What device detects life-threatening cardiac dysrhythmias and delivers electrical shocks?

The device that detects life-threatening cardiac dysrhythmias and delivers electrical shocks to restore a normal heart rhythm is known as an Automated External Defibrillator (AED). AEDs are designed to analyze the heart’s rhythm and determine if a shock is necessary. When it identifies a shockable rhythm, it delivers a defibrillation shock to try to re-establish a normal heartbeat.

AEDs are user-friendly, often equipped with voice prompts and visual indicators to guide the operator through the steps of the process, making them accessible for use by laypersons and first responders alike in emergency situations. This device plays a critical role in the chain of survival for individuals experiencing sudden cardiac arrest.

In contrast, while a defibrillator (the term can generally refer to both manual and automated devices) is also capable of delivering shocks, AED specifically refers to the automated version meant for public use and is distinguished in terminology. ECGs, or electrocardiograms, are used to monitor and record heart activity but do not have the capability to deliver shocks. Moreover, CPR devices aid in the mechanical process of high-quality chest compressions during cardiopulmonary resuscitation but do not address dysrhythmias directly nor provide electrical shocks.