Nursing Elites

1. When taking Digoxin, low levels of what can cause toxicity?

• A. Potassium
• B. Calcium
• C. Sodium
• D. Magnesium

Correct answer: A

Rationale: Low potassium levels can lead to Digoxin toxicity. Digoxin competes with potassium for binding sites on the sodium-potassium pump. When potassium levels are low, there is an increased risk of Digoxin binding and toxicity. Choice B (Calcium) is incorrect because low calcium levels are not directly linked to Digoxin toxicity. Choice C (Sodium) is incorrect as low sodium levels do not cause Digoxin toxicity. Choice D (Magnesium) is incorrect as low magnesium levels do not contribute to Digoxin toxicity.

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. A client has a new prescription for Clozapine. Which of the following statements should the nurse include in the teaching?

• A. You should have a high-carbohydrate snack between meals and at bedtime.
• B. You are likely to develop hand tremors if you take this medication for a long period of time.
• C. You may experience temporary numbness of your mouth after each dose.
• D. You should have your white blood cell count monitored every week.

Correct answer: D

Rationale: Clozapine has a risk for fatal agranulocytosis, making weekly monitoring of the client's white blood cell (WBC) count essential to detect any potential issues early. This monitoring helps in managing the risk and ensuring the client's safety while on clozapine.

4. A healthcare professional is preparing to administer IV Vancomycin to a client who has a systemic infection. Which of the following actions should the healthcare professional take?

• A. Administer the medication rapidly over 15 minutes.
• B. Monitor the client for hypertension during infusion.
• C. Administer a test dose before the full dose.
• D. Monitor the client for Red Man Syndrome.

Correct answer: D

Rationale: The correct action for the healthcare professional is to monitor the client for Red Man Syndrome. Red Man Syndrome is a common adverse reaction to Vancomycin characterized by flushing, rash, and hypotension. It is important to monitor the client for these symptoms to intervene promptly if they occur.

5. When teaching a client with a new prescription for Simvastatin, which instruction should be included?

• A. Take this medication with food.
• B. Avoid drinking grapefruit juice.
• C. Take this medication in the morning.
• D. Increase your intake of potassium-rich foods.

Correct answer: B

Rationale: The correct instruction for a client with a new prescription for Simvastatin is to avoid drinking grapefruit juice. Grapefruit juice can inhibit the metabolism of Simvastatin, leading to increased blood levels of the drug and a higher risk of adverse effects such as muscle pain and liver damage. It is important to educate the client about this potential interaction to ensure the safe and effective use of the medication. Choices A, C, and D are incorrect because taking Simvastatin with food or in the morning and increasing potassium-rich foods intake are not specifically related to the safe use of Simvastatin. Avoiding grapefruit juice is crucial to prevent drug interactions.

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