What is the initial energy dose for cardioversion in SVT and atrial flutter?

Prepare for the QIC Acadian Ambulance Test with our comprehensive quiz. Explore study tools like flashcards and multiple choice questions, featuring each question’s hints and explanations, to ace your exam!

Multiple Choice

What is the initial energy dose for cardioversion in SVT and atrial flutter?

Explanation:
In synchronized cardioversion for SVT and atrial flutter, the goal is to reset the heart’s rhythm by delivering a timed shock that coincides with the R wave. Modern biphasic defibrillators use a starting energy around 125 joules for this scenario. This level is strong enough to interrupt the reentry circuit without being unnecessarily high. If the rhythm persists, follow protocol to escalate to higher energies (for example, 150–200 J or more, depending on the device and guidelines). Lower energies like 50 J or 100 J may fail to terminate the tachycardia, and 360 J is used for unsynchronized defibrillation in pulseless arrest, not synchronized cardioversion.

In synchronized cardioversion for SVT and atrial flutter, the goal is to reset the heart’s rhythm by delivering a timed shock that coincides with the R wave. Modern biphasic defibrillators use a starting energy around 125 joules for this scenario. This level is strong enough to interrupt the reentry circuit without being unnecessarily high. If the rhythm persists, follow protocol to escalate to higher energies (for example, 150–200 J or more, depending on the device and guidelines). Lower energies like 50 J or 100 J may fail to terminate the tachycardia, and 360 J is used for unsynchronized defibrillation in pulseless arrest, not synchronized cardioversion.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy