Nursing Elites

1. Which lab value is critical for monitoring warfarin therapy?

• A. Monitor INR
• B. Monitor platelet count
• C. Monitor sodium levels
• D. Monitor calcium levels

Correct answer: A

Rationale: The correct answer is A: Monitor INR. INR (International Normalized Ratio) is crucial for monitoring warfarin therapy as it helps assess the therapeutic effectiveness and bleeding risks associated with the medication. INR measures the clotting tendency of blood, which is essential in determining the appropriate dosage of warfarin. Monitoring platelet count (B), sodium levels (C), or calcium levels (D) is not primarily used for assessing warfarin therapy. Platelet count is more relevant in assessing bleeding disorders, while sodium and calcium levels are typically monitored for different medical conditions unrelated to warfarin therapy.

2. A nurse is caring for a client who is receiving furosemide. Which of the following laboratory values should the nurse monitor to evaluate the effectiveness of the medication?

• A. Serum sodium.
• B. Serum glucose.
• C. Serum potassium.
• D. Serum calcium.

Correct answer: C

Rationale: The correct answer is C: Serum potassium. Furosemide is a potassium-wasting diuretic, meaning it can lead to potassium loss in the body. Monitoring serum potassium levels is crucial to evaluate the effectiveness of furosemide and prevent hypokalemia. Options A, B, and D are incorrect because furosemide does not directly affect sodium, glucose, or calcium levels in the same way it impacts potassium levels.

3. A nurse is caring for a client who is receiving a continuous heparin infusion. Which of the following laboratory values should the nurse monitor?

• A. Hemoglobin
• B. aPTT
• C. INR
• D. Platelet count

Correct answer: B

Rationale: The correct answer is B: aPTT. The activated partial thromboplastin time (aPTT) is monitored to assess the therapeutic effect of heparin and to adjust the infusion rate if needed. Monitoring hemoglobin levels (choice A) is important for assessing anemia but is not specific to heparin therapy. INR (choice C) is used to monitor the effects of warfarin, not heparin. Platelet count (choice D) is important to monitor for heparin-induced thrombocytopenia, but aPTT is the primary laboratory value used to monitor heparin therapy.

4. A nurse is teaching a client who has a new prescription for captopril. Which of the following instructions should the nurse include?

• A. Take this medication with food.
• B. Take this medication 1 hour before meals.
• C. Avoid potassium supplements while taking this medication.
• D. You may experience a persistent, dry cough while taking this medication.

Correct answer: D

Rationale: The correct answer is D. Captopril is known to cause a persistent, dry cough as a common side effect. Instructing the client about this potential side effect is crucial for their awareness. Choices A and B are incorrect because captopril is usually taken on an empty stomach. Choice C is incorrect because captopril can lead to hyperkalemia, so potassium supplements may be necessary in some cases.

5. A nurse is teaching a client who has a new prescription for alendronate. Which of the following instructions should the nurse include in the teaching?

• A. Take this medication at bedtime.
• B. Take this medication with food.
• C. Remain upright for at least 30 minutes after taking this medication.
• D. Avoid taking this medication with calcium-rich foods.

Correct answer: C

Rationale: The correct answer is C: 'Remain upright for at least 30 minutes after taking this medication.' This instruction is crucial when taking alendronate as it reduces the risk of esophagitis by preventing the medication from irritating the esophagus. Choice A is incorrect because alendronate should be taken in the morning, not at bedtime, to enhance absorption. Choice B is incorrect as alendronate should be taken on an empty stomach, preferably in the morning, with a full glass of water. Choice D is incorrect as there are no specific restrictions on taking alendronate with calcium-rich foods.

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