ATI RN
ATI Pharmacology
1. 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.
2. A client with a UTI and a history of recurrent infections asks why the provider has not yet prescribed an antibiotic. The nurse should explain that the provider has to wait for the results of which of the following laboratory tests to identify which antibiotic to prescribe?
- A. Gram stain
- B. Culture
- C. Sensitivity
- D. Specific gravity
Correct answer: C
Rationale: In the case of a UTI, a sensitivity test is crucial as it identifies the most effective antibiotic to target the specific microorganism causing the infection. This test helps in prescribing the appropriate antibiotic for successful treatment and preventing antibiotic resistance. While a Gram stain and culture are important in diagnosing a UTI, the sensitivity test specifically determines the most suitable antibiotic. Specific gravity, on the other hand, is not related to identifying the appropriate antibiotic for a UTI.
3. A client is receiving treatment with capecitabine. Which of the following findings should the nurse monitor?
- A. Hyperglycemia
- B. Hypocalcemia
- C. Neutropenia
- D. Bradycardia
Correct answer: C
Rationale: Capecitabine is known to cause neutropenia as a common adverse effect due to bone marrow suppression. Neutropenia increases the risk of infections and requires close monitoring to prevent complications. Hyperglycemia (Choice A) is not typically associated with capecitabine. Hypocalcemia (Choice B) and Bradycardia (Choice D) are not commonly linked to capecitabine use, making them incorrect choices.
4. An older adult client has a new prescription for Digoxin and takes multiple other medications. The nurse should recognize that concurrent use of which of the following medications places the client at risk for Digoxin toxicity?
- A. Phenytoin
- B. Verapamil
- C. Warfarin
- D. Aluminum hydroxide
Correct answer: B
Rationale: Verapamil, a calcium-channel blocker, can increase digoxin levels, leading to toxicity. When given together, the digoxin dosage may need adjustment, and the nurse should closely monitor the client's digoxin levels to prevent toxicity symptoms such as nausea, vomiting, visual disturbances, and arrhythmias. The other choices, Phenytoin, Warfarin, and Aluminum hydroxide, do not significantly interact with Digoxin to cause toxicity. Phenytoin may reduce Digoxin levels, while Warfarin and Aluminum hydroxide have minimal interactions with Digoxin.
5. A client has a new prescription for Atenolol. Which of the following client statements indicates an understanding of the teaching?
- A. I should monitor my blood pressure regularly.
- B. I will take this medication at bedtime.
- C. I will take this medication with a high-fat meal.
- D. I should increase my intake of potassium-rich foods.
Correct answer: A
Rationale: The correct answer is A. Clients taking Atenolol, a beta-blocker, should monitor their blood pressure regularly to ensure the medication is effectively managing their condition. Monitoring blood pressure helps in assessing the drug's effectiveness and identifying any potential side effects that may influence blood pressure levels. Choices B, C, and D are incorrect because taking Atenolol at bedtime, with a high-fat meal, or increasing potassium-rich foods intake are not recommended actions associated with this medication and do not demonstrate an understanding of the teaching.
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