A nurse is preparing to administer a medication and learns that it is a nonselective agonist. What does the nurse understand about this drug?

Choice A reason: Nonselective agonists activate multiple receptors, not specific ones, leading to widespread effects. Specific processes are targeted by selective agonists, so this is incorrect for nonselective drugs. Choice B reason: Nonselective agonists activate, not prevent, receptors. Prevention is the role of antagonists, so this is incorrect for a nonselective agonist’s mechanism of action. Choice C reason: Nonselective agonists activate multiple receptor types, affecting many physiologic processes (e.g., epinephrine). This broad action is their hallmark, making it the correct choice for the drug’s effect. Choice D reason: Preventing receptor activation describes antagonists, not agonists. Nonselective agonists stimulate multiple processes, so this is incorrect for the drug’s pharmacological action.