What is a common initial approach to managing acute gastroenteritis (traveler's diarrhea) in the deployed setting?

• A. Oral rehydration and electrolyte replacement; if indicated, antibiotics per guidelines.
• B. Immediate referral for surgery.
• C. Fasting and bed rest.
• D. Daily injections of steroids.

Answer: (A)

The priority in this scenario is preventing and correcting dehydration with oral rehydration and electrolyte replacement. In austere, deployed environments, oral rehydration solutions provide a safe, practical way to restore fluid and electrolyte balance quickly without needing IV access. This approach addresses the main risk of acute gastroenteritis—dehydration—so it’s the first step you should take.

Antibiotics are not given to every case; they’re added only when guidelines indicate they’re appropriate for traveler’s diarrhea, taking into account illness severity, fever, blood in stool, duration, and regional resistance patterns. When needed, the antibiotic choice is guided by local guidelines and resistance data, not chosen automatically.

Supportive care can also include zinc for children, with careful monitoring and a plan to escalate to IV fluids if dehydration worsens or the patient cannot keep fluids down. Fasting, surgery, or daily steroid injections do not address the dehydration and are not appropriate as initial management for uncomplicated cases.