A nurse is teaching a newly licensed nurse about evaluating cardiac rhythms. Which of the following best explains calculation of the heart rate?

Look for P waves on the strip

Count how many QRS occur in a 6 second strip

Read the monitor or electrocardiogram interpretation.

Measure the T waves

Answer and Explanation

The Correct Answer is B

Rationale:

A. Looking for P waves is important for assessing atrial activity, but it does not directly calculate heart rate.

B. Counting how many QRS complexes occur in a 6-second strip and multiplying by 10 is a quick and accurate way to calculate heart rate.

C. Reading the monitor or ECG interpretation provides information about the rhythm and morphology of the heart, but it does not directly calculate heart rate.

D. Measuring T waves is important for assessing cardiac repolarization, but it does not directly calculate heart rate.

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Correct Answer is C

Explanation

Rationale:

A. The client may need an annual flu vaccine, but this is not specific to infective endocarditis.

B. Updating the Covid-19 vaccination is important, but this is not specific to infective endocarditis.

C. The client will require antibiotics before dental work to prevent the spread of bacteria from the mouth to the heart.

D. Avoiding sick contacts is important for general health but is not specific to infective endocarditis.

A. Anorexia B. Fever C. Dyspnea D. Malaise

Correct Answer is B

Explanation

Rationale:

A. Anorexia is a common symptom of infective endocarditis but is not typically the priority assessment finding.

B. Fever is a hallmark sign of infective endocarditis and should be monitored closely.

C. Dyspnea is a common symptom of infective endocarditis but is not typically the priority assessment finding.

D. Malaise is a common symptom of infective endocarditis but is not typically the priority assessment finding.

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A nurse is teaching a newly licensed nurse about evaluating cardiac rhythms. Which of the following best explains calculation of the heart rate?

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Naxlex Comprehensive Predictor Exams

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Correct Answer is C

Explanation

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Correct Answer is B

Explanation

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