Acute Abdominal Pain Management

Diagnostic Considerations

The American College of Gastroenterology recommends examining for peritoneal signs (rigidity, rebound tenderness, absent bowel sounds) indicating perforation requiring immediate surgical consultation 1, 2
Perforated peptic ulcer manifests with sudden, severe epigastric pain becoming generalized, accompanied by fever, abdominal rigidity, and absent bowel sounds, with mortality reaching 30% if treatment is delayed 1
The American Heart Association suggests obtaining an ECG within 10 minutes of presentation—never rely on a single troponin measurement, obtain serial troponins at 0 and 6 hours 1, 2
Myocardial infarction presents atypically with epigastric pain as the primary manifestation in women, diabetics, and elderly patients, with mortality rates of 10-20% if missed 1, 3
The European Society of Gastrointestinal Endoscopy recommends ordering serum amylase (≥4x normal) or lipase (≥2x normal) immediately to exclude acute pancreatitis, which has 80-90% sensitivity and specificity 1, 2

The American College of Surgeons advises checking vital signs for tachycardia ≥110 bpm, fever ≥38°C, or hypotension, which predict perforation, anastomotic leak, or sepsis 1, 2, 3
The Society of Critical Care Medicine suggests maintaining NPO status until surgical emergency is excluded 3
The American Gastroenterological Association recommends avoiding NSAIDs as they worsen PUD and bleeding risk 1, 3
The European Society for Emergency Medicine advises obtaining immediate surgical consultation given the combination of epigastric/periumbilical tenderness, vomiting, and obstipation 1, 4

The American College of Emergency Physicians recommends hospital admission for observation, serial examinations, and definitive imaging 1, 2
If imaging reveals peptic ulcer disease without perforation, the American Gastroenterological Association suggests starting high-dose PPI therapy (omeprazole 20-40 mg once daily) and admitting for observation 1, 3