What role do receptors play in pharmacodynamics?
Medications must bind with receptors to mimic or block the actions of the body's own regulatory molecules.
Activation of the receptor by the medication will cause the cell to develop a new function.
Receptors are necessary to start the process of metabolism of the medication by the liver.
Binding of a medication to a receptor will allow the medication to become more selective to that type of receptor.
The Correct Answer is A
In pharmacodynamics, receptors play a crucial role in mediating the effects of medications ¹. Medications must bind with receptors to mimic or block the actions of the body's own regulatory molecules ¹. This binding can activate or inhibit the receptor, leading to a biological response ¹.
Option B is incorrect because activation of the receptor by the medication does not necessarily cause the cell to develop a new function.
Option C is incorrect because receptors do not start the process of metabolism of the medication by the liver.
Option D is incorrect because binding a medication to a receptor does not necessarily make the medication more selective to that type of receptor.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Anticholinergic medications can be used to treat extrapyramidal symptoms (EPS) such as tremors and shuffling gait that can occur as side effects of first-generation antipsychotics ¹².
Option A is not correct because a direct dopamine antagonist would not be used to treat EPS.
Option B is not correct because increasing the dose of the antipsychotic medication could worsen EPS.
Option C is not correct because withholding the medication for two days could lead to a relapse of the underlying condition being treated by the antipsychotic.
Correct Answer is B
Explanation
It is important for the nurse to understand why the client is refusing to take the medication. There may be underlying reasons such as side effects, fear, or misunderstanding about the medication. By investigating and addressing these concerns, the nurse can help the client make an informed decision about their treatment.
Option A may not address the underlying reasons for noncompliance and could be perceived as confrontational.
Option C may be appropriate after understanding the reasons for noncompliance and discussing them with the provider.
Option D may also be appropriate in some cases, but it is important to first understand the reasons for noncompliance before involving a social worker.
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