Difficulty: Medium
Average Score: 80%
Simulated
A nurse is teaching a client about a medication that has a receptor antagonist effect. Which information should the nurse include in the teaching?
Correct answer
A
Rationale
The correct answer is A. A receptor antagonist blocks the effects of normal cellular functions by binding to the receptor site without activating it, preventing the normal ligand from binding and exerting its effect. This results in a decrease or inhibition of the cellular response intended by the normal ligand. Choice B is incorrect as it describes an agonist effect, not an antagonist effect. Choice C is incorrect because receptor antagonists do not directly affect the toxicity of other medications. Choice D is incorrect as receptor antagonists do not increase cellular actions; they typically inhibit or block them.