IL6 and Hyponatremia: Laboratory investigations revealed elevated C-reactive protein (321 mg/L), interleukin-6 (996 pg/mL), procalcitonin (29.4 ng/mL), lactate (3.9 mmol/L), creatinine (280 umol/L), neutrophilia (24,700 cells/mL), plasma glucose (18.2 mmol/L), hyponatremia (123 mmol/L), and hypoxaemia (59 mm of mercury O2 in arterial blood).