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 ["A","B","D"]

Explanation

Rationale:

A. Fluid overload can lead to increased blood pressure due to the excess fluid circulating in the body.

B. Increased heart rate is a compensatory mechanism in response to fluid volume overload.

C. Increased hematocrit is not typically associated with fluid volume overload.

D. Increased respiratory rate is a compensatory mechanism in response to fluid volume overload.

E. Increased temperature is not typically associated with fluid volume overload.

A. Swelling at the insertion site and cool extremity B. Oozing blood from the insertions site C. The client has not voided since returning to recovery. D. Blood pressure reading of 110/70 and heart rate of 90

Correct Answer is A

Explanation

Rationale:

A. Swelling at the insertion site and cool extremity may indicate bleeding or hematoma formation at the site.

B. Oozing blood from the insertion site is expected immediately after a cardiac catheterization.

C. The client has not voided since returning to recovery is not related to the cardiac catheterization.

D. Blood pressure reading of 110/70 and heart rate of 90 are within normal limits.

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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?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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Correct Answer is ["A","B","D"]

Explanation

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Correct Answer is A

Explanation

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