A 7 1/2-year old female Irish Water Spaniel, became acutely ill a few hours following its evening meal. Abdominal pain, unproductive vomiting, gaseous sounds, and abdominal distention were noted by the owner. The condition became progressively worse and collapse occurred 12 hours after onset of symptoms. When presented to the Iowa State College clinic the following symptoms were noted: 1. prostration, 2. severe shock, 3. marked abdominal distention, 4. tympany over the entire abdominal area, 5. marked dyspnea, 6. pale and cyanotic mucous membranes, 7. very rapid heartbeat and weak thready pulse, 8. depressed temperature (99° F.) .