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 is starting a new prescription for verapamil. Which of the following instructions should be included?

• A. Take the medication with a full glass of water.
• B. Avoid grapefruit juice.
• C. Monitor blood pressure regularly.
• D. Monitor heart rate daily.

Correct answer: B

Rationale: Clients prescribed verapamil should be advised to avoid grapefruit juice as it can potentiate the drug's effects, leading to adverse reactions. Grapefruit juice can inhibit the metabolism of verapamil, resulting in higher blood levels of the medication and an increased risk of side effects. Instructions such as taking the medication with a full glass of water (Choice A) are not specific to verapamil and are generally recommended. While monitoring blood pressure regularly (Choice C) is important for clients on antihypertensive medications, it is not a direct concern related to verapamil. Monitoring heart rate daily (Choice D) is not a primary consideration when starting verapamil, as it is more commonly used for its effects on blood pressure and arrhythmias rather than heart rate.

3. A client is receiving daily doses of Oprelvekin. Which of the following laboratory values should be monitored to determine the effectiveness of this medication?

• A. Hemoglobin
• B. Absolute neutrophil count
• C. Platelet count
• D. Total white blood cell count

Correct answer: C

Rationale: Oprelvekin is a medication that stimulates platelet production. Therefore, monitoring the platelet count is essential to assess the effectiveness of this drug. The expected outcome for oprelvekin therapy is a platelet count greater than 50,000/mm^3. Changes in platelet count can indicate the response to the medication and help in adjusting the treatment plan accordingly. Monitoring hemoglobin, absolute neutrophil count, or total white blood cell count is not directly related to the mechanism of action of Oprelvekin and therefore would not provide accurate information on the drug's effectiveness.

4. What is the antidote for Heparin?

• A. Protamine sulfate
• B. Vitamin K
• C. Naloxone
• D. Toradol

Correct answer: A

Rationale: The correct answer is A: Protamine sulfate. Heparin is an anticoagulant that prevents blood clotting. Protamine sulfate is the antidote for Heparin as it binds to heparin, neutralizing its anticoagulant effects. Vitamin K is not the antidote for Heparin; it is used to reverse the effects of warfarin, another anticoagulant. Naloxone is an opioid antagonist for opioids, and Toradol is a nonsteroidal anti-inflammatory drug (NSAID) for pain relief. Therefore, the correct antidote for Heparin is Protamine sulfate.

5. A healthcare professional is obtaining a medication history from a client who is to receive Imipenem-cilastatin IV to treat an infection. Which of the following medications the client also receives puts them at risk for a medication interaction?

• A. Regular insulin
• B. Furosemide
• C. Valproic acid
• D. Ferrous sulfate

Correct answer: C

Rationale: The correct answer is C, Valproic acid. Imipenem-cilastatin decreases the blood levels of valproic acid, an antiseizure medication, which can lead to increased seizure activity. Monitoring and adjusting the dosage of valproic acid may be necessary when co-administered with Imipenem-cilastatin to prevent adverse effects. Choices A, B, and D do not typically interact significantly with Imipenem-cilastatin and are not associated with a high risk of adverse interactions in this scenario.

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