In a defibrillator, what is the purpose of the paddles or pads?

• A. To monitor heart rate
• B. To deliver an electrical shock to restore normal heart rhythm
• C. To administer medication
• D. To extract blood samples

Answer: (B)

In a defibrillator, the paddles or pads serve the crucial function of delivering an electrical shock to the heart. This shock is intended to depolarize the heart muscle, effectively interrupting any abnormal electrical activity that may be causing life-threatening arrhythmias. By restoring a normal heart rhythm, the defibrillator can significantly increase the chances of survival in cases of cardiac arrest or severe arrhythmias such as ventricular fibrillation or pulseless ventricular tachycardia.

The design of the paddles or pads allows for the efficient transfer of the electrical energy directly to the heart, which is essential in clinical settings where rapid intervention is required to restore proper heart function.