What is the purpose of using an AED?

The purpose of using an AED (Automated External Defibrillator) is to restore a normal heart rhythm. When a person experiences a sudden cardiac arrest, their heart may go into a chaotic rhythm known as ventricular fibrillation, which prevents it from pumping blood effectively. An AED delivers an electric shock to the heart, which can interrupt this erratic rhythm and allow the heart to reestablish a normal rhythm. This is crucial in saving a person's life, as timely defibrillation can significantly improve survival rates.

In contrast, measuring blood pressure, diagnosing heart conditions, or providing oxygen are functions associated with other medical devices or procedures, rather than the primary function of an AED. The AED focuses specifically on cardiac rhythm disturbances and acts as a critical tool in emergency situations where immediate intervention is necessary.