| Nonventilated room air | 6 ml/kg tidal volume room air | 30 ml/kg tidal volume room air |
---|---|---|---|
PH | 7.40 ± 0.05 | 7.35 ± 0.02 | 7.33 ± 0.06 |
Arterial oxygen pressure (mmHg) | 98.7 ± 0.6 | 82.3 ± 7.5 | 86.1 ± 1.3 |
Arterial carbon dioxide pressure (mmHg) | 40.2 ± 0.5 | 39.1 ± 1.1 | 35.3 ± 1.9 |
Mean arterial pressure (mmHg) | Â | Â | Â |
   Start | 86 ± 1.9 | 85.3 ± 3.0 | 84.6 ± 2.3 |
   End | 85 ± 0.8 | 81.3 ± 2.2 | 73.5 ± 7.1 |
Peak inspiratory pressure (mmHg) | Â | Â | Â |
   Start |  | 9.5 ± 1.5 | 23.6 ± 2.6 |
   End |  | 11.7 ± 1.8 | 27.9 ± 3.8 |