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 nurse is caring for a client with heart failure who is receiving digoxin (Lanoxin). Which sign of digoxin toxicity should the nurse monitor for?

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

Correct answer: B

Rationale: Corrected Rationale: Bradycardia is a common sign of digoxin toxicity. Digoxin can cause bradycardia due to its effects on the heart's electrical conduction system. Monitoring for a slow heart rate is crucial as it indicates potential toxicity. Hypertension, hyperglycemia, and insomnia are not typically associated with digoxin toxicity. Hypertension is more commonly seen in other conditions, hyperglycemia is not a typical sign of digoxin toxicity, and insomnia is not a recognized symptom of digoxin toxicity.

3. A client has a new prescription for lisinopril. Which of the following instructions should the nurse include?

• A. Monitor blood pressure daily.
• B. Take the medication with food.
• C. Increase intake of potassium-rich foods.
• D. Avoid consuming grapefruit juice.

Correct answer: A

Rationale: The correct answer is to instruct the client to monitor their blood pressure daily. Lisinopril is known to cause hypotension, so monitoring blood pressure regularly is essential to detect any potential issues early on. Choice B is incorrect as lisinopril is usually taken on an empty stomach. Choice C is incorrect as lisinopril can increase potassium levels, so additional intake of potassium-rich foods may lead to hyperkalemia. Choice D is incorrect because grapefruit juice can interact with lisinopril, leading to adverse effects.

4. The healthcare provider is reinforcing dietary instructions to a client with coronary artery disease who has been prescribed a low-cholesterol diet. The healthcare provider should advise the client to choose which food item?

• A. Whole milk
• B. Oatmeal with fresh fruit
• C. Fried chicken
• D. Bacon and eggs

Correct answer: B

Rationale: Oatmeal with fresh fruit is the correct choice for a client with coronary artery disease on a low-cholesterol diet. Oatmeal is a heart-healthy option that is low in cholesterol and saturated fats. Fresh fruits are also a good source of essential nutrients and fiber. Choices A, C, and D are not suitable for a low-cholesterol diet. Whole milk, fried chicken, bacon, and eggs are high in cholesterol and saturated fats, which can be detrimental to individuals with coronary artery disease.

5. 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.

Similar Questions