ATI RN
ATI Proctored Pharmacology Test
1. A client with HIV-1 infection is prescribed zidovudine as part of antiretroviral therapy. The nurse should monitor the client for which of the following adverse effects of this medication?
- A. Cardiac dysrhythmia
- B. Metabolic alkalosis
- C. Renal failure
- D. Aplastic anemia
Correct answer: D
Rationale: Corrected Rationale: Zidovudine is associated with the development of aplastic anemia, a serious adverse effect characterized by bone marrow suppression. Regular monitoring is essential to detect this side effect early and prevent complications. Cardiac dysrhythmia, metabolic alkalosis, and renal failure are not commonly associated with zidovudine use, making them incorrect choices for adverse effects of this medication.
2. A client is prescribed Bethanechol to treat urinary retention. Which of the following findings is a manifestation of muscarinic stimulation?
- A. Dry mouth
- B. Hypertension
- C. Excessive perspiration
- D. Fecal impaction
Correct answer: C
Rationale: Bethanechol is a muscarinic agonist, which stimulates muscarinic receptors. Activation of these receptors can lead to increased sweating (excessive perspiration) as a manifestation of muscarinic stimulation. Options A, B, and D are not typically associated with muscarinic stimulation. Dry mouth is a common side effect of anticholinergic medications, hypertension is not a common manifestation of muscarinic stimulation, and fecal impaction is not directly related to muscarinic receptor activation.
3. When administering Amitriptyline to a client experiencing cancer pain, for which of the following adverse effects should the nurse monitor?
- A. Decreased appetite
- B. Explosive diarrhea
- C. Decreased pulse rate
- D. Orthostatic hypotension
Correct answer: D
Rationale: The correct answer is 'Orthostatic hypotension.' When administering Amitriptyline, the nurse should monitor for orthostatic hypotension. This condition can occur due to the drug's anticholinergic effects, leading to a sudden drop in blood pressure when standing up. Symptoms may include dizziness, lightheadedness, and an increased risk of falls. Monitoring for signs of orthostatic hypotension is crucial to prevent complications. Choices A, B, and C are incorrect as decreased appetite, explosive diarrhea, and decreased pulse rate are not typically associated with the administration of Amitriptyline.
4. A staff educator is reviewing medication dosages and factors that influence medication metabolism with a group of nurses at an in-service presentation. Which of the following factors should the educator include as a reason to administer lower medication dosages? (Select all that apply.)
- A. Increased renal secretion
- B. Increased medication-metabolizing enzymes
- C. Liver failure
- D. Peripheral vascular disease
Correct answer: C
Rationale: Liver failure impairs metabolism, leading to increased medication concentrations. When liver function is compromised, lower dosages are necessary to prevent adverse effects. Increased renal secretion is not a reason for lower medication dosages, as it primarily affects excretion rather than metabolism. Increased medication-metabolizing enzymes would usually require higher dosages to achieve the desired effect. Peripheral vascular disease does not directly impact medication metabolism or dosage requirements.
5. A client has a new prescription for Hydrochlorothiazide. Which of the following instructions should the nurse include?
- A. Take the medication in the morning.
- B. Increase your intake of potassium-rich foods.
- C. Expect decreased urination within the first few days.
- D. Avoid foods high in potassium.
Correct answer: B
Rationale: The correct answer is B: 'Increase your intake of potassium-rich foods.' Hydrochlorothiazide is a diuretic that can lead to hypokalemia by increasing potassium excretion. Therefore, instructing the client to increase their intake of potassium-rich foods is essential to prevent electrolyte imbalances and support overall health. Choices A, C, and D are incorrect. Instructing the client to take the medication in the morning is not directly related to the medication's mechanism of action. Expecting decreased urination within the first few days is not accurate as the medication is a diuretic that typically increases urination. Also, advising the client to avoid foods high in potassium would not be suitable, as increasing potassium-rich foods is necessary to counteract potential potassium depletion caused by Hydrochlorothiazide.
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