Shock refers to the inadequate perfusion of tissues due to the imbalance between oxygen demand of tissues and the body’s ability to supply it. Classically, there are four categories of shock: hypovolemic, cardiogenic, obstructive, and distributive shock. Hypovolemic shock occurs when there is decreased intravascular volume to the point of cardiovascular compromise. The hypovolemic shock could be due to severe dehydration through a variety of mechanisms or from blood loss. The pathophysiology, diagnosis, and treatment of hemorrhagic shock, a subset of hypovolemic shock, will be explored in this article.
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