Vomiting and diarrhoea caused by acute gastroenteritis is a very common paediatric presentation. Although often self-limiting and self-managed, around 10 of children under the age 5 years will present to healthcare professionals every year. The majority are managed by primary care services. Some studies suggest that oral rehydration sachets are under- prescribed and that too many children are referred to secondary care. This article considers the aetiology, clinical assessment, investigation and management of vomiting and diarrhoea in children.
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