What device is used to deliver an electric shock to restore a normal heart rhythm?

• A. Pacemaker
• B. Defibrillator
• C. Cardioversion Monitor
• D. AED (Automated External Defibrillator)

Answer: (B)

A defibrillator is a medical device designed specifically to deliver a controlled electric shock to the heart in order to restore a normal rhythm following life-threatening arrhythmias, such as ventricular fibrillation or pulseless ventricular tachycardia. The shock from the defibrillator interrupts the chaotic electrical activity in the heart, allowing it to reset and potentially resume a normal rhythm.

The concept of using an electric shock to restore normal heart function is crucial in emergency situations where time is of the essence. Defibrillators can be found in various forms, including manual defibrillators used by trained medical personnel and automated external defibrillators (AEDs) that guide non-professionals through the process.

While a pacemaker is a device used to regulate and maintain a normal heart rate in individuals with certain types of arrhythmias over time, it does not provide the immediate high-energy shock characteristic of defibrillation. Cardioversion is a similar procedure but is typically used in a controlled setting to treat specific arrhythmias using lower energy levels, and it often requires sedation. An AED, while a specific type of defibrillator that is designed for public use and is automated for ease of use, falls under the broader category of defibr