1. Introduction
An AED (Automated External Defibrillator) is a portable emergency device designed to save the lives of patients experiencing sudden cardiac arrest. It can automatically detect heart rhythms and deliver an electric shock if necessary to restore normal heart function. Anyone can use an AED without professional medical training.
2. Device Components
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Main unit
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Electrode pads (Adult/Child)
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Battery pack (replaceable)
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Screen/voice prompt system
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Power switch and buttons
3. Pre-Use Checklist
Before using an AED, always check:
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The AED power indicator light is normal (green/OK status)
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The battery has sufficient charge
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Electrode pads are within their expiration date, and the packaging is intact
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The device is stored in a dry, room-temperature, and easily accessible location
4. How to Use an AED: Step-by-Step Instructions (General Process)
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Turn on the AED – Open the device or lift the cover (some models power on automatically). Follow the voice prompts.
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Attach electrode pads – Keep the chest dry. For adults, place one pad on the upper right chest and the other on the lower left chest. For children, follow the device labeling.
Children: Use pediatric pads if available, or follow the device markings (chest-front/back or adult placement).
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Heart rhythm analysis – The AED will automatically analyze the heart rhythm. The device will prompt: “Do not touch the patient.”
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Defibrillation (if needed) – Press the shock button, ensuring no one is touching the patient.
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Continue CPR – Follow the prompts: push at a rate of 100–120 compressions per minute, with a depth of 5–6 cm.
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Cycle operation – Every 2 minutes, the AED will re-analyze the heart rhythm until professional help arrives or the patient recovers.
(See figure below: AED operation steps)
5. Replacing Electrode Pads and Batteries
Battery Replacement
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Typical lifespan: 2–5 years; the device will alert when the battery is low.
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Use compatible battery models (e.g., Philips M5070A, Zoll 8000-0807-01).
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Check battery status and consumables monthly.
Electrode Pad Replacement
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Check expiration date (usually 2–3 years).
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Replace pads if expired or are used.
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Ensure proper adhesion to the chest.
Important Battery Instructions:
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AED batteries are non-rechargeable.
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Once installed, do not waste battery power; put the device in standby immediately after installation.
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Do not power on the device during routine checks to conserve battery.
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Check status: observe the indicator light or screen displaying “OK” and record it.
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Used battery energy cannot be recovered; replace batteries when depleted.
6. Safety Precautions
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Do not use in water or wet environments.
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Ensure no one touches the patient during shock delivery.
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Use pediatric pads for children/infants.
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Record usage and replace consumables after each use.
7. Frequently Asked Questions (FAQs)
Q1: Can an AED deliver a shock for cardiac arrest (straight-line electrocardiogram)?
A: No, it is only effective for ventricular fibrillation/pulseless ventricular tachycardia.
Q2: What should I do if the AED battery is dead?
A: Check it beforehand. If it's dead, the AED will not function. It's recommended to have spare batteries.
Q3: Can I use an AED even if I don't know how to perform CPR?
A: Yes, AEDs have voice guidance, but they are more effective when combined with CPR.
If you need to purchase replacement batteries for your AED, you can find reliable products and advice at BatteryMall.com.
Want to learn more about AED use, best practices for first aid, and life-saving equipment? Please visit: BatteryMall.com/blogs/support.
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