Nursing Elites

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

• A. St. John's wort
• B. Echinacea
• C. Garlic
• D. Ginseng

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 professional is preparing to administer Haloperidol 2 mg PO every 12 hr. The available dosage is haloperidol 1 mg/tablet. How many tablets should the healthcare professional administer?

• A. 1 tablet
• B. 2 tablets
• C. 3 tablets
• D. 4 tablets

Correct answer: B

Rationale: To determine the number of tablets needed, divide the desired dose by the dose per tablet. In this case, (2 mg / 1 mg/tablet) = 2 tablets required to administer the prescribed dose of Haloperidol.

3. A client has a new prescription for Allopurinol. Which of the following instructions should be included by the healthcare provider?

• 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 increase the risk of kidney stones as a side effect. To prevent this adverse effect, it is essential for the client to increase their fluid intake. Adequate hydration can help in preventing the formation of kidney stones by keeping urine dilute and flushing out substances that can lead to stone formation.

4. When teaching a client with a new prescription for Warfarin, which herbal supplement should the nurse instruct the client to avoid?

• A. St. John's wort
• B. Echinacea
• C. Garlic
• D. Ginseng

Correct answer: A

Rationale: The correct answer is St. John's wort. St. John's wort can reduce the effectiveness of Warfarin by interacting with its metabolism, potentially leading to decreased anticoagulant effects. Therefore, the nurse should instruct the client to avoid using St. John's wort while taking Warfarin to prevent adverse drug interactions. Echinacea, garlic, and ginseng are not the correct answers in this case. While these herbal supplements may also interact with Warfarin and affect its efficacy, St. John's wort has a well-known interaction with Warfarin that can significantly impact its anticoagulant effects. Educating the client about the specific interaction between St. John's wort and Warfarin is crucial to ensure patient safety and the medication's therapeutic benefit.

5. A client is receiving chemotherapy and has a prescription for ondansetron IV for nausea and vomiting. The nurse should monitor the client for which of the following adverse effects?

• A. Hypotension
• B. Bradycardia
• C. Tremors
• D. Urinary retention

Correct answer: C

Rationale: The correct answer is C: Tremors. Ondansetron can cause tremors as an adverse effect. Monitoring for tremors is essential as it can indicate a potential adverse reaction to the medication. Hypotension (choice A) and bradycardia (choice B) are not commonly associated with ondansetron. Urinary retention (choice D) is also not a typical adverse effect of ondansetron, making choices A, B, and D incorrect in this scenario.

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