
A child can become dehydrated either because she’s lost a lot of body fluids, or because she isn’t drinking enough. If dehydration goes on for a long time or is very bad, it can be a problem. Your child might need medical assessment and treatment.
Gastroenteritis is by far the most common cause of dehydration. This is because it can make your child lose a lot of body fluids quickly. Any illness where there’s persistent diarrhoea, vomiting or reduced fluid intake can result in dehydration.
If your child is unwilling to drink for any reason, he could also end up with dehydration.
Excessive sweating can also result in dehydration, particularly in babies in very hot weather, or in adolescent children who are doing vigorous activity.
A young child who’s dehydrated will wee less often. She’ll either have fewer wet nappies, or her nappies won’t be as wet as usual.
Your child:
Also, your child’s:
See your doctor if:
You can treat mild cases of dehydration by giving your child more water, or by giving her oral rehydration fluid. This can also be frozen and given as an ‘icy pole’.
Fluids need to be given in small amounts, but frequently.
In more severe cases, your child might need hospital assistance to help him catch up on fluid losses. In many cases, the safest and quickest way to do this is by passing a small tube into the nose and then into the stomach, through which rehydrating fluids can be given.
Less often, fluids need to be given intravenously (directly into the vein). In this case, your child will have to go into hospital.
The best way to avoid significant dehydration is to see your doctor if your child has any illness that’s causing her to lose lots of fluid or stop drinking.
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Ford, D.M. (2009). Fluid, electrolyte, and acid-base disorders and therapy. In W. Hay, M. Levin, J. Sondheimer & R. Deterding (Eds), Current diagnosis and treatment: Pediatrics (20th edn, pp. 1299-1307). New York: McGraw-Hill.
Children, Youth and Women’s Health Service. (2011). Babies in hot weather. Retrieved on 6 January 2011, from http://www.cyh.com/HealthTopics/HealthTopicDetails.aspx?p=114&np=305&id=1605
Royal Children’s Hospital. (2010). Gastroenteritis. Retrieved January 6, 2011, from http://www.rch.org.au/kidsinfo/factsheets.cfm?doc_id=5353
Royal Children’s Hospital. (2010). Clinical Practice Guidelines: Gastroenteritis. Retrieved January 6, 2011, from http://www.rch.org.au/clinicalguide/cpg.cfm?doc_id=12364#degree_.
Mayo Foundation for Medical Education and Research. (2010). Dehydration. Retrieved on 6 January 2011, from http://www.mayoclinic.com/health/dehydration/DS00561/DSECTION=symptoms.
Eldridge, D. (2010). Alternatives to Intravenous Rehydration in Dehydrated Pediatric Patients with Difficult Venous Access. Pediatric Emergency Care, 26(7), 529-535.
Colletti, J., Brown, K., Sharieff, G., Barata, I., & Ishimine, P. (2010). The Management of Children with Gastroenteritis and Dehydration in the Emergency Department. The Journal of Emergency Medicine, 38(5), 686-698.