Nursing Elites

1. A client is admitted with deep vein thrombosis (DVT) and is receiving heparin therapy. What is the most important laboratory value to monitor during heparin therapy?

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

Correct answer: C

Rationale: The activated partial thromboplastin time (aPTT) is the most important laboratory value to monitor during heparin therapy. It measures the intrinsic pathway of coagulation and is used to assess the effectiveness of heparin as an anticoagulant. Keeping the aPTT within the therapeutic range is crucial to prevent complications such as bleeding or clot formation. Prothrombin time (PT) and International normalized ratio (INR) are used to monitor warfarin therapy, not heparin. Platelet count is important to assess for thrombocytopenia, a potential side effect of heparin, but it is not the primary laboratory value to monitor the effectiveness of heparin therapy.

2. The nurse is caring for a client in atrial fibrillation. The atrial heart rate is 250, and the ventricular rate is controlled at 75. Which of the following findings is cause for the most concern?

• A. Diminished bowel sounds
• B. Loss of appetite
• C. A cold, pale lower leg
• D. Tachypnea

Correct answer: C

Rationale: A cold, pale lower leg is cause for the most concern as it could indicate compromised blood circulation, potentially leading to serious complications like ischemia or thrombosis. Diminished bowel sounds, loss of appetite, and tachypnea are not directly related to the client's condition in atrial fibrillation and the heart rate discrepancy.

3. A client with heart failure is prescribed spironolactone. What is the nurse's priority intervention?

• A. Monitor the client's potassium levels closely.
• B. Assess for signs of hyperkalemia.
• C. Instruct the client to increase intake of potassium-rich foods.
• D. Increase the client’s fluid intake to prevent dehydration.

Correct answer: B

Rationale: The correct answer is B: Assess for signs of hyperkalemia. Spironolactone is a potassium-sparing diuretic, which can cause hyperkalemia (high potassium levels). Therefore, the nurse's priority intervention should be to assess the client for signs of hyperkalemia, such as muscle weakness, fatigue, and potentially dangerous cardiac arrhythmias. Monitoring potassium levels closely (choice A) is important but assessing for signs of hyperkalemia takes precedence. Instructing the client to increase intake of potassium-rich foods (choice C) can exacerbate hyperkalemia in this case. Increasing the client’s fluid intake to prevent dehydration (choice D) is not directly related to the potential side effect of spironolactone.

4. A client with cirrhosis and ascites asks about fluid restriction. What is the nurse’s best response?

• A. Increase the client's fluid intake gradually.
• B. Restrict oral fluids to 1500 ml per day.
• C. Explain the importance of following a low-sodium diet.
• D. Increase dietary protein to reduce fluid retention.

Correct answer: B

Rationale: The correct answer is B: 'Restrict oral fluids to 1500 ml per day.' In clients with cirrhosis and ascites, fluid restriction is essential to prevent fluid overload, which can worsen symptoms of liver failure. Option A is incorrect because increasing fluid intake would exacerbate the issue of fluid overload. Option C, while important, is not the best initial response to the client's question about fluid restriction. Option D is incorrect as increasing dietary protein does not directly address fluid restriction in clients with cirrhosis and ascites.

5. A client with diabetes mellitus is experiencing hyperglycemia. What laboratory value should the nurse monitor to evaluate long-term glucose control?

• A. Blood glucose level
• B. Glycosylated hemoglobin (A1C)
• C. Urine output
• D. Serum ketone level

Correct answer: B

Rationale: The correct answer is B: Glycosylated hemoglobin (A1C). Glycosylated hemoglobin reflects long-term glucose control over the past three months. Monitoring blood glucose levels provides information on the current glucose status and immediate control, but it does not give a comprehensive view of long-term control. Urine output and serum ketone levels are important indicators for other aspects of diabetes management, such as hydration status and ketone production during hyperglycemic episodes, but they do not directly reflect long-term glucose control.

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