what is pharmacodynamics
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Nursing Elites

ATI RN

ATI Proctored Pharmacology 2023

1. What is pharmacodynamics?

Correct answer: B

Rationale: Pharmacodynamics refers to the drug's actions at receptor sites and the physiological, chemical, and behavioral effects produced by these actions. It involves understanding how drugs interact with the body at the molecular level to produce their effects, including mechanisms of action, receptor binding, and downstream physiological responses. Choice A is incorrect because it describes pharmacopeia, which is a reference book containing standards for drugs. Choice C refers to efficacy, which is the maximum effect a drug can produce. Choice D describes pharmacokinetics, which focuses on the movement of drugs within the body.

2. A client is starting a new prescription for furosemide. Which of the following instructions should the nurse include?

Correct answer: B

Rationale: When a client is prescribed furosemide, it is important to monitor for fluid loss. Weighing oneself daily helps track changes in weight due to fluid loss, which can indicate the effectiveness of the medication. This monitoring assists in managing fluid balance and adjusting the dosage if necessary to achieve the desired therapeutic effect. Choice A is incorrect because furosemide is usually recommended to be taken on an empty stomach. Choice C is incorrect because potassium supplements should only be taken if prescribed by a healthcare provider due to the risk of hyperkalemia with furosemide. Choice D is incorrect because decreasing sodium intake is generally a good dietary practice but not a specific instruction related to furosemide therapy.

3. A client has a new prescription for Somatropin to stimulate growth. The client should monitor for which of the following adverse effects?

Correct answer: A

Rationale: Somatropin is known to cause hyperglycemia as a common adverse effect. Therefore, the client should be instructed to monitor for elevated blood glucose levels closely while taking this medication to ensure early detection and management of hyperglycemia.

4. A client has a new prescription for Digoxin. Which of the following instructions should the nurse provide?

Correct answer: A

Rationale: Clients prescribed Digoxin should monitor their heart rate before each dose. This is essential to identify any potential bradycardia, defined as a heart rate below 60 bpm, which can be a side effect of Digoxin. Any significant changes in heart rate should be reported promptly to the healthcare provider for further evaluation and management. Choice B is incorrect because increasing intake of high-potassium foods can lead to hyperkalemia, a condition that can be exacerbated by Digoxin. Choice C is incorrect as taking Digoxin with a full glass of milk is not necessary. Choice D is incorrect as black, tarry stools are not an expected side effect of Digoxin.

5. When teaching parents about a child newly prescribed Desipramine, the nurse should instruct them that which of the following adverse effects is the priority to report to the provider?

Correct answer: B

Rationale: The priority adverse effect to report when a child is prescribed Desipramine is suicidal thoughts. Desipramine can increase the risk of suicidal thoughts and behaviors. It is crucial for parents to monitor the child for any signs of worsening depression or thoughts of self-harm and report them promptly to the healthcare provider to prevent any harm to the child. Options A, C, and D are potential side effects of Desipramine but are not as urgent or life-threatening as suicidal thoughts, which require immediate intervention to ensure the safety of the child.

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