The results observed in a patient admitted to an emergency department with confusion and oliguria were reviewed (reference ranges are given in brackets): Sodium Potassium Urea Creatinine Alkaline phosphatase Alanine aminotransferase Albumin Bilirubin Calcium 146 mmol/L 7.2 mmol/L 18.5 mmol/L 256 μmol/L 319 IU/L 32 IU/L 42 g/L 13 μmol/L 2.47 mmol/L (135-145) (3.5-5.0) (3.5-6.6) (70-150) (95-320) (5-42) (35-50) (<17) (2.12-2.62) The sample was not visibly haemolysed and was centrifuged and analysed in the labora- tory within one hour of being collected. (a) What is the electrolyte abnormality in this patient? (b) What do the data suggest? (c) What action should you take?

The results observed in a patient admitted to an emergency department with confusion and oliguria were reviewed (reference ranges are given in brackets): Sodium Potassium Urea Creatinine Alkaline phosphatase Alanine aminotransferase Albumin Bilirubin Calcium 146 mmol/L 7.2 mmol/L 18.5 mmol/L 256 μmol/L 319 IU/L 32 IU/L 42 g/L 13 μmol/L 2.47 mmol/L (135-145) (3.5-5.0) (3.5-6.6) (70-150) (95-320) (5-42) (35-50) (<17) (2.12-2.62) The sample was not visibly haemolysed and was centrifuged and analysed in the labora- tory within one hour of being collected. (a) What is the electrolyte abnormality in this patient? (b) What do the data suggest? (c) What action should you take?