Serum electrolytes (mmol/L)

Present study (Enugu)

Nsukka

Minna

Ibadan

Sodium

135 ± 3.85

142.15 ± 15.16

135.59 (125 - 142)

130.0 ± 5.2

Potassium

4.14 ±  0.70

5.17 ± 1.04

3.95 (2.9 - 5.0)

3.5 ± 0.8

Chloride

101 ± 3.25

98.50 ± 11.22

98.97 (90 - 110

92.0 ± 7.8