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 previously healthy 5-year-old boy is brought to the emergency department because of abdominal pain and vomiting for 6 hours. His mother immediately brought him after noticing that he had gotten into the medicine cabinet. The mother is 5 months' pregnant. He appears uncomfortable. His temperature is 37.2°C (99°F), pulse is 133/min and blood pressure is 80/50 mm Hg. Examination shows diffuse abdominal tenderness; there is no guarding or rigidity. Digital rectal examination shows dark-colored stools. Laboratory studies show:
Hemoglobin 13.2 g/dL
Leukocyte count 14,100/mm3
Serum
Na+ 136 mEq/L
K+ 3.3 mEq/L
Cl- 105 mEq/L
Urea nitrogen 26 mg/dL
Glucose 98 mg/dL
Creatinine 1.1 mg/dL
Arterial blood gas analysis on room air shows:
pH 7.31
pCO2 32 mm Hg
HCO3- 16 mEq/L
Intravenous fluids are administered. Which of the following is the most appropriate next step in management?"
assistant
Deferoxamine