The new Hypomagnesaemia CPG adds to the existing electrolyte disturbance topics that have been developed by the CPG Committee. Other new topics are Hypermagnesaemia and Electrolyte abnormalities.

 The Key points for the CPG are

1. Oral/enteral is the preferred route of magnesium administration
2. Consider oral magnesium replacement in asymptomatic children with mild hypomagnesaemia and no gastrointestinal intolerance present eg diarrhoea, nausea, vomiting
3. Intravenous magnesium replacement is the preferred route in the setting of symptomatic hypomagnesaemia, significant gastrointestinal intolerance
4. Seek specialist advice for symptomatic children with hypomagnesaemia