A nurse is preparing to administer a medication and learns that it is a nonselective agonist. What does the nurse understand about this drug?
It directly activates receptors to affect a specific physiologic process.
It prevents receptor activation to affect a specific physiologic process.
It directly activates receptors to affect many physiologic processes.
It prevents receptor activation to affect many physiologic processes.
The Correct Answer is C
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Hyperthyroidism involves elevated T3 and T4 with low TSH due to excessive thyroid hormone production. The patient’s low T3/T4 and high TSH indicate reduced thyroid activity, not overactivity, as the pituitary increases TSH to stimulate the underactive thyroid, making this choice incorrect.
Choice B reason: Hypothyroidism is characterized by low T3 and T4 levels due to underactive thyroid function, prompting the pituitary to secrete more TSH to stimulate hormone production. This matches the patient’s lab results (low T3/T4, high TSH), often seen in primary hypothyroidism, making this the correct choice.
Choice C reason: Thyroid cancer may alter thyroid function but typically doesn’t present with consistently low T3/T4 and high TSH. It’s more likely to cause nodules or abnormal growths, not this specific hormonal pattern, which aligns with hypothyroidism, making this choice less likely.
Choice D reason: Pituitary adenoma causing secondary hypothyroidism would lower TSH, T3, and T4 due to impaired pituitary function. High TSH with low T3/T4 suggests primary thyroid failure, not pituitary dysfunction, making this choice incorrect for the patient’s hormonal profile.
Correct Answer is D
Explanation
Choice A reason: Low drug interactions are desirable but unrelated to ease of administration. Adherence is directly tied to administration simplicity, so this is incorrect.
Choice B reason: Low production cost is a manufacturing benefit, not administration ease. Patient adherence is the outcome of easy administration, so this is incorrect.
Choice C reason: Storage stability aids logistics, not administration. Easy administration improves compliance, like taking oral pills, so this is incorrect for the outcome.
Choice D reason: Easy administration, like simple dosing or oral routes, enhances patient adherence by reducing barriers. This is the desired outcome, making it correct.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.