Final answer:
Most inappropriate shocks from AEDs are due to user error, and AEDs work by diagnosing and treating arrhythmias in cardiac emergencies.
Step-by-step explanation:
Research indicates that inappropriate shocks from an Automated External Defibrillator (AED) are most commonly caused by user error, including misunderstanding the device's instructions or the person's heart condition. AEDs are portable devices designed to diagnose and treat sudden cardiac arrest by delivering an electric shock to restore a regular heart rhythm. These devices auto-analyze the heart's rhythm and administer a shock with appropriate energy and waveform, and CPR is often recommended before their use. Operator error in using an AED can lead to unnecessary or improperly delivered shocks that may be harmful to the patient.