Discuss the contributing factors to shock in this case and the pathophysiologic changes causing the changes in vital signs. (See Shock—Neurogenic.) Discuss the signs and symptoms of shock, including the rationale for each, as seen in the early stage, and as compensation mechanisms respond. (See Shock—Etiology.) Discuss emergency and follow-up treatment for shock and for complications that may arise if not treated quickly. (See Shock—Treatment.) Compare the types of shock, giving a specific cause, classification, and any significant changes in onset or manifestations.