5. Medoff,3 et al presented a single patient with refractory hypoxemia. Management included repeated sustained inflations with PEEP set just above Pflex based on the PV curve. A recruiting maneuver including 20 cm H2O of PEEP and 40 cm H2O distending pressure for 2 minutes was performed. The patient exhibited marked improvement in oxygenation and near-complete recruitment of the lung by CT scan (see Figure 2).