ATI RN
ATI Pharmacology Proctored Exam 2019
1. A client prescribed Isosorbide Mononitrate for chronic stable Angina develops reflex tachycardia. Which of the following medications should the nurse expect to administer?
- A. Furosemide
- B. Captopril
- C. Ranolazine
- D. Metoprolol
Correct answer: D
Rationale: Metoprolol, a beta-adrenergic blocker, is commonly used to treat hypertension and stable angina pectoris. It is often prescribed to decrease heart rate in clients who develop tachycardia, such as in the case of reflex tachycardia induced by Isosorbide Mononitrate, making it the appropriate choice in this scenario. Furosemide (Choice A) is a loop diuretic used for conditions like heart failure and edema, not for reflex tachycardia. Captopril (Choice B) is an ACE inhibitor primarily used for hypertension and heart failure, not for reflex tachycardia. Ranolazine (Choice C) is used for chronic angina but does not specifically address reflex tachycardia.
2. A client prescribed Warfarin is receiving discharge instructions from a nurse. Which of the following herbal supplements should the nurse instruct the client to avoid?
- A. St. John's wort
- B. Echinacea
- C. Garlic
- D. Ginseng
Correct answer: A
Rationale: St. John's wort can reduce the effectiveness of Warfarin by interacting with its metabolism pathways, potentially leading to decreased anticoagulant effects. Therefore, clients on Warfarin therapy should avoid St. John's wort. While echinacea, garlic, and ginseng are also herbal supplements that can interact with Warfarin, St. John's wort is particularly known for its significant impact on Warfarin metabolism. Echinacea may increase the risk of bleeding when taken with Warfarin, garlic may potentiate the anticoagulant effects of Warfarin, and ginseng may also increase the risk of bleeding. However, St. John's wort is the most crucial to avoid due to its significant impact on Warfarin metabolism.
3. While providing teaching to a client with a new prescription for Enalapril, the nurse should instruct the client to report which of the following manifestations as an adverse effect of this medication?
- A. Tremors
- B. Dry cough
- C. Drowsiness
- D. Hyperactivity
Correct answer: B
Rationale: The correct answer is 'B: Dry cough.' Enalapril is an ACE inhibitor known to cause a persistent dry cough as a common adverse effect. This cough should be reported to the healthcare provider for further evaluation, as it may indicate a potential issue with the medication that needs attention to ensure the client's well-being. Tremors (Choice A), drowsiness (Choice C), and hyperactivity (Choice D) are not typically associated with Enalapril use. Therefore, they are incorrect choices for this question.
4. How do ACE inhibitors work?
- A. Block the vasoconstrictor and aldosterone effects of angiotensin II at the receptor site
- B. Block stimulation of beta 1 and beta 2 at the receptor sites
- C. Block the conversion of angiotensin I to the vasoconstrictor angiotensin II
- D. None of the above
Correct answer: C
Rationale: ACE inhibitors work by inhibiting the conversion of angiotensin I to angiotensin II. Angiotensin II is a potent vasoconstrictor, and by blocking its production, ACE inhibitors help dilate blood vessels, reduce blood pressure, and decrease the workload of the heart. Choice A is incorrect because it describes the mechanism of action of angiotensin receptor blockers (ARBs), not ACE inhibitors. Choice B is incorrect as it describes beta-blockers, not ACE inhibitors. Choice D is incorrect as ACE inhibitors do have a specific mechanism of action.
5. A healthcare professional is preparing to administer Belimumab for a client with Systemic Lupus Erythematosus. Which of the following actions should the healthcare professional plan to take?
- A. Warm the medication to room temperature before administering.
- B. Administer the medication by slow IV infusion over the recommended time frame.
- C. Dilute the medication in an appropriate solution as per manufacturer guidelines.
- D. Monitor the client for hypersensitivity reactions.
Correct answer: D
Rationale: The correct action the healthcare professional should plan to take when administering Belimumab is to monitor the client for hypersensitivity reactions. Belimumab is known to cause severe infusion reactions, including anaphylaxis in some cases. Monitoring for hypersensitivity reactions is crucial to detect and manage any adverse reactions promptly. Options A, B, and C are incorrect because warming the medication, administering by slow IV infusion, and dilution are not specific actions needed for Belimumab administration. The priority is to monitor the client for potential hypersensitivity reactions to ensure their safety.
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