ATI RN
ATI Pharmacology Proctored Exam
1. A client has been prescribed Valsartan. Which of the following adverse effects should the nurse monitor?
- A. Hyperkalemia
- B. Hypoglycemia
- C. Bradycardia
- D. Hypercalcemia
Correct answer: A
Rationale: Corrected Rationale: Valsartan is an angiotensin II receptor blocker (ARB) that can lead to hyperkalemia by inhibiting the action of aldosterone. Hyperkalemia is a potential adverse effect, making it essential for the nurse to closely monitor the client's potassium levels to prevent complications such as cardiac arrhythmias. Incorrect Options Rationale: - Option B, Hypoglycemia, is not a common adverse effect of Valsartan. - Option C, Bradycardia, is not typically associated with Valsartan use. - Option D, Hypercalcemia, is not a known adverse effect of Valsartan; instead, Valsartan can lead to hyperkalemia.
2. What is pharmacodynamics?
- A. The medical reference summarizing standards of drug purity, strength, and directions for synthesis
- B. The drug's actions at receptor sites and the physiological, chemical, and behavioral effects produced by these actions
- C. The maximum response that a drug can produce
- D. Movements of the drugs throughout the body
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.
3. A client with end-stage cancer receiving Morphine is prescribed Methylnaltrexone. The client's daughter asks why the provider prescribed Methylnaltrexone. Which of the following responses should the nurse make?
- A. The medication will increase your mother's respirations.
- B. The medication will prevent dependence on the Morphine.
- C. The medication will relieve your mother's constipation.
- D. The medication works with the Morphine to increase pain relief.
Correct answer: C
Rationale: The correct response is C: 'The medication will relieve your mother's constipation.' Methylnaltrexone is an opioid antagonist used to treat severe constipation unrelieved by laxatives in opioid-dependent clients. It works by blocking the mu opioid receptors in the GI tract, which helps alleviate constipation without affecting pain relief or causing withdrawal symptoms. Choices A, B, and D are incorrect. Methylnaltrexone's primary action is related to managing constipation rather than increasing respirations, preventing dependence on Morphine, or enhancing pain relief when used alongside Morphine.
4. A client with prostate cancer is receiving leuprolide. Which of the following findings should the nurse monitor?
- A. Increased testosterone levels
- B. Increased libido
- C. Gynecomastia
- D. Hypoglycemia
Correct answer: C
Rationale: The nurse should monitor the client for gynecomastia, as it is an adverse effect of leuprolide due to decreased testosterone levels. Leuprolide works by decreasing testosterone production, which can lead to gynecomastia, the development of male breast tissue. Monitoring for this side effect is essential for early detection and intervention.
5. A client has a new prescription for Allopurinol. Which of the following instructions should the nurse include?
- A. Take this medication at bedtime.
- B. Increase your fluid intake.
- C. Avoid foods high in calcium.
- D. Take this medication with meals.
Correct answer: B
Rationale: Allopurinol can cause kidney stones due to the formation of uric acid crystals, so it is crucial for the client to increase their fluid intake. Adequate hydration helps to prevent the formation of kidney stones by diluting the urine and promoting the excretion of uric acid. Therefore, advising the client to increase their fluid intake is essential in preventing this adverse effect while taking Allopurinol.
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