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Our editors will assessment what you’ve submitted and decide whether to revise the article. Shock is normally attributable to hemorrhage or overwhelming infection and is characterized most often by a weak, fast pulse; low blood pressure; and chilly, sweaty skin. Depending on the cause, however, some or all of these signs may be missing in particular person circumstances. A brief remedy of shock follows. For additional discussion, see cardiovascular disease: Physiological shock. Shock might outcome from quite a lot of physiological mechanisms, together with sudden reductions in the overall blood volume via acute blood losses, as in severe hemorrhage; sudden reductions in cardiac output, as in myocardial infarction (heart attack); and widespread dilation of the blood vessels, as in some forms of infection. Whatever the central physiological mechanism, the impact of shock is to cut back blood circulation by the small vessels, or capillaries, the place oxygen and nutrients move into the tissues and wastes are collected for elimination.
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