Large complex pleural effusion on Lung POCUS Large complex pleural effusion as the etiology of this patient's progressive shortness of breath. If there is any question as to why your patient has dyspnea, doing #POCUS of the heart and lungs can shed incredible insight. Eric Abrams, MD @eabramsMD #complex #pleural #effusion #POCUS #lung #ultrasound #clinical #pulmonary