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Definition of hypovolemia in US English - a decreased volume of circulating blood in the body.
Shock develops as the result of diminished blood flow to the bodyâs vital organs. The most common type of shock is known as hypovolemic (low-volume) shock, a direct result of diminished blood flow. Traumatic injury can cause serious bleeding, resulting in a decrease in the amount of blood in the body and an increase in the risk of shock.