouri Veterinary Medical Teaching Hospital emergency service because of acute ataxia that progressed to recumbency and decreased responsiveness. The cat was housed at a local car mechanic garage and was last observed to behave normally 9 hours prior to the evaluation. Previous medical history was unremarkable, and no medications were being administered to the cat.
Clinical and Clinicopathologic Findings
Upon examination, the cat was assessed as 7% dehydrated, laterally recumbent, and minimally responsive, with a rectal temperature of 35.6°C (96.1°F). Both third eyelids were prolapsed; no