A 21 pound, nine year old spayed female Shih Tzu was presented to the Oradell Animal Hospital at 3 a.m. on Sunday morning with a complaint of anorexia, lethargy and vomiting for the past two days. The dog's previous medical history was unremarkable, except for being hit by a car in November 1983. A right ilial fracture sustained at that time had been plated. The animal was current on all routine vaccinations.