Arterial blood gas tensions breathing air before and 2 hours after treatment
| Admission | 2 hours | p value | |||
|---|---|---|---|---|---|
| Placebo(n = 36) | Aminophylline(n = 34) | Placebo(n = 36) | Aminophylline(n = 34) | ||
| Values are means (95% CI). | |||||
| pH | 7.41 (7.40 to 7.42) | 7.42 (7.40 to 7.44) | 7.41(7.40 to 7.42) | 7.44 (7.43 to 7.45) | 0.001 |
| Pao2 (kPa) | 7.46 (6.98 to 7.94) | 7.67 (7.21 to 8.13) | 7.54 (7.11 to 7.97) | 7.77 (7.30 to 8.24) | 0.97 |
| Paco2 (kPa) | 5.96 (5.57 to 6.35) | 5.46 (5.04 to 5.87) | 5.79 (5.42 to 6.16) | 4.99 (4.62 to 5.36) | 0.01 |