Nursing Elites

1. The client with a history of heart failure is receiving digoxin (Lanoxin). Which electrolyte imbalance increases the risk of digoxin toxicity?

• A. Hypernatremia
• B. Hypercalcemia
• C. Hypokalemia
• D. Hypomagnesemia

Correct answer: C

Rationale: Hypokalemia increases the risk of digoxin toxicity as low potassium levels enhance the effects of digoxin on the heart, leading to toxicity and potential adverse effects. Hypernatremia (Choice A) is not directly associated with an increased risk of digoxin toxicity. Hypercalcemia (Choice B) does not increase the risk of digoxin toxicity. Hypomagnesemia (Choice D) can contribute to digoxin toxicity, but hypokalemia has a more significant impact on increasing the risk.

2. A client with atrial fibrillation is receiving warfarin (Coumadin). The nurse should monitor which laboratory test to determine the effectiveness of the therapy?

• A. Prothrombin time (PT) and international normalized ratio (INR)
• B. Activated partial thromboplastin time (aPTT)
• C. Complete blood count (CBC)
• D. Fibrinogen level

Correct answer: A

Rationale: To monitor the effectiveness of warfarin therapy in a client with atrial fibrillation, the nurse should assess the Prothrombin time (PT) and international normalized ratio (INR) levels. These tests help determine the clotting ability of the blood and ensure that the client's anticoagulation levels are within the therapeutic range, reducing the risk of bleeding or clotting complications. Activated partial thromboplastin time (aPTT) (Choice B) is more commonly used to monitor heparin therapy. Complete blood count (CBC) (Choice C) provides information about the cellular components of blood but does not directly assess the effectiveness of warfarin therapy. Fibrinogen level (Choice D) is not typically used to monitor warfarin therapy; it reflects the level of fibrinogen in the blood, which is involved in the clotting process.

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

• A. Take the medication in the morning.
• B. Avoid consuming grapefruit juice.
• C. Take the medication with a full glass of water.
• D. Monitor for signs of weight gain.

Correct answer: B

Rationale: The correct instruction for the nurse to include is to 'Avoid consuming grapefruit juice.' Grapefruit juice can increase sertraline levels, leading to an elevated risk of side effects. Instructing the client to avoid grapefruit juice is crucial to prevent potential interactions that could impact the effectiveness and safety of the medication. The other options are not directly related to sertraline administration. Taking the medication in the morning may vary depending on individual preferences or the prescriber's directions. Taking the medication with a full glass of water is a general instruction for many medications and not specific to sertraline. Monitoring for signs of weight gain is important but not a direct instruction related to taking sertraline.

4. When teaching a client who has a new prescription for metformin, which of the following instructions should the nurse include?

• A. Take the medication with food.
• B. Monitor for signs of hyperglycemia.
• C. Increase your fluid intake.
• D. Expect a metallic taste in your mouth.

Correct answer: C

Rationale: The correct instruction for a client starting metformin is to increase fluid intake. This is crucial to prevent gastrointestinal discomfort, a common side effect of metformin. Adequate hydration helps reduce the risk of gastrointestinal upset and ensures the medication is well-tolerated. Option A is generally true for metformin but is not as essential as maintaining proper hydration. Option B is important but not directly related to starting metformin. Option D is incorrect as a metallic taste in the mouth is not typically associated with metformin.

5. A client with peripheral arterial disease complains of leg pain while walking. The nurse should reinforce which teaching point with the client?

• A. Wear compression stockings daily.
• B. Increase daily walking distance gradually.
• C. Elevate legs above heart level when resting.
• D. Use a heating pad to soothe leg muscles.

Correct answer: B

Rationale: For clients with peripheral arterial disease experiencing leg pain while walking, the priority teaching point is to gradually increase daily walking distance. This approach helps improve circulation, build tolerance, and reduce symptoms over time. While compression stockings can be beneficial for circulation, they are not the priority teaching point in this scenario. Elevating legs above heart level when resting is more appropriate for clients with venous insufficiency, not peripheral arterial disease. Using a heating pad is not recommended as it can potentially cause burns or skin damage in clients with compromised circulation.

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