What is the difference between fainting and hypovolemic shock?

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Hypovolemic shock is a medical emergency that requires immediate care. Fainting, while frightening, is generally not a medical emergency. Shock is caused by excessive loss of body fluids, while fainting can be caused by several conditions, including emotional reactions. Fainting is the temporary loss of consciousness, with rapid return of consciousness.
Symptoms of shock include pale, cool, and clammy skin; shallow and rapid breathing; rapid pulse rate; and low blood pressure. Symptoms of fainting may include pale skin, low blood pressure, and complaints of feeling light headed.

What Is the Difference Between Fainting and Hypovolemic Shock