A 64-year-old man is brought to the emergency department by paramedics after his wife found him lethargic and confused at home. She reports that he had been complaining of progressive, severe upper abdominal pain and nausea over the past three days. His past medical history is significant for osteoarthritis, for which he takes high-dose ibuprofen daily, and hypertension. On physical examination, the patient is obtunded and profusely diaphoretic. Temperature is 39.4°C (102.9°F), blood pressure is 72/40 mmHg, pulse is 132/min, and respirations are 28/min. Pulse oximetry is 93% on room air. Cardiopulmonary examination reveals tachycardia with distant heart sounds and rapid, shallow breathing. Abdominal examination demonstrates a rigid, board-like abdomen with diffuse rebound tenderness and involuntary guarding. Bowel sounds are absent. Which of the following is the most appropriate initial step in the management of this patient?
- Administer intravenous crystalloid fluids and broad-spectrum antibioticsAnswer
- BObtain an upright plain radiograph of the chest and abdomen
- CConsult general surgery for an emergent exploratory laparotomy
- DObtain a computed tomography scan of the abdomen and pelvis
- EInitiate a continuous intravenous infusion of norepinephrine