Timeframe for the sweep wean from 10 down to 3, showing the relationship with pH, CO2 and vent setting
| Hemolung sweep wean | ||||||
| Wean placed on PC for TV approximately 4 mL/kg | 279 hours | 281 hours | 283 hours | 284 hours | 292 hours | 316 hours |
| Start sweep | Stop wean | 8 hours on three sweep | 31 hours on three sweep | |||
| Respiratory rate (breaths per minute) | 38 | 38 | 38 | 38 | 38 | 28 |
| Tidal volume (mL) | 290 | 290 | 290 | 290 | 290 | 320 |
| Plateau pressure | 28 | 28 | 28 | 28 | 28 | 29 |
| PEEP | 5 | 5 | 5 | 5 | 5 | 5 |
| pH | 7.43 | 7.42 | 7.44 | 7.37 | 7.39 | 7.44 |
| pCO2 | 87 | 90 | 80 | 98 | 93 | 87 |
| Sweep flow (L/min) | 10 | 8 | 6 | 3 | 3 | 3 |
| Blood flow (L/min) | 0.43 | 0.46 | 0.44 | 0.44 | 0.46 | 0.44 |
| Pump speed (RPM) | 1400 | 1400 | 1400 | 1400 | 1400 | 1400 |
CO2, carbon dioxide; PC, Pressure control; pCO2, partial pressure of carbon dioxide; PEEP, positive end expiratory pressure; RPM, revolutions per minute; TV, tidal volume.