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Human Body & Health

An individual with hypertension starts taking a medication that blocks angiotensin II receptors. Which outcome is most likely regarding cardiovascular hemodynamics?

A)Increased systemic vascular resistance
B)Elevated cardiac output demand
C)Decreased arterial blood pressure
D)Enhanced sodium and water retention

💡 Explanation

Blocking angiotensin II receptors inhibits the vasoconstriction and aldosterone release normally mediated by angiotensin II, thus reducing systemic vascular resistance and blood volume. Therefore, arterial blood pressure decreases, rather than remaining elevated or increasing, because the renin-angiotensin-aldosterone system is suppressed.

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