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Oxygenation goals
- In recent pearls we have talked about 'lung protective' ventilation strategies to reduce volutrauma, barotrauma, and oxygen toxicity.
- Using 'lung protective' strategies, such as low tidal volumes, results in higher levels of CO2 and a lower pH. These are tolerated in favor of lower and safer alveolar pressures.
- In addition to higher pCO2 values and lower pH, oxygenation goals are slightly lower than conventional teaching.
- In these patients, you want to maintain SpO2 > 88% and PaO2 > 55 mm Hg.