Nursing Elites

1. A client with a history of atrial fibrillation is prescribed warfarin (Coumadin). Which laboratory value should the nurse monitor to assess the effectiveness of the medication?

• A. Activated partial thromboplastin time (aPTT)
• B. Prothrombin time (PT) and international normalized ratio (INR)
• C. Platelet count
• D. Erythrocyte sedimentation rate (ESR)

Correct answer: B

Rationale: Prothrombin time (PT) and international normalized ratio (INR) are the laboratory values used to monitor the effectiveness of warfarin therapy. These values help ensure that the client is within the therapeutic range for anticoagulation. PT measures the time it takes for blood to clot, while INR standardizes PT results to minimize variations between laboratories. Monitoring these values is crucial to prevent complications such as bleeding or clot formation. Activated partial thromboplastin time (aPTT) (Choice A) is more commonly used to monitor heparin therapy. Platelet count (Choice C) assesses the number of platelets in the blood and is not specific to warfarin therapy. Erythrocyte sedimentation rate (ESR) (Choice D) is a non-specific marker of inflammation and is not used to monitor the effectiveness of warfarin therapy.

2. The LPN/LVN is assisting in the care of a client who has been prescribed enoxaparin (Lovenox) for the prevention of deep vein thrombosis (DVT). Which instruction should the nurse reinforce with the client?

• A. Avoid consuming foods high in vitamin K while taking this medication.
• B. Administer the injection in the same site each time for consistency.
• C. Report any unusual bleeding or bruising to your healthcare provider.
• D. Do not take aspirin if you experience any mild pain or discomfort.

Correct answer: C

Rationale: The correct instruction for the nurse to reinforce with the client is to report any unusual bleeding or bruising to their healthcare provider. This is crucial because unusual bleeding or bruising may indicate excessive anticoagulation, a potential side effect of enoxaparin. Prompt reporting to a healthcare provider is necessary to prevent complications. Choices A, B, and D are incorrect. Choice A is not directly related to enoxaparin and vitamin K interactions. Choice B is incorrect as rotating injection sites is essential for preventing tissue damage and irritation. Choice D is also incorrect as aspirin can increase the risk of bleeding when taken with enoxaparin.

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

• A. Store the medication in a cool, dry place.
• B. Take the medication as directed by the healthcare provider.
• C. Take the medication 30 minutes before meals.
• D. Take the medication at the first sign of chest pain.

Correct answer: D

Rationale: Instructing the client to take nitroglycerin at the first sign of chest pain is crucial for immediate relief of angina symptoms. Nitroglycerin is a fast-acting medication that helps dilate blood vessels, improving blood flow to the heart muscle. Therefore, prompt administration at the onset of chest pain is essential to alleviate anginal episodes effectively. Choices A, B, and C are incorrect because storing the medication properly, taking it as directed, or before meals are not specific instructions for managing acute anginal episodes, which require immediate action for symptom relief.

4. A client has a new prescription for heparin. Which of the following laboratory results should be monitored to evaluate the effectiveness of the medication?

• A. Prothrombin time (PT)
• B. International normalized ratio (INR)
• C. Activated partial thromboplastin time (aPTT)
• D. Platelet count

Correct answer: C

Rationale: Activated partial thromboplastin time (aPTT) is the laboratory result that should be monitored to evaluate the effectiveness of heparin. Heparin works by prolonging the aPTT, and monitoring this parameter helps ensure the medication's effectiveness and safety in preventing clot formation. Prothrombin time (PT) and International normalized ratio (INR) are used to monitor the effectiveness of warfarin, another anticoagulant. Platelet count is essential to assess platelet function and clotting disorders, but it is not specifically used to monitor heparin therapy.

5. A client has a new prescription for digoxin. Which of the following instructions should the nurse include during discharge teaching?

• A. Take the medication with food.
• B. Monitor heart rate daily.
• C. Avoid consuming grapefruit juice.
• D. Increase intake of potassium-rich foods.

Correct answer: B

Rationale: The correct answer is B: 'Monitor heart rate daily.' When a client is prescribed digoxin, it is essential to monitor heart rate daily because digoxin can cause bradycardia, a condition characterized by a slow heart rate. Monitoring the heart rate regularly allows the client to promptly identify any signs of bradycardia and seek medical attention if needed. Choices A, C, and D are incorrect because taking digoxin with food, avoiding grapefruit juice, and increasing potassium-rich foods are not specific instructions related to managing the side effects or monitoring parameters of digoxin therapy.

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