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The physiologically difficult airway - Dr Jarrod Mosier

The Critical Care Commute Podcast

CHAPTER

The Importance of VQ Mismatch and Shunt in Apnea Time

VQ mismatch and shunt become your biggest obstacles to a safe apnea time. With acute lung injury, what happens is you have various areas of the lung that are heterogeneous. And pendulift is redistribution of gas in the lung without any change in volume. So if I have ARDS and I drop my pleural pressure and I'm giving me 100% oxygen, it's going to be closer to regional tidalction than spontaneous breathing.

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