Nursing Tips: EKG

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An asynchronous pacemaker fires at a constant rate regardless of the heart's electrical activity.

Asynchronous Pacemaker

EKG Interpretation EKG
An asynchronous pacemaker fires at a constant rate regardless of the heart's electrical activity.
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A synchronous pacemaker only fires when the heart's intrinsic rate falls below a certain rate.

Synchronous Pacemaker

EKG Interpretation EKG
A synchronous pacemaker only fires when the heart's intrinsic rate falls below a certain rate.
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The sinus node (SA node) is the heart's normal pacemaker.

Sinus Node (SA node)

EKG Interpretation EKG
The sinus node (SA node) is the heart's normal pacemaker.
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