What is the primary purpose of an automated external defibrillator (AED)?

The primary purpose of an automated external defibrillator (AED) is to analyze heart rhythms and deliver a shock if necessary. AEDs are specifically designed to treat sudden cardiac arrest by identifying life-threatening arrhythmias, such as ventricular fibrillation or pulseless ventricular tachycardia. When an AED is applied to a patient, it assesses the electrical activity of the heart and determines whether a shock is required to restore a normal rhythm.

The capability of an AED to automatically analyze heart rhythms and administer a shock is critical because timely defibrillation can significantly increase the chances of survival in a cardiac emergency. This technology is user-friendly, allowing even non-medical personnel to respond appropriately during a crisis.

In contrast, providing oxygen, monitoring blood pressure, and assisting in patient transportation do not accurately reflect the primary function of an AED, which is focused on cardiac arrhythmias and the restoration of normal heart rhythm through defibrillation.