Definition Any obstruction to outflow can potentially lead to increased airway pressure, reduced minute ventilation, lung hyperinflation, and subsequent cardiopulmonary effects (ex. hypotension due to decreased venous return, lung injury due to volutrauma/barotrauma). The capnograph may show a prolonged expiratory upstroke (similar to in COPD) An expiratory valve stuck in the open position may be […]