Fluid Resuscitation: History, Physiology, and Modern Fluid Resuscitation Strategies.

Intravenous (IV) fluids are among the most common interventions performed in the emergency department. They are at times lifesaving, but if used recklessly can be harmful. Given their ubiquity, it is important to understand the history, physiology, and current strategies that govern the use of IV fluids during the resuscitation of the critically ill.