<prompt> Most common postoperative complication in polycythemia vera -InfectionCardiopulmonary complicationHemolysisUremia  <response>: Ans is . b i.e., Cardiopulmonary complication o Many patients of polycythemia experience a post-operative complication, most often bleeding or thrombosis. o So, none of the given options is correct. o Amongst the given options, I would like to prefer cardiopulmonary complication because thrombosis DVT is the most common cause of pulmonary embolism. 