The primary cause for the development of shock following hemorrhage is
Hemorrhage is the most impoant cause of hypovolemic shock. There will be reduction in the venous return leading to a fall in cardiac output and BP. The severity of shock depends upon the rapidity of blood loss. Ref: Textbook of medical physiology by N Geetha, 3rd edition, page no. 204
Marked vasodilation
Decreased blood volume
Inadequate output by the hea
Obstruction to blood flow
Cardiovascular system