Ondansetron: Has it reduced need for IV rehydration in vomiting kids?
A 3-year-old male presents to the emergency department (ED) complaining of vomiting and diarrhea that has been occurring for 2 days. The mother states that the child has had fewer wet diapers today but has made tears when crying. On physical examination you note no rebound or guarding of the abdomen and determine that the child is moderately dehydrated. Your initial plan is to administer ondansetron and rehydrate the child orally. This is what you have been taught but is it actually efficacious? A just published 2014 JAMA Pediatrics article attempted to answer this question.