Table 1

Serial biochemical investigations

	10 Months before	3 Months before	Admission	Day 2	Day 2	Day 3	Day 4	Day 6	Day 7	Day 10
K⁺(mmol/l)	5.2	4.7	6.9	6.5	5.5	6.4	5.3	5.3	5.3	3.8
Na⁺(mmol/l)	138	138	137	133	137	134	130	131	131	128
HCO₃ ⁻(mmol/l)	22		14		14			20		19
Cl⁻(mmol/l)			102						102
Urea (mmol/l)	7.4	9.3	18.9	15.6	17.4	13.7	7.8	9.6	11.9	10.3
Creatinine (μmol/l)	133	161	195	176	193	167	142	144	140	147

Abnormal values in bold type.