Nursing Elites

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

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

Correct answer: B

Rationale: Prothrombin time (PT) and international normalized ratio (INR) are essential laboratory tests to monitor the effectiveness of warfarin (Coumadin) therapy. These tests help assess the clotting time and the desired anticoagulant effect of the medication. Monitoring PT and INR levels is crucial to ensure that the client is within the therapeutic range, reducing the risk of bleeding or clotting complications associated with warfarin therapy. Platelet count (Choice A) measures the number of platelets in the blood and is not specific for monitoring warfarin therapy. Activated partial thromboplastin time (aPTT) (Choice C) is more commonly used to monitor heparin therapy, not warfarin. Fibrinogen level (Choice D) assesses the amount of fibrinogen in the blood and is not a specific test for monitoring warfarin therapy.

2. A patient with a diagnosis of peptic ulcer disease is prescribed omeprazole. When should the patient take this medication for optimal effectiveness?

• A. With meals
• B. At bedtime
• C. Before meals
• D. After meals

Correct answer: C

Rationale: Omeprazole is best taken before meals for optimal effectiveness in reducing stomach acid production and promoting ulcer healing. Taking it before meals allows the medication to act on the proton pumps before food intake triggers acid production, thereby maximizing its therapeutic benefits. Choices A, B, and D are incorrect because taking omeprazole with meals, at bedtime, or after meals may not align with its mechanism of action, potentially reducing its effectiveness in managing peptic ulcer disease.

3. When evaluating a client's understanding of wearing a Holter monitor, which statement made by the client would indicate to the nurse that the client understands the procedure?

• A. I must record any symptoms occurring with my activity.
• B. I am not looking forward to staying in bed for 24 hours.
• C. I really am dreading the frequent blood drawing.
• D. I know that I shouldn't get close to my microwave oven.

Correct answer: A

Rationale: The correct answer is A. Recording symptoms that occur with activity is crucial when wearing a Holter monitor. This information helps in correlating symptoms with cardiac events, aiding in the diagnosis and treatment of the client's condition. The client's understanding of this aspect demonstrates comprehension of the procedure and its purpose.

4. What instruction should a patient with a history of hypertension be provided when being discharged with a prescription for a thiazide diuretic?

• A. Avoid foods high in potassium.
• B. Take the medication at bedtime.
• C. Monitor weight daily.
• D. Limit fluid intake to 1 liter per day.

Correct answer: C

Rationale: The correct instruction for a patient with a history of hypertension being discharged with a prescription for a thiazide diuretic is to monitor weight daily. This is important because thiazide diuretics can cause fluid imbalances, and monitoring weight daily can help detect significant changes early. Choice A, avoiding foods high in potassium, is not directly related to thiazide diuretics. Choice B, taking the medication at bedtime, may vary depending on the specific medication but is not a universal instruction. Choice D, limiting fluid intake to 1 liter per day, is not appropriate as adequate hydration is important to prevent complications like hypokalemia.

5. A patient with type 2 diabetes is prescribed metformin. What instruction should the nurse provide regarding this medication?

• A. Take the medication on an empty stomach.
• B. Monitor for signs of hypoglycemia.
• C. Take the medication with meals.
• D. Increase intake of simple carbohydrates.

Correct answer: C

Rationale: The correct instruction for a patient prescribed metformin is to take the medication with meals. This helps reduce gastrointestinal side effects commonly associated with metformin. Patients should also be educated about the signs of lactic acidosis, a rare but serious side effect associated with metformin use.

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