hypomagnesaemia
| Common cause | Commonly implicated drugs: PPI, diuretics, cyclosporin, laxative misuse, cisplatin; problems with absorption e.g. Crohn's |
| Clinical presentation | Arrhythmia (AF - aim Mg > 1), tremors, confusion, vomiting |
| Management | PO - Mg aspartate, 1-2 sachets OD, or IV - 5g in 250ml normal saline/5% glucose, or 10g in 500ml normal saline/5% glucose S/e: diarrhoea; replace with caution in pts with heart block or myocardial damage |
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