Which finding confirms that adequate transcutaneous pacing is being delivered?

Which finding confirms that adequate transcutaneous pacing is being delivered?

• A. A pulse is palpable with each impulse
• B. A dot is superimposed over each QRS complex
• C. There is a spike followed by a wide, bizarre QRS
• D. The patient's chest twitched with each impulse

Answer: (A)

When transcutaneous pacing is delivered, the goal is to make the heart respond with a real contraction, not just produce an electrical signal. The clearest proof of adequate pacing is a palpable pulse that occurs with each paced impulse, showing that the electrical stimulus is translating into a mechanical contraction and likely some blood flow. Other signs—like a pacing spike with a QRS complex on the monitor, or a twitch of the chest muscles—can accompany pacing but don’t by themselves prove that the heart is actually pumping effectively. A pulse with every impulse confirms both electrical capture and meaningful mechanical capture, which is why it’s the best confirmation of adequate transcutaneous pacing.

When transcutaneous pacing is delivered, the goal is to make the heart respond with a real contraction, not just produce an electrical signal. The clearest proof of adequate pacing is a palpable pulse that occurs with each paced impulse, showing that the electrical stimulus is translating into a mechanical contraction and likely some blood flow. Other signs—like a pacing spike with a QRS complex on the monitor, or a twitch of the chest muscles—can accompany pacing but don’t by themselves prove that the heart is actually pumping effectively. A pulse with every impulse confirms both electrical capture and meaningful mechanical capture, which is why it’s the best confirmation of adequate transcutaneous pacing.