a nurse is teaching a client who has a new prescription for warfarin which of the following herbal supplements should the nurse instruct the client t
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Nursing Elites

ATI RN

ATI Pharmacology Proctored Exam 2023

1. A client has a new prescription for Warfarin. Which of the following herbal supplements should the client be instructed to avoid?

Correct answer: A

Rationale: St. John's wort should be avoided by clients taking Warfarin as it can reduce the medication's effectiveness by affecting its metabolism. Echinacea, garlic, and ginseng are also known to interact with Warfarin, either by increasing the risk of bleeding or altering its anticoagulant effects. However, St. John's wort is particularly significant due to its potent enzyme-inducing properties that can lead to subtherapeutic levels of Warfarin, potentially increasing the risk of blood clots.

2. A healthcare provider is caring for a client who is prescribed Furosemide. Which of the following laboratory values should the healthcare provider monitor?

Correct answer: A

Rationale: Corrected Rationale: Furosemide is a loop diuretic that can lead to hypokalemia (low potassium levels) due to increased potassium excretion. Monitoring serum potassium levels is crucial to prevent complications such as cardiac dysrhythmias associated with hypokalemia. Choice B, serum calcium, is incorrect because Furosemide does not directly impact calcium levels. Choice C, serum sodium, is less commonly affected by Furosemide use. Choice D, serum magnesium, is not the primary electrolyte affected by Furosemide, although magnesium levels may be affected indirectly.

3. A healthcare professional is reviewing the medication list of a client scheduled for surgery. Which of the following medications places the client at risk for increased bleeding during surgery?

Correct answer: D

Rationale: Aspirin is an anticoagulant that inhibits platelet function, increasing the risk of bleeding during surgery. It is important for the healthcare professional to identify this medication, inform the surgical team, and consider withholding it prior to surgery to reduce the risk of excessive bleeding. Warfarin is also an anticoagulant but can be managed by adjusting the dosage or monitoring INR levels. Acetaminophen and ibuprofen are not associated with increased bleeding risk as they do not affect platelet function like aspirin.

4. What is a severe adverse effect of iron supplementation?

Correct answer: A

Rationale: A severe adverse effect of iron supplementation is seizures. Iron toxicity can lead to symptoms such as abdominal pain, vomiting, bloody diarrhea, lethargy, and in severe cases, seizures. It is important for individuals taking iron supplements to follow recommended dosages to prevent adverse effects.

5. A client has a new prescription for Verapamil. Which of the following instructions should the nurse include?

Correct answer: C

Rationale: The correct answer is to instruct the client to avoid drinking grapefruit juice. Grapefruit juice can inhibit the metabolism of Verapamil, leading to increased blood levels of the medication, which can potentiate its effects, potentially causing adverse reactions like hypotension and bradycardia. Choices A, B, and D are incorrect. Taking Verapamil at bedtime is not a specific instruction related to its metabolism or side effects. Monitoring for signs of hyperglycemia is not directly related to Verapamil use. Increasing potassium-rich foods intake is not necessary with Verapamil and could potentially lead to hyperkalemia in some cases.

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