Snapshot A 60-year-old man presents to the emergency room after an earthquake. His right leg had been trapped under his truck for an hour. After he was extracted, he was rushed to the emergency room, where aggressive fluid hydration was started. There is no penetrating injury. On physical exam, there is a large ecchymosis and abrasion on the right thigh. The right thigh is severely tender to palpation and the muscles feel tense. Laboratory evaluation reveals hyperkalemia and significantly elevated creatine kinase. He is immediately started on intravenous fluids and calcium gluconate. Introduction Clinical definition login to view 1 more bullet Epidemiology Risk factors login to view 4 more bullets ETIOLOGY Pathogenesis login to view 3 more bullets Associated conditions login to view 1 more bullet Presentation Symptoms login to view 1 more bullet Physical exam login to view 8 more bullets Imaging Radiography login to view 2 more bullets Studies Labs login to view 4 more bullets Urine login to view 1 more bullet Electrodiagnostic login to view 1 more bullet Making the diagnosis login to view 1 more bullet Differential Penetrating injury login to view 2 more bullets Treatment Management approach login to view 2 more bullets Medical login to view 10 more bullets Complications Compartment syndrome Acute tubular necrosis Hyperkalemia login to view 1 more bullet