haemoglobin	128 g/l (115–165)
white cell count	18.5 × 109/l (4.0–11.0)
serum sodium	139 mmol/l (137–144)
serum potassium	3.2 mmol/l (3.5–4.9)
serum urea	8.2 mmol/l (2.5–7.0)
serum creatinine	153 µmol/l (60–110)
serum albumin	25 g/l (37–49)
plasma lactate	3.8 mmol/l (0.6–1.8)
abdominal X-ray	dilated colon (caecal diameter 10.5 cm)