Table 2.

Criteria for confirmation of refeeding syndrome from the start of artificial nutrition support

1. Electrolytes	Severely low electrolyte concentrations4
Potassium	<2.5 mmol/l*
Phosphate	<0.32 mmol/l
Magnesium	<0.5 mmol/l
2. Peripheral oedema or acute circulatory fluid overload
3. Disturbance to organ function including respiratory failure, cardiac failure and pulmonary oedema

*King's College Hospital: severely low-serum potassium concentration which required supplementation.