This site is intended for healthcare professionals

Go to /sign-in page

You can view 5 more pages before signing in


Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

Water overload:

  • secondary to ADH secretion commonly occuring in hyaline membrane disease, ventilation pneumothorax or intraventricular haemorrhage
  • in the first 24 hours due to excess fluid administration to the mother or child
  • in acute renal failure before fluid restriction

Increased sodium losses:

  • excess renal loss in the preterm baby is exacerbated by diuretic or aminophylline therapy
  • inherited tubular disorders
  • adrenal insufficiency - with dehydration and hyperkalaemia
  • excess gastrointestinal losses in gastroenteritis

Inadequate sodium intake:

  • late hyponatremia may be caused by inadequate sodium content during intravenous nutrition
  • in the preterm after 2 weeks of low solute breast milk or formula. Preterm milk has a higher sodium concentration and should not be used after 4 to 6 weeks unless high sodium losses continue

Related pages

Create an account to add page annotations

Add information to this page that would be handy to have on hand during a consultation, such as a web address or phone number. This information will always be displayed when you visit this page

The content herein is provided for informational purposes and does not replace the need to apply professional clinical judgement when diagnosing or treating any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions.


Copyright 2024 Oxbridge Solutions Limited, a subsidiary of OmniaMed Communications Limited. All rights reserved. Any distribution or duplication of the information contained herein is strictly prohibited. Oxbridge Solutions receives funding from advertising but maintains editorial independence.