Table 1. Summary of Ventilatory Modes and Arterial Blood Gases

ICU = intensive care unit; INO = inhaled nitric oxide; ppm = parts per million, P^aw= mean airway pressure; Fio²= fraction of inspired oxygen; Paco²= arterial carbon dioxide tension; Pao²= arterial oxygen tension; Spo²= oxygen saturation measured by pulse oximetry; OI = oxygenation index; PCV = pressure control ventilation; HFOV = high frequency oscillatory ventilation.