The role of co-administration of magnesium sulfate with QTc-prolonging medications in the emergency department.

Department of Emergency Medicine, The George Washington University School of Medicine and Health Sciences, Washington, DC, USA. Department of Emergency Medicine, MedStar Washington Hospital Center and Georgetown University School of Medicine, Washington, DC, USA. Department of Emergency Medicine, The George Washington University School of Medicine and Health Sciences, Washington, DC, USA. Electronic address: Pourmand@gwu.edu.