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📌Introduction:

You can ask questions here that you have encountered in learning CPR and AED theory or in practical exercises.

📌Examples:

"The position of the hand during CPR compressions is always wrong, what are the techniques to correct it?"

"When AED analyses the heart rhythm, will someone walking next to me affect the results?"

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📌Introduction:

If you have experience in CPR or AED operation (including simulation drills and real scenarios), you can describe here the difficulties you encountered during the process, the measures you took to cope with them, and the insights you gained from them.

📌Example:

In a CPR simulation exercise organized by the school, the rhythm of my first compressions was particularly fast, and I was able to adjust it later by reciting the mnemonic, so you can also try this method.

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📌Introduction:

I hope you can summarise in this section the precautions you have learned in your studies and practice.

📌Example：

"Make sure the patient's chest is dry before using the AED, or the fit of the electrode pads and the shock effect may be affected."

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📌Introduction:

You can share stories about CPR and AED that they have heard or experienced.

📌Example:

I heard that an old man in the next community suffered a cardiac arrest. Fortunately, someone next to him had learnt CPR and was able to save him in time, which made me realize the importance of having first aid skills.

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We need to call for Help, notifying emergency services. Then we can perform CPR (**if trained). Then follow prompts to use AED, ensure no one is touching the person during analysis, and resume CPR after shock.

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Early activation: Activate emergency response systems (such as calling emergency services or alerting nearby individuals) as soon as possible to ensure that help arrives swiftly.

As in Scratch, there are always sound to remind us to call "911"

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When performing CPR, push hard and fast on the chest at least 2 inches, 100 - 120 times per minute. Use an AED as soon as available: follow its voice prompts to attach pads and deliver shocks.

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Check Responsiveness

Call for Help: Call emergency services.

Check Breathing: If not breathing, start CPR.

CPR: chest compressions and rescue breaths.

Use AED: Turn it on, attach pads, follow prompts. Deliver shock if advised.

Continue CPR: Resume after shock until help arrives.

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CPR steps:

1. Make sure the surroundings are safe.

2. Shake the patient's shoulder to ask for responses.

3. Shout for others to help.

4. Clear the patient's airway.

5. Listen to and observe the patient's breath for 10 seconds.

6. Callthe ambulance

7. Press chest around 2 times every second, chest down 5 cm deep

8. 2 rescue breaths after every 30 compressions (if trained before)

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when performing CPR，In compressions step：

Rate: 100–120 compressions per minute.

Depth: At least 2 inches (5 cm) for adults; ⅓ of the chest depth for children/infants.

Technique: Push hard and fast, allowing full chest recoil between compressions.

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Through study, I deeply realize the importance of mastering these skills. In an emergency, correct operation can not only save lives, but also reduce injuries. For example, the recommended chest compression frequency is 100-120 times per minute. During the CPR process, the interruption time should be as short as possible, and the maximum allowable time is 10 seconds. In the process, you should also avoid wrong AED operation: do not use AED directly underwater, because water may conduct electricity, increasing the danger. When analyzing the heart rhythm, the pressure should not be stopped unless the AED indicates to stop.

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How to use AED?

Turn on the AED and follow its voice prompts. Place pads on the chest as shown on the device. Ensure no one touches the patient during analysis or shock. Press the shock button if advised. Start CPR immediately after, and repeat until help arrives or signs of life appear.

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CPR Steps

1. Check Responsiveness

Tap & shout, "Are you okay?"

2. Call for Help

Yell for assistance or call 911 (or local emergency number).

Get an AED if available.

3. Start Chest Compressions

Push hard & fast (100–120/min) on the center of the chest.

Depth: 2 inches (5 cm) for adults.

4. Rescue Breaths (If Trained)

After 30 compressions, give 2 breaths (tilt head, pinch nose).

5. Use AED (If Available)

Follow voice prompts—shock if advised.

6. Continue CPR

Repeat until help arrives or person wakes up.