During preshock, the compensatory stage of shock, the body, through sympathetic nervous system stimulation, will release catecholamines to shunt blood from one organ to another. Which of the following organs will always be protected?

The Brain will remain protected  during the preshock.

Explanation:

During the compensatory stage of shock the body organs becomw active to prevent the ill effects of shock on the vital organs of the body. The preshock mechanism includes neural, endocrinal and biochemical pathway.

One of the mechanism involves release of Catecholamines.

The catecholamines i.e. epinephrine and norepinephrine released  by the  adrenal glands causes vasoconstriction. Vasoconstriction will result in increased blood pressure and heart rate. The perfusion in the vital organs increases and more and more blood reaches the vital organs. This prevents hypoxia of the brain and the brain remains protected.

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