Nursing Elites

1. A client with atrial fibrillation is receiving warfarin (Coumadin). The nurse should reinforce which instruction?

• A. Avoid foods high in vitamin K.
• B. Increase intake of dairy products.
• C. Limit intake of high-fiber foods.
• D. Avoid protein-rich foods.

Correct answer: A

Rationale: The correct answer is A: Avoid foods high in vitamin K. Clients taking warfarin need to be cautious with their vitamin K intake because vitamin K can counteract the effects of the medication. Therefore, it is essential to avoid foods high in vitamin K to maintain the therapeutic effects of warfarin. Choice B is incorrect because increasing dairy product intake is not specifically related to warfarin therapy. Choice C is incorrect as high-fiber foods do not interfere with warfarin therapy. Choice D is incorrect as protein-rich foods are not contraindicated with warfarin therapy.

2. Prior to a cardiac catheterization, what instruction should the client be reminded of?

• A. You will need to be NPO for 6 to 8 hours before the procedure.
• B. You will not be able to move around during the procedure.
• C. You will be required to lie still for several hours after the test.
• D. You will not have to drink any fluids immediately before the test.

Correct answer: A

Rationale: Being NPO (nothing by mouth) for 6 to 8 hours before a cardiac catheterization is crucial to prevent complications such as aspiration during the procedure. This helps ensure the safety and accuracy of the test results by minimizing the risk of food or liquid in the stomach interfering with the procedure. Choice B is incorrect because the client will need to lie still during the procedure to ensure its accuracy. Choice C is incorrect as the client is typically required to lie flat for a few hours after the test, not several hours. Choice D is incorrect as the client is usually not allowed to drink fluids immediately before the test to prevent complications.

3. A client with hypertension is prescribed a thiazide diuretic. What instruction should the nurse reinforce to the client?

• A. Take the medication in the morning.
• B. Increase potassium intake in the diet.
• C. Weigh yourself daily.
• D. Limit fluid intake to 2 liters per day.

Correct answer: C

Rationale: The correct answer is to weigh oneself daily. This instruction is important as daily weights help monitor fluid loss and are crucial for detecting early signs of fluid imbalance when taking a diuretic. Weighing daily allows for timely adjustments in treatment and helps prevent complications associated with fluid imbalance. Choice A is not directly related to the client's need for monitoring fluid balance. Choice B, although important for some diuretics, is not specific to thiazide diuretics. Choice D is not appropriate as limiting fluid intake without proper monitoring can lead to dehydration, especially when taking diuretics.

4. Which laboratory test should be monitored to evaluate the effectiveness of anticoagulant therapy in a client with deep vein thrombosis (DVT)?

• A. Complete blood count (CBC)
• B. Activated partial thromboplastin time (aPTT)
• C. Serum electrolytes
• D. Liver function tests

Correct answer: B

Rationale: Activated partial thromboplastin time (aPTT) is the laboratory test monitored to evaluate the effectiveness of anticoagulant therapy, particularly with heparin. It measures the time it takes for blood to clot, and monitoring aPTT helps ensure the therapeutic range is maintained to prevent clot formation and excessive bleeding. Choices A, C, and D are incorrect because a complete blood count (CBC) assesses overall health, serum electrolytes evaluate the body's electrolyte balance, and liver function tests assess liver health, none of which directly evaluate the effectiveness of anticoagulant therapy for DVT.

5. A client with heart failure is prescribed an angiotensin-converting enzyme (ACE) inhibitor. The nurse should reinforce which instruction?

• A. Take the medication at bedtime.
• B. Report a persistent dry cough.
• C. Increase potassium-rich foods in the diet.
• D. Avoid taking the medication with meals.

Correct answer: B

Rationale: The correct answer is to instruct the client to report a persistent dry cough. ACE inhibitors can cause a common side effect of a persistent dry cough, which should be promptly reported to the healthcare provider for further evaluation and possible medication adjustment. Option A is incorrect because the timing of ACE inhibitor administration is usually not specified to be at bedtime. Option C is incorrect as increasing potassium-rich foods can lead to hyperkalemia when taking ACE inhibitors. Option D is incorrect because ACE inhibitors can be taken with or without food.

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