A Nurse Is Teaching Nursing Students About the Use of Alpha-Adrenergic

question 5

Multiple Choice

A nurse is teaching nursing students about the use of alpha-adrenergic antagonists. Which statement by the student indicates the need for further teaching?

• A) "Alpha-adrenergic antagonists block alpha₁ receptors on arterioles and veins."
• B) "Dilation of arterioles has a direct effect on arterial pressure."
• C) "Dilation of veins by alpha-adrenergic antagonists improves cardiac output."
• D) "Venous dilation by alpha-adrenergic antagonists indirectly lowers arterial pressure."

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Definitions:

Reaction

A process in which one or more substances, the reactants, are converted to one or more different substances, the products, via a chemical change.

Dilute Acid

An acid solution that has a low concentration of hydrogen ions compared to its amount of solvent, typically water.

Protonation

The addition of a proton (H+) to an atom, molecule, or ion, usually resulting in a positively charged species.

Equivalents

A measure in chemistry indicating the amount of a substance that reacts with a defined amount of another in a chemical reaction.