I'll start with a quick overview while pulling detailed content from the medical library.

Defibrillators deliver a controlled electrical shock to the heart to terminate life-threatening arrhythmias (VF, pulseless VT) by depolarizing a critical mass of myocardium simultaneously, allowing the sinoatrial node to resume normal pacemaker activity. Key types include AEDs (automated, public use), manual external defibrillators (hospital), and implantable cardioverter-defibrillators (ICDs).

Now I'll run parallel searches across the library and web for comprehensive coverage.

Good finds. Now I'll read the most relevant textbook sections in parallel.

Excellent. Now reading the key detailed sections from Barash (energy/waveforms), Tintinalli (equipment), Rosen's (VF/VT), and Morgan & Mikhail (defibrillation).

Your credits are exhausted. You can purchase a top-up or subscribe to a plan to continue using Orris. If you're already subscribed, your daily credits will reset tomorrow.