Table 1.
Blood Gas Results and Tissue Oxygenation during the Oxygen Study.
| 30% Oxygen | 100% oxygen | P | |
|---|---|---|---|
| PH | 7.45 ± 0.06 | 7.45 ± 0.03 | 0.05 |
| PO2 (mmHg) | 108 ± 21 | 454 ± 53 | <0.001 |
| PCO2 (mmHg) | 42 ± 3 | 43 ± 6 | 0.64 |
| HCO3− (mEq) | 29.7 ± 3.4 | 25.2 ± 9.8 | 0.17 |
| Base Excess (mEq) | 6.4 ± 2.5 | 6.0 ± 2.0 | 0.27 |
| Core Temperature (°C) | 37.1 ± 0.4 | 37.2 ± 0.6 | 0.67 |
| Leg | |||
| PsqO2 (mmHg) | 57 ± 10 | 107 ± 48 | 0.006 |
| Temperature (°C) | 36.4 ± 1.4 | 36.5 ± 1.7 | 0.64 |
| Small Intestine | |||
| PimO2 (mmHg) | 37 ± 10 | 52 ± 25 | 0.004 |
| Temperature (°C) | 37.9 ± 1.1 | 37.9 ± 1.4 | 0.92 |
| Large Intestine | |||
| PimO2 (mmHg) | 53 ± 14 | 118 ± 72 | 0.014 |
| Temperature (°C) | 37.8 ± 1.3 | 38.1 ± 1.4 | 0.24 |
PsqO2 = partial pressure of subcutaneous oxygen tension. PimO2 = partial pressure of oxygen in intestinal tissue. End-tidal PCO2 was 40 mmHg. Results presented as means ± SDs.