<prompt> TPN may be complicated by -Obstructive jaundiceHyperosteosisHypercalcemiaPancreatitis  <response>: Characterized by severe fluid and electrolyte shifts in malnourished patients undergoing refeeding. It can occur with either enteral or parenteral nutrition but is more common with the latter. It results in hypophosphataemia, hypocalcaemia and hypomagnesaemia. Risk Factors: Alcohol dependency, severe malnutrition, Anorexics and prolonged periods of fasting.Treatment Treatment involves matching intakes with requirements and assiduously avoiding overfeeding. Calorie delivery should be increased slowly and vitamins administered regularly. Hypophosphataemia and hypomagnesaemia require treatment. 