A client who is acutely ill is having difficulty maintaining a steady blood pressure.The nurse recognizes that when the client's blood pressure drops,the hormonal mechanism that immediately takes action is:

Question

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When the blood pressure drops, the hormonal mechanism that immediately takes action is the release of epinephrine by the adrenal medulla. Epinephrine triggers vasoconstriction, which increases peripheral resistance and raises blood pressure. This mechanism is part of the body's fight or flight response and is activated in response to stress. Aldosterone is released by the adrenal cortex to help conserve sodium and water, not increase blood pressure. Cortisol is released by the adrenal cortex in response to stress, but its primary function is to raise blood sugar, not blood pressure. Insulin is released by the pancreas in response to high blood sugar levels, which has no direct effect on blood pressure.

A Client Who Is Acutely Ill Is Having Difficulty Maintaining