The Person Has a Pacemaker That Creates a Pacer Spike

question 15

Multiple Choice

The person has a pacemaker that creates a pacer spike before each QRS on the ECG when the intrinsic heart rate falls below 70. What is the significance of this? It is:

• A)abnormal, because the asynchronous pacemaker is not maintaining the heart rate.
• B)normal, because the asynchronous pacemaker is responding to the heart rate change as designed.
• C)normal, because the demand pacemaker is responding to the heart rate drop at the preset level.
• D)abnormal, because the demand pacemaker is not effectively pacing both the atria and ventricle.

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Definitions:

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