TABLE 5.
The influence of 120 s oscillations of 80/20 and 30/70 O2/N2 concentrations on lung diffusion measures.
| Testing period | Mean | SD | p-value |
|---|---|---|---|
| Membrane diffusion capacity (ml/min/mmHg) | |||
| Pre | 38.95 | 8.09 | |
| Mid | 41.43 | 7.54 | 0.39 |
| Post | 42.88 | 8.93 | 0.08 |
| Recovery | 42.25 | 9.88 | 0.17 |
| Pulmonary-capillary blood volume (ml) | |||
| Pre | 119.70 | 22.18 | |
| Mid | 112.16 | 27.14 | 0.51 |
| Post | 104.97 | 20.76 | 0.06 |
| Recovery | 100.89 | 16.00 | <0.01 |
| Dm/Vc (1/min/mmHg) | |||
| Pre | 0.34 | 0.07 | |
| Mid | 0.39 | 0.09 | 0.14 |
| Post | 0.43 | 0.09 | <0.01 |
| Recovery | 0.44 | 0.06 | <0.01 |
| Cardiac Output (L/min) | |||
| Pre | 5.52 | 1.04 | |
| Mid | 5.31 | 0.77 | 0.80 |
| Post | 5.31 | 0.78 | 0.79 |
| Recovery | 5.37 | 0.93 | 0.90 |
SD, standard deviation. Bolded p-values denote a significant difference between that testing period and the pre exposure testing period (p < 0.05).