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. A client is receiving heparin therapy. Which of the following laboratory tests should be monitored to evaluate the effectiveness of the therapy?

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

Correct answer: C

Rationale: Activated partial thromboplastin time (aPTT) is the most appropriate laboratory test to monitor the effectiveness of heparin therapy. Heparin works on the intrinsic pathway of the coagulation cascade, and monitoring aPTT helps assess its anticoagulant effect. Therapeutic levels of aPTT for clients on heparin therapy are typically 1.5 to 2.5 times the control value. Prothrombin time (PT) and International normalized ratio (INR) are used to monitor warfarin therapy, which acts on the extrinsic pathway of the coagulation cascade. Complete blood count (CBC) is not specific for monitoring the effectiveness of heparin therapy.

3. Why should the client diagnosed with rheumatic heart disease be advised to notify the dentist before dental procedures?

• A. The client requires prophylactic antibiotics before treatment.
• B. The client may experience dysrhythmias with high-speed drills.
• C. The client may have an adverse reaction to lidocaine with epinephrine.
• D. The client may develop heart failure during stressful events.

Correct answer: A

Rationale: Clients with rheumatic heart disease are at risk for infective endocarditis, a serious infection of the heart lining or valves. They need prophylactic antibiotics before invasive procedures, including dental work, to prevent this life-threatening complication. While dysrhythmias with high-speed drills, adverse reactions to local anesthesia, and the risk of heart failure during stressful events are all concerns for clients with heart conditions, the primary reason for notifying the dentist before dental procedures in rheumatic heart disease is the need for prophylactic antibiotics to prevent infective endocarditis.

4. A client with atrial fibrillation is prescribed warfarin (Coumadin). Which instruction should the nurse give to the client regarding lifestyle changes?

• A. Avoid prolonged sitting or standing.
• B. Use an electric razor to prevent cuts.
• C. Take your medication with a full glass of water.
• D. Eat a diet low in protein.

Correct answer: B

Rationale: The correct answer is B. Using an electric razor is advised to prevent cuts, which is crucial for individuals taking warfarin due to the increased risk of bleeding associated with this medication. Lifestyle changes related to warfarin therapy focus on minimizing the risk of bleeding, and using safety measures such as an electric razor is a practical recommendation to reduce the likelihood of injury. Choices A, C, and D are incorrect. Avoiding prolonged sitting or standing is more related to preventing blood clots than to the bleeding risk of warfarin. Taking warfarin with a full glass of water is not a specific lifestyle change associated with its use. Eating a diet low in protein is not a typical recommendation for individuals on warfarin therapy.

5. The client admitted to the hospital with pulmonary edema is preparing for discharge. The client should be reminded of the importance of complying with which measure to prevent a recurrence?

• A. Weigh oneself every morning before breakfast.
• B. Sleep with the head elevated on multiple pillows.
• C. Adjust diuretic dose without healthcare provider guidance.
• D. Take additional digoxin (Lanoxin) as a preventive measure.

Correct answer: A

Rationale: Monitoring weight daily, especially in the morning before breakfast, is crucial in detecting fluid retention early and preventing pulmonary edema. Sudden weight gain can indicate fluid accumulation, prompting timely intervention to prevent complications. Choice A is the correct answer because daily weight monitoring is a key component in managing heart failure and preventing pulmonary edema recurrence. Choices B and D are not directly related to preventing fluid retention or pulmonary edema recurrence. Choice C is unsafe as adjusting diuretic doses without healthcare provider guidance can lead to electrolyte imbalances and worsening of the condition.

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