Severely undernourished children should be hospitalized. ORS should be started as soon as possible. A standard ORS treatment with additional potassium should be given orally (preferred method) or using a nasogastric tube. An intravenous solution should be avoided since fluid overload may potentially cause heart failure and increase the risk of septicemia. By dissolving 7.5 g of potassium chloride in 100 ml of water, it is possible to prepare 1 mmol of potassium per milliliter of solution. Every 24 h, 4 ml/kg body weight should be given, mixed with food, for 14 days.
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