Intended for healthcare professionals


Disorders of sodium balance: Iatrogenic hyponatraemia—water overload and not enough potassium

BMJ 2006; 332 doi: (Published 06 April 2006) Cite this as: BMJ 2006;332:853
  1. John A W Wildsmith, professor of anaesthesia (
  1. Ninewells Hospital, Dundee DD1 9SY

    EDITOR—Reynolds et al dealt with the important, everyday clinical problem of disorders of sodium balance and clearly stated that most cases of hyponatraemia are iatrogenic.1 However, they did not clarify the reasons for iatrogenic hyponatraemia: usually a combination of water overload and inadequate potassium replacement. Too many doctors believe that a …

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