A nurse is assisting with collecting data on a client who is on a continuous ECG monitor. The client's ECG tracing shows no identifiable P waves and an irregular ventricular rate. The nurseshould recognize the client is experiencing which of the following cardiac dysrhythmias?

Complete heart block

Atrial fibrillation

Sinus tachycardia

First-degree AV block.

Answer and Explanation

The Correct Answer is B

a. Complete heart block: Complete heart block would typically present with a regular ventricular rate, but with no association between P waves and QRS complexes.

b. Atrial fibrillation: Atrial fibrillation is characterized by the absence of identifiable P waves and an irregular ventricular rate. The atria fibrillate, leading to chaotic electrical activity and an irregular ventricular response.

c. Sinus tachycardia: Sinus tachycardia is characterized by a regular ventricular rate and identifiable P waves. It is not associated with the absence of P waves.

d. First-degree AV block: First-degree AV block is characterized by a prolonged PR interval, but it does not result in the absence of P waves. The relationship between P waves and QRS

complexes is maintained.

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Correct Answer is A

Explanation

a. Serum potassium: Furosemide is a loop diuretic that can lead to potassium loss, potentially causing hypokalemia. Monitoring potassium levels is crucial to prevent complications such as cardiac arrhythmias.

b. Serum amylase: This is not directly related to furosemide therapy. Amylase is an enzyme associated with pancreatic and salivary function.

c. Serum triglyceride: Furosemide does not typically have a direct impact on serum triglyceride levels.

d. Serum cholesterol: Furosemide does not typically have a direct impact on serum cholesterol levels.

A. Potassium level of 3.0 mEq/L B. Heart rate of 66/min C. BP of 132/82 mm Hg D. Digoxin level of 1.2 ng/ml

Correct Answer is A

Explanation

a. Potassium level of 3.0 mEq/L: Hypokalemia is a potential adverse effect of digoxin, and a

potassium level of 3.0 mEq/L is below the normal range. Low potassium levels can increase the risk of digoxin toxicity.

b. Heart rate of 66/min: A heart rate of 66/min is within the normal range. Digoxin is used to

treat conditions like atrial fibrillation, and the heart rate should be within an appropriate range for the client's condition.

c. BP of 132/82 mm Hg: Blood pressure within the normal range does not require immediate reporting in the context of digoxin administration.

d. Digoxin level of 1.2 ng/ml: The digoxin level of 1.2 ng/ml is within the therapeutic range, and it does not require immediate reporting.

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A nurse is assisting with collecting data on a client who is on a continuous ECG monitor. The client's ECG tracing shows no identifiable P waves and an irregular ventricular rate. The nurseshould recognize the client is experiencing which of the following cardiac dysrhythmias?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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Correct Answer is A

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Correct Answer is A

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