What This Study Adds to the FieldIn patients with acute respiratory distress syndrome (ARDS) secondary to coronavirus disease (COVID)-19, positive end-expiratory pressure (PEEP) selection should balance the beneficial and injurious effects of PEEP based on the potential for lung recruitment.We observed that the recruitment-to-inflation ratio (RIR) maneuver, a simple bedside method recently shown to differentiate patients based on their potential for lung recruitment, is linearly correlated with Page 2 of 13