how does an automated external defibrillator (AED) work?

it sends an electric shock to the heart
it stimulates the heartbeat through the chest compressions
it alters irregular heartbeats with vibrations
it takes the vitals of a person for the paramedics

3 answers

An automated external defibrillator (AED) is a portable device that is used to treat sudden cardiac arrest. It works by analyzing the heart rhythm of a person in cardiac arrest and delivering an electric shock if needed to restore normal heart rhythm.

Here is how an AED works:

1. Turn on the AED: Most AEDs have an on/off switch that needs to be turned on to start the device.

2. Attach the electrode pads: The AED comes with adhesive electrode pads that have connectors to attach to the AED. These pads are usually placed on the bare chest of the person in cardiac arrest. One pad is placed on the upper right side of the chest while the other is placed on the lower left side of the chest.

3. Analyze the heart rhythm: The AED will start analyzing the heart rhythm of the person through the attached electrode pads. It detects whether the person is in a shockable rhythm, such as ventricular fibrillation or ventricular tachycardia, which can be treated with an electric shock. These abnormal rhythms prevent the heart from pumping blood effectively.

4. Deliver a shock if needed: If the AED detects a shockable rhythm, it will either automatically deliver a shock or prompt the user to press a button to deliver the shock. The shock itself momentarily stops the heart's electrical activity, allowing the natural pacemaker of the heart to resume regular rhythm and regularize the heartbeat.

5. Perform CPR: After delivering the shock, the AED will prompt the user to resume CPR (cardiopulmonary resuscitation) by providing chest compressions. CPR helps to circulate oxygenated blood throughout the body until professional medical help arrives.

It is important to note that AEDs do not measure vital signs such as blood pressure, heart rate, or oxygen saturation. Their main purpose is to assess and treat irregular heart rhythms that can be seen in sudden cardiac arrest.
how does an automated external defibrillator (AED) work?
a. it sends an electric shock to the heart
b. it stimulates the heartbeat through the chest compressions
c. it alters irregular heartbeats with vibrations
d. it takes the vitals of a person for the paramedics
a. it sends an electric shock to the heart