A 64-year-old man presents with sudden, intractable, generalized abdominal pain that began 2 hours ago. His medical history is significant for coronary artery disease, chronic obstructive pulmonary disease, and daily naproxen use for severe osteoarthritis. Vital signs show a temperature of 38.6°C (101.5°F), blood pressure of 86/52 mmHg, heart rate of 124/min, and respiratory rate of 28/min. Physical examination reveals a rigid, board-like abdomen with severe diffuse tenderness, rebound, and involuntary guarding. An upright chest radiograph demonstrates free air under the right hemidiaphragm. The surgical service is consulted, and an emergent exploratory laparotomy is planned.
Which of the following interventions are essential components of this patient's immediate preoperative management? (Select all that apply)
- Intravenous administration of broad-spectrum antibioticsCevap
- Rapid intravenous infusion of isotonic crystalloidsCevap
- Placement of a nasogastric tube for gastrointestinal decompressionCevap
- DComputed tomography of the abdomen and pelvis with oral contrast
- EPreoperative transthoracic echocardiography for cardiac risk stratification