| Pao2 | Paco2 | apH | |
| Before indomethacin | 10.7 (0.6) | 7.6 (0.5) | 7.43 (0.02) |
| After indomethacin | 10.1 (1.1) | 7.3 (0.6) | 7.41 (0.03) |
| Before NSAIDs | 11.3 (1.3) | 7.2 (1.0) | 7.42 (0.03) |
| After NSAIDs | 10.8 (1.2) | 7.4 (1.0) | 7.42 (0.03) |
| Before NSAIDs and indomethacin | 11.2 (1.8) | 6.6 (0.6) | 7.42 (0.04) |
| After NSAIDs and indomethacin | 10.2 (1.1) | 7.0 (0.7) | 7.41 (0.06) |
| Before dorzolamide | 11.1 (0.5) | 7.2 (0.5) | 7.42 (0.03) |
| After dorzolamide | 11.4 (0.3) | 8.6* (0.4) | 7.34* (0.02) |
No parameter showed any significant change after administration of any of the NSAIDs. Results are presented as the average (SD).
*Significant difference after the injection of 500 mg dorzolamide, which significantly increased Pco2 and decreased pH.