Table 1.

	T1	T2	T3	T4
Chloride (mmol/l)	103 ± 3.5	113 ± 5.1	111.8 ± 3.6	108.5 ± 4.1
pH	7.4 ± 0.04	7.34 ± 0.06	7.35 ± 0.06	7.4 ± 0.03
paCO2 (mmHg)	37.2 ± 5.01	34.8 ± 4.5	37.3 ± 5.9	37.5 ± 4.6
Base excess (mmol/l)	-1.4 ± 1.2	-5.9 ± 2.1	-6.33 ± 2.3	-0.9 ± 3.5
Bicarbonate (mmol/l)	22.7 ± 2.0	19.2 ± 1.8	20.6 ± 3.7	23.8 ± 2.9
Anion gap (mmol/l)	11.4 ± 3.1	8.4 ± 2.1	12.7 ± 2.5	10.6 ± 2.9