How dangerous can low blood pressure be?

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Hypovolemic shock, also understood as low perfusion and low blood pressure is caused by insufficient amount of blood in the vascular space that can return to the heart and therefore the heart does not pump enough blood and oxygen to the organs. Low return of blood to the heart is known as decreased preload. A decrease in preload also brings about a decrease in stroke volume as well as a decrease in cardiac output. This explains why Rose presented with a high heart rate – because of the decrease in cardiac output causing low tissue oxygenation and, therefore, the heart rate increases in response to decreased stroke volume. As a result, the blood pressure also...
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