A 1.5 year old male cash·ated rabbit was presented to the Cornell University Hospital for Animals' Small Animal Emergency & Critical Care Service for acute lethargy. The patient was chased but not caught by a dog earlier that day, after which the patient became depressed, weak, and lethargic. On physical examination, the patient was obtunded and reluctant to move, with purple-gray mucous membranes and weak femoral pulses. Point-of-care bloodwork results revealed a severe metabolic acidosis, hyperlactatemia, and hyperkalemia. The patient was stabilized with intraosseous fluid therapy, buprenorphine, enrofloxacin, and calcium gluconate, and placed in an oxygen cage. Results of additional bloodwork performed the next day showed elevated kidney values (BUN and creatinine) and liver enzymes (ALT and ALP). Urinalysis results revealed acidic urine and a large amount of heme, which was determined to be myoglobin due to the absence ofhemolysis in the blood.