system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 46-year-old man is brought to the emergency department because of severe epigastric pain and vomiting for the past 4 hours. The pain is constant, radiates to his back, and is worse on lying down. He has had 3–4 episodes of greenish-colored vomit. He was treated for H. pylori infection around 2 months ago with triple-regimen therapy. He has atrial fibrillation and hypertension. He owns a distillery on the outskirts of a town. The patient drinks 4–5 alcoholic beverages daily. Current medications include dabigatran and metoprolol. He appears uncomfortable. His temperature is 37.8°C (100°F), pulse is 102/min, and blood pressure is 138/86 mm Hg. Examination shows severe epigastric tenderness to palpation with guarding but no rebound. Bowel sounds are hypoactive. Rectal examination shows no abnormalities. Laboratory studies show:
Hematocrit 53%
Leukocyte count 11,300/mm3
Serum
Na+ 133 mEq/L
Cl- 98 mEq/L
K+ 3.1 mEq/L
Calcium 7.8 mg/dL
Urea nitrogen 43 mg/dL
Glucose 271 mg/dL
Creatinine 2.0 mg/dL
Total bilirubin 0.7 mg/dL
Alkaline phosphatase 61 U/L
AST 19 U/L
ALT 17 U/L
γ-glutamyl transferase (GGT) 88 u/L (N=5–50 U/L)
Lipase 900 U/L (N=14–280 U/L)
Which of the following is the most appropriate next step in management?"
assistant
Crystalloid fluid infusion
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