How should the nurse interpret the rhythm depicted in the image?

normal sinus rhythm

sinus bradycardia

asystole

sinus tachycardia

Answer and Explanation

The Correct Answer is C

A. This would show a regular rhythm with a consistent rate (60-100 bpm) and clear P waves before each QRS complex, which is not present in asystole.

B. This indicates a slow heart rate (below 60 bpm) but would still display P waves and QRS complexes; asystole shows no electrical activity.

C. This is the correct interpretation as it represents a flatline on the ECG, indicating no electrical activity in the heart.

D. This would show a rapid heart rate (above 100 bpm) with present P waves, which is not the case in asystole.

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Correct Answer is A

Explanation

A. Respiratory acidosis: The pH is low (indicating acidosis), and the Paco₂ is elevated, which signifies that carbon dioxide retention is causing the acidosis. This pattern indicates respiratory acidosis, as the elevated HCO₃ suggests a compensatory response.

B. Respiratory alkalosis: Respiratory alkalosis would show a high pH with a low Paco₂. This is not consistent with the client’s lab results.

C. Metabolic acidosis: Metabolic acidosis would show a low pH with a low HCO₃. In this case, the HCO₃ is slightly elevated, ruling out metabolic acidosis.

D. Metabolic alkalosis: Metabolic alkalosis would show a high pH with an elevated HCO₃, which does not match the client’s results.

A. Early ventricular repolarization B. Atrial depolarization C. Slow repolarization of ventricular Purkinje fibers D. Ventricular depolarization

Correct Answer is B

Explanation

A. Early ventricular repolarization is represented by the T wave, not the P wave.

B. The P wave represents atrial depolarization, which is the electrical activity that triggers the contraction of the atria.

C. Slow repolarization of ventricular Purkinje fibers is represented by the T wave, not the P wave.

D. Ventricular depolarization is represented by the QRS complex, not the P wave.

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How should the nurse interpret the rhythm depicted in the image?

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Naxlex Comprehensive Predictor Exams

Correct Answer is A

Explanation

A nurse is interpreting the ECG strip of a client who has bradycardia. Which cardiac components should the nurse identify as the role of the P wave?

Correct Answer is B

Explanation

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