ATI RN
Pharmacology of Drugs Acting on Cardiovascular System Questions
Question 1 of 5
Withdrawal of which of the following drugs leads to rebound hypertension:
Correct Answer: C
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 2 of 5
A client diagnosed with bipolar I disorder: manic episode refuses to take lithium carbonate because he complains that it makes him feel sick. Which of the following medications might be alternatively prescribed for mood stabilization in bipolar disorders?
Correct Answer: B
Rationale: The correct answer is B: Valproic acid (Depakote). Valproic acid is commonly used as a mood stabilizer in bipolar disorder. It helps to control manic episodes and stabilize mood swings. It is effective in treating bipolar disorder and is well tolerated by many patients. It is an appropriate alternative to lithium carbonate for mood stabilization. Explanation for why the other choices are incorrect: A: Sertraline (Zoloft) is an antidepressant and not typically used as a primary treatment for bipolar disorder. C: Trazodone (Desyrel) is primarily used as an antidepressant and not as a mood stabilizer for bipolar disorder. D: Paroxetine (Paxil) is an antidepressant and is not indicated for mood stabilization in bipolar disorder. In summary, Valproic acid (Depakote) is the most appropriate alternative medication for mood stabilization in bipolar disorder compared to the other choices provided.
Question 3 of 5
A patient with bipolar disorder, mania, relapsed after discontinuing lithium. The health care provider prescribes lithium 600 mg BID and olanzapine (Zyprexa) 10 mg BID. What is the rationale for addition of olanzapine to the lithium regime? It will:
Correct Answer: B
Rationale: The correct answer is B: bring hyperactivity under rapid control. Olanzapine, an atypical antipsychotic, is commonly used in the acute treatment of mania due to its ability to rapidly control symptoms like hyperactivity. Lithium, on the other hand, is used for long-term mood stabilization in bipolar disorder. The addition of olanzapine helps address the acute manic symptoms while lithium works on the long-term management. Choices A and C are incorrect as olanzapine does not minimize lithium's side effects or potentiate its antimanic action. Choice D is incorrect as olanzapine is typically used for acute symptom management, not for long-term control of hyperactivity.
Question 4 of 5
The health care provider is planning to discontinue a patient’s beta blocker. Which instruction will the nurse give the patient regarding the beta blocker?
Correct Answer: B
Rationale: The correct answer is B because abruptly stopping a beta blocker can lead to rebound hypertension, angina, or arrhythmias due to sudden withdrawal of the medication. Tapering down the dose gradually allows the body to adjust and reduces the risk of adverse effects. Choice A is incorrect because abruptly stopping a beta blocker can be harmful. Choice C is incorrect as it suggests maintaining the dose while taking another antianginal medication, which may not be necessary. Choice D is incorrect as halving the dose without proper guidance can lead to inadequate therapeutic effect or withdrawal symptoms.
Question 5 of 5
The nurse administers a medication that potentiates the action of GAB Which effect would be expected?
Correct Answer: A
Rationale: The correct answer is A: Reduced anxiety. GABA is an inhibitory neurotransmitter in the brain that helps reduce neuronal excitability. By potentiating its action, the medication would enhance its calming effect, resulting in reduced anxiety. Choice B (Enhanced memory) is incorrect as GABA primarily affects anxiety and not memory. Choice C (Disorganized thinking) is incorrect as GABA's role is not related to cognitive processes. Choice D (Sensory perceptual alterations) is incorrect as GABA modulation does not typically lead to changes in sensory perception.