805. Key causes of prolonged fever of unknown origin (> 14 days) // Ddx fever + petechiae January 11th, 2009 by reuben in kids fever Back Top Tags: card 804. What is hyperpyrexia? / At what temperature does end-organ damage occur? / 5 causes of high fever (infectious) / Noninfectious causes of hyperpyrexia / Pharmacologic management of fever / Empiric abx for pediatric fever 806. Common febrile illnesses in children / Value of TM and axillary temp Leave a Reply Cancel reply Please post any discussion to the emupdates Reddit page.