Hypophosphataemia and hypomagnesaemia are common in HHS. As with the management of DKA there
is no evidence of benefit of treatment with phosphate infusion. However, these patients are often elderly
and may be malnourished, and the re-feeding syndrome could be precipitated once the person begins to
eat. If hypophosphataemia persists beyond the acute phase of treatment of HHS, oral or IV replacement
should be considered.