Final answer:
Vascular shock occurs when arterioles lose their normal muscular tone and dilate dramatically. Elevated central venous and pulmonary artery pressures and reduced pulmonary capillary wedge pressure indicate vascular shock.
Step-by-step explanation:
Vascular shock occurs when arterioles lose their normal muscular tone and dilate dramatically. Elevated central venous and pulmonary artery pressures and reduced pulmonary capillary wedge pressure are indicative of vascular shock. This type of shock may arise from a variety of causes and is typically treated with fluid replacement and medications that restore tone to the muscles of the vessels.