Table 2.

Arterial blood gas data pre-injury, 1 hour, 3 hours and 6 hours post-injury.

Parameter	Injured	Sham
pH
Baseline	7.53 ± 0.02	7.52 ± 0.02
1 hour	7.47 ± 0.03	7.46 ± 0.03
3 hour	7.46 ± 0.02	7.43 ± 0.02
6 hour	7.45 ± 0.03	7.45 ± 0.01
PaCO2 (mm Hg)
Baseline	43.7 ± 3.3	43.7 ± 2.7
1 hour	50.1 ± 3.9	46.9 ± 2.0
3 hour	51.4 ± 6.1	50.8 ± 0.5
6 hour	48.5 ± 2.5	51.2 ± 0.5
PaO2 (mm Hg)
Baseline	150.9 ± 11.5	128.4 ± 14.5
1 hour	135.3 ± 10.4	128.35 ± 11.9
3 hour	147.6 ± 12.7	120.9 ± 12.7
6 hour	139.9 ± 11.0	123.7 ± 6.8
Lactate (mmol/L)
Baseline	1.08 ± 0.22	0.775 ± 0.04
1 hour	1.23 ± 0.25	0.95 ± 0.11
3 hour	1.22 ± 0.17*	0.65 ± 0.07
6 hour	0.9 ± 0.14*	0.6 ± 0.03
Sodium (mmol/L)
Baseline	139.8 ± 2.2	140.6 ± 1.2
1 hour	140.3 ± 1.5	141.1 ± 1.6
3 hour	141.6 ± 1.7	140.2 ± 0.8
6 hour	139.7 ± 1.3	141.2 ± 1.3
Glucose (mg/dL)
Baseline	82.2 ± 5.8	83.3 ± 10.3
1 hour	102.0 ± 11.4	88.7 ± 6.8
3 hour	92.8 ± 11.9	82.3 ± 5.7
6 hour	89.2 ± 9.2	76.0 ± 2.3

^*denotes statistical difference compared to SHAM, P < 0.05.