Nursing Elites

1. The LPN/LVN is assisting in caring for a client in the telemetry unit who is receiving an intravenous infusion of 1000 mL of 5% dextrose with 40 mEq of potassium chloride. Which occurrence observed on the cardiac monitor indicates the presence of hyperkalemia?

• A. Tall, peaked T waves
• B. ST segment depressions
• C. Shortened P-R intervals
• D. Shortening of the QRS complex

Correct answer: A

Rationale: In hyperkalemia, tall, peaked T waves are a distinct ECG finding. These T waves can be seen as a result of increased serum potassium levels, affecting the repolarization phase of the cardiac action potential. It is crucial for healthcare providers to recognize this ECG change promptly as hyperkalemia can lead to serious cardiac arrhythmias and complications. ST segment depressions, shortened P-R intervals, and shortening of the QRS complex are not typically associated with hyperkalemia. ST segment depressions are more indicative of myocardial ischemia or infarction. Shortened P-R intervals may be seen in conditions like Wolff-Parkinson-White syndrome. Shortening of the QRS complex is associated with conditions affecting the conduction system of the heart, such as bundle branch blocks.

2. The LPN/LVN is assisting in the care of a client with chronic heart failure who is receiving digoxin (Lanoxin). Which sign should the nurse monitor for that could indicate digoxin toxicity?

• A. Bradycardia
• B. Tachycardia
• C. Hypertension
• D. Hyperglycemia

Correct answer: A

Rationale: Bradycardia is a common sign of digoxin toxicity and should be closely monitored. Digoxin toxicity can lead to various cardiac dysrhythmias, with bradycardia being a significant indicator. Monitoring the client's heart rate is crucial to detect and manage digoxin toxicity promptly. Tachycardia, hypertension, and hyperglycemia are not typically associated with digoxin toxicity. Tachycardia is more commonly seen with inadequate treatment of heart failure, hypertension is a possible but less common effect, and hyperglycemia is not a typical sign of digoxin toxicity.

3. A client with a diagnosis of hypertension is prescribed atenolol (Tenormin). The nurse should monitor the client for which common side effect of this medication?

• A. Tachycardia
• B. Dry mouth
• C. Hypotension
• D. Increased appetite

Correct answer: C

Rationale: Corrected Rationale: Atenolol is a beta-blocker that commonly causes hypotension by lowering blood pressure. Therefore, monitoring for hypotension is crucial to prevent potential complications in the client receiving this medication. The other options are incorrect: A) Tachycardia is not a common side effect of atenolol as it typically reduces heart rate, B) Dry mouth is not a typical side effect of atenolol, and D) Increased appetite is not commonly associated with atenolol use.

4. A nurse is assessing a client who has been taking lithium carbonate. Which of the following findings should the nurse report to the provider?

• A. Increased urination
• B. Tremors
• C. Weight gain
• D. Blurred vision

Correct answer: B

Rationale: The correct answer is B: Tremors. Tremors are a sign of lithium toxicity and should be reported immediately. Increased urination is a common side effect of lithium but not an urgent concern requiring immediate reporting. Weight gain is also a common side effect of lithium but does not indicate toxicity. Blurred vision is not typically associated with lithium toxicity; therefore, it is not the priority finding to report.

5. The client is receiving digoxin (Lanoxin) for heart failure. Which symptom would indicate digoxin toxicity?

• A. Increased appetite
• B. Yellow or blurred vision
• C. Increased urination
• D. Diarrhea

Correct answer: B

Rationale: Yellow or blurred vision can be a sign of digoxin toxicity. These visual disturbances are concerning as they indicate a potential adverse reaction to the medication. Recognizing this symptom promptly is crucial to prevent serious complications. Increased appetite, increased urination, and diarrhea are not typically associated with digoxin toxicity. Therefore, option B is the correct choice in this scenario.

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