Fluid and electrolyte replacement are the mainstay of treatment to prevent and correct severe dehydration and acidosis. Oral rehydration therapy is usually sufficient unless the subject is vomiting, and/or losses are very severe. In the present case, IV management with isotonic NaCl followed by the administration of a solution containing dextrose 5% plus electrolytes to restore volume depletion and correct hypernatremia, respectively, were also necessary.