During transcutaneous pacing, which finding confirms capture?

During transcutaneous pacing, which finding confirms capture?

• 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)

During transcutaneous pacing, the goal is for the electrical impulse to produce a real heartbeat. The clearest proof of this electrical-to-mechanical response is a palpable pulse with each pacing impulse, showing that the ventricles are actually contracting and propelling blood. While you may also see a paced QRS on the monitor after a pacing spike, the presence of a pulse confirms that the impulse is producing a hemodynamic effect. A spike with a QRS can indicate electrical capture, but it doesn’t guarantee a tangible circulatory effect, and other signs like chest twitching can be unreliable or misleading. If no pulse is felt, you’d reassess and adjust pacing output to achieve capture.

During transcutaneous pacing, the goal is for the electrical impulse to produce a real heartbeat. The clearest proof of this electrical-to-mechanical response is a palpable pulse with each pacing impulse, showing that the ventricles are actually contracting and propelling blood. While you may also see a paced QRS on the monitor after a pacing spike, the presence of a pulse confirms that the impulse is producing a hemodynamic effect. A spike with a QRS can indicate electrical capture, but it doesn’t guarantee a tangible circulatory effect, and other signs like chest twitching can be unreliable or misleading. If no pulse is felt, you’d reassess and adjust pacing output to achieve capture.