Why is an AED needed?

Why is an AED needed?

• A. To analyze the heart rhythm and provide a shock
• B. To maintain circulation by continuous chest compressions
• C. To restart breathing by delivering oxygen
• D. To seal the chest with pads

Answer: (A)

An AED is needed because in sudden cardiac arrest the heart’s electrical system often goes out of rhythm, making the heart unable to pump effectively. The device quickly analyzes the heart rhythm and, if it detects a shockable rhythm, delivers a controlled electric shock to reset the electrical activity and try to restore a pumping rhythm. This defibrillation step is the crucial action that can restore a perfusing heartbeat. CPR with chest compressions keeps blood flowing and supports circulation, but it doesn’t fix the heart’s electrical problem. Delivering breaths helps with oxygen, but again, it doesn’t reset the rhythm. The pads on the chest are there to allow the device to analyze the rhythm and deliver a shock when indicated, not to seal the chest.

An AED is needed because in sudden cardiac arrest the heart’s electrical system often goes out of rhythm, making the heart unable to pump effectively. The device quickly analyzes the heart rhythm and, if it detects a shockable rhythm, delivers a controlled electric shock to reset the electrical activity and try to restore a pumping rhythm. This defibrillation step is the crucial action that can restore a perfusing heartbeat.

CPR with chest compressions keeps blood flowing and supports circulation, but it doesn’t fix the heart’s electrical problem. Delivering breaths helps with oxygen, but again, it doesn’t reset the rhythm. The pads on the chest are there to allow the device to analyze the rhythm and deliver a shock when indicated, not to seal the chest.