A 52-year-old male with a surgical history of an open appendectomy 10 years ago presents with severe, colicky abdominal pain, intractable vomiting, and failure to pass flatus for the past 24 hours. Vital signs reveal a heart rate of 105/min and blood pressure of 115/75 mmHg. Examination shows a distended, tympanitic abdomen without rebound tenderness or guarding. Arrange the following interventions in the most appropriate chronological order for his initial evaluation and management.
- 1Initiate nil per os (NPO) status and begin intravenous fluid resuscitation.
- 2Insert a nasogastric tube to decompress the upper gastrointestinal tract.
- 3Obtain a computed tomography (CT) scan of the abdomen and pelvis.
- 4Admit the patient to the surgical service for nonoperative management and serial clinical examinations.
Answer
The correct sequence is to first initiate NPO status and IV fluids, then insert a nasogastric tube, followed by obtaining a CT scan, and finally admitting the patient for serial examinations.
The standard sequence for managing a stable patient with a suspected uncomplicated small bowel obstruction is to first address their volume status (NPO and IV fluids). Next, a nasogastric tube should be placed to relieve the symptoms of obstruction and prevent pulmonary aspiration. Once stabilized and decompressed, it is safe to transport the patient for a CT scan to confirm the diagnosis and verify that there is no bowel compromise. Finally, because there is no evidence of peritonitis, the patient is admitted for conservative, nonoperative management.
Step-by-Step Solution
Key Concept
The initial management of an uncomplicated small bowel obstruction strictly prioritizes hemodynamic stabilization, followed by symptomatic bowel decompression, diagnostic imaging, and finally, nonoperative observation.