Asked by Kaleb Alvarado on May 21, 2024

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A nurse is reviewing the electrocardiogram (ECG) results. Which portion of the conduction system does the nurse consider when evaluating the P wave?

A) SA node
B) AV node
C) Bundle of His
D) Purkinje fibers

Electrocardiogram (ECG)

Graphic record of the electrical activity of the myocardium.

Conduction System

The network of nodes and special pathways in the heart that control and coordinate the timing and sequence of the cardiac cycle (heartbeat).

P Wave

The first wave on an electrocardiogram (ECG) that represents atrial depolarization, indicating the electrical activity that leads to the contraction of the heart's atria.

  • Identify key structures and their functions within the cardiac conduction system and how they relate to ECG readings.
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NM
Namav MotianiMay 27, 2024
Final Answer :
A
Explanation :
The P wave represents the electrical conduction through both atria; the SA node initiates electrical conduction through the atria. The AV node conducts down through the bundle of His and the Purkinje fibers to cause ventricular contraction.