Table 1.
| Group | n | Fluid Type | Pressure, cmH2O | Rate, min−1 | TI, s | Duration, min | Timing of PI Labeling |
|---|---|---|---|---|---|---|---|
| WLV1 | 8 | NS | 0–40 | 40 | 0.75 | 20 | Post hoc |
| WLV2 | 8 | NS | 0–40 | 40 | 0.75 | 20 | From outset |
| WLV3 | 8 | NS | 0–30 | 40 | 0.75 | 20 | From outset |
| WLV4 | 8 | NS | 0–20 | 40 | 0.75 | 20 | From outset |
| WLV5 | 8 | NS | 24–40 | 40 | 0.75 | 20 | From outset |
| WLV6 | 7 | NS | 0–40 | 1 | 6 | 60 | From outset |
| WLV7 | 7 | PFC | 0–40 | 40 | 0.75 | 20 | Post hoc |
WLV, wet lung ventilation; n, no. of observations; NS, normal saline; PFC, perfluorocarbon.; rate refers to respiratory frequency; Ddration refers to the length of the experimental exposure; TI, inspiratory time; PI, propidium iodide; timing of the PI label application identifies groups in which the initial tracheal instillate did (from the outset) or did not (post hoc) containe PI.