Dopamine function in acute care is to?

Dopamine function in acute care is to?

• A. Increase respiratory rate
• B. Treat distributive shock and maintain cardiac output
• C. Cause vasoconstriction in kidneys
• D. Reduce blood pressure

Answer: (B)

Dopamine in acute care functions as a vasopressor and inotrope to support perfusion during shock. Its effects are dose-dependent: at higher doses it stimulates beta-1 receptors to increase heart rate and contractility, and alpha-1 receptors to cause vasoconstriction, which raises mean arterial pressure and helps maintain cardiac output. This makes it useful for treating distributive shock (like septic shock) where improving blood pressure and organ perfusion is critical. The goal isn’t to change respiratory rate, and while dopamine can influence renal blood flow at very low versus high doses, the primary therapeutic aim in acute shock is to stabilize perfusion and CO. Reducing blood pressure would be counterproductive to its purpose.

Dopamine in acute care functions as a vasopressor and inotrope to support perfusion during shock. Its effects are dose-dependent: at higher doses it stimulates beta-1 receptors to increase heart rate and contractility, and alpha-1 receptors to cause vasoconstriction, which raises mean arterial pressure and helps maintain cardiac output. This makes it useful for treating distributive shock (like septic shock) where improving blood pressure and organ perfusion is critical. The goal isn’t to change respiratory rate, and while dopamine can influence renal blood flow at very low versus high doses, the primary therapeutic aim in acute shock is to stabilize perfusion and CO. Reducing blood pressure would be counterproductive to its purpose.