A 71-year-old male is transported to the emergency room by ambulance due to profound weakness and severe abdominal distress that began abruptly 6 hours ago. His medical history includes ischemic cardiomyopathy and chronic atrial fibrillation. He was recently transitioned off oral anticoagulation prior to a planned invasive dental procedure. Currently, his temperature is 38.8°C (101.8°F), blood pressure is 76/42 mmHg, heart rate is 135/min and irregular, and respiratory rate is 28/min. Cardiopulmonary examination reveals a rapid, irregularly irregular rhythm. Abdominal examination demonstrates diffuse board-like rigidity, exquisite tenderness to light palpation in all four quadrants, and completely absent bowel sounds. Initial venous blood gas reveals a pH of 7.18 and a lactate level of 8.9 mmol/L. Arrange the following steps in the most appropriate sequential order for the management of this patient.
- 1Establish large-bore intravenous access and administer rapid isotonic crystalloid boluses
- 2Administer empiric broad-spectrum intravenous antibiotics
- 3Transport immediately to the operating room for an exploratory laparotomy
- 4Resect nonviable bowel and perform a temporary abdominal closure without anastomosis
- 5Transfer to the surgical intensive care unit for continued physiological resuscitation