Table 1 Mean ± SE values of parameters obtained from arterial blood gas measurements

Hematocrit (%)

Group C

35.60 ± 0.77

34.24 ± 1.29

33.04 ± 1.88

Group 1

36.64 ± 0.72

32.26 ± 0.81*

29.63 ± 1.23^*$

Group 3

36.39 ± 0.77

30.30 ± 1.09^*$

27.09 ± 0.60^*$§

pH

Group C

7.50 ± 0.01

7.45 ± 0.01

7.45 ± 0.03

Group 1

7.52 ± 0.02

7.45 ± 0.03*

7.41 ± 0.02*

Group 3

7.54 ± 0.02

7.47 ± 0.02*

7.41 ± 0.03*

PaO₂ (mmHg)

Group C

70.75 ± 2.10

63.21 ± 2.86

67.35 ± 1.73

Group 1

74.24 ± 2.84

69.06 ± 3.55

75.43 ± 3.22

Group 3

75.28 ± 2.55

67.00 ± 4.10

71.06 ± 1.15

PaCO₂ (mmHg)

Group C

30.51 ± 1.74

30.63 ± 1.57

27.57 ± 3.08

Group 1

30.08 ± 1.55

31.07 ± 1.34

31.21 ± 1.49

Group 3

27.94 ± 0.97

29.71 ± 0.97

23.52 ± 2.34

CaO₂ (ml O₂/100 ml)

Group C

15.67 ± 0.38

14.36 ± 0.56

14.37 ± 0.94

Group 1

16.29 ± 0.35

14.00 ± 0.36*

12.97 ± 0.48*

Group 3

16.21 ± 0.43

12.91 ± 0.48*

11.78 ± 0.22^*$