271. What % of patients with PE describe their CP/SOB as sudden onset? / Two rare but classic CXR findings / ECG findings March 20th, 2008 by reuben in DVT/PE Back Top Tags: card 270. PE symptoms / Trivial risk criteria / Cardiac arrest from massive PE usually presents with what rhythm? 272. What % of patients with PE have no identifiable RF? / What pretest prob marks the workup harm-benefit line? / PE workup based on pretest prob Leave a Reply Cancel reply Please post any discussion to the emupdates Reddit page.