Guinea is often subdivided into . Lower Guinea  and  Upper Guinea . Lower Guinea is one of the most densely populated regions of Africa, covering southern Nigeria, Benin, Togo and stretching into Ghana. It includes the coastal regions as well as the interior.
hypovolemic shock. 1. a type of shock caused by reduced blood volume, as from massive bleeding or dehydration. Compare cardiogenic shock, anaphylactic shock. hypovolemic shock n. Shock caused by a reduction in the volume of blood, as from hemorrhage. Discover our greatest slideshows.
Far more serious is hypovolemic shock, a life-threatening complication of dehydration. It occurs when low blood volume causes a sudden drop in blood pressure and a reduction in the amount of oxygen reaching your tissues. If untreated, severe hypovolemic shock can cause death within a few minutes or hours. 1  Blood loss. 2  Severe infection (septicemia). 3  Severe allergic reaction (anaphylaxis). 4  Lack of nutrients in your diet.