Nursing Elites

1. The LPN/LVN is assisting in the care of a client with a diagnosis of heart failure who is receiving digoxin (Lanoxin). Which laboratory result should the nurse monitor closely?

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

Correct answer: B

Rationale: The correct answer is serum potassium. Monitoring serum potassium levels is crucial when a client is receiving digoxin (Lanoxin) because low potassium levels can increase the risk of digoxin toxicity. Digoxin and low potassium levels can lead to serious cardiac complications, such as arrhythmias. Therefore, close monitoring of serum potassium is essential to prevent adverse effects and ensure the safe administration of digoxin in clients with heart failure. Serum sodium, serum calcium, and serum glucose levels are also important laboratory values to monitor in clients with heart failure, but they are not directly associated with the risk of digoxin toxicity. Monitoring these values helps in assessing overall health status, fluid balance, and metabolic functions in the client.

2. The healthcare provider is monitoring a client with left-sided heart failure. Which assessment finding indicates that the client's condition is worsening?

• A. Clear lung sounds
• B. Increased peripheral pulses
• C. Bibasilar crackles
• D. Improved activity tolerance

Correct answer: C

Rationale: Bibasilar crackles are abnormal lung sounds that indicate fluid accumulation in the lungs, a sign that left-sided heart failure is worsening. This finding suggests that the client's condition is deteriorating and requires prompt intervention to prevent further complications. Clear lung sounds (Choice A) are normal and would not indicate worsening heart failure. Increased peripheral pulses (Choice B) may be seen in conditions like anxiety or exercise, but not specifically in worsening left-sided heart failure. Improved activity tolerance (Choice D) would be a positive sign, not an indicator of worsening heart failure.

3. 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.

4. The nurse is caring for a client receiving anticoagulant therapy. Which instruction should the nurse reinforce with the client to prevent bleeding complications?

• A. Use a soft-bristle toothbrush and electric razor.
• B. Increase your intake of vitamin K-rich foods.
• C. Take aspirin if you have a headache.
• D. Avoid using ice packs for injuries.

Correct answer: A

Rationale: The correct instruction to prevent bleeding complications in a client on anticoagulant therapy is to use a soft-bristle toothbrush and an electric razor. These implements help reduce the risk of bleeding by being gentle on the skin and reducing the chances of cuts or abrasions that could lead to bleeding in individuals on anticoagulants. Choice B is incorrect because increasing intake of vitamin K-rich foods can interfere with the action of anticoagulants. Choice C is incorrect as aspirin is a blood thinner and can increase the risk of bleeding when combined with anticoagulant therapy. Choice D is incorrect as ice packs can help reduce bleeding and swelling in injuries, but in a client on anticoagulant therapy, it is important to avoid potential trauma to the skin that could lead to bleeding.

5. The client is being ambulated due to activity intolerance caused by bacterial endocarditis. How can the nurse determine that the client is best tolerating ambulation?

• A. Mild dyspnea after walking 10 feet
• B. Minimal chest pain rated 1 on a 1-to-10 pain scale
• C. Pulse rate that increases from 68 to 94 beats per minute
• D. Blood pressure that increases from 114/82 to 118/86 mm Hg

Correct answer: D

Rationale: A slight increase in blood pressure without significant symptoms indicates that the client is tolerating the activity. In this scenario, a mild increase in blood pressure without other symptoms is a positive sign of tolerance to ambulation despite the underlying condition of bacterial endocarditis. Choices A, B, and C are not the best indicators of tolerance to ambulation in this case. Mild dyspnea after walking a short distance, minimal chest pain, and an increase in pulse rate are common signs that the activity might not be well-tolerated by the client with a history of bacterial endocarditis.

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