CPR and Choking

What this lesson teaches

CPR and choking lessons focus on immediate action. The words are simple, but the timing matters. Students should know the difference between a person who is breathing, not breathing normally, choking, unconscious, or pulseless.

This page is for study review and vocabulary. Real CPR training should be learned through a certified hands-on course.

• Explain the difference between choking and cardiac arrest.
• Understand the purpose of chest compressions and an AED.
• Recognize key first-aid terms such as airway obstruction, rescue breaths, and responsiveness.
• Remember that real emergency care requires calling local emergency services.

Core lesson

CPR stands for cardiopulmonary resuscitation. It is used when a person is unresponsive and not breathing normally. The goal of chest compressions is to keep blood moving to the brain and heart until advanced help arrives.

An AED, or automated external defibrillator, checks the heart rhythm and may deliver a shock if the rhythm is shockable. The AED does not shock every person; it analyzes the rhythm and gives instructions.

Choking is an airway obstruction. If a person can cough forcefully, air is still moving. If they cannot speak, cough effectively, or breathe, the obstruction is severe. Choking can quickly become unconsciousness if the airway is not cleared.

In test questions, the first priority is usually recognition and activation: check responsiveness, call emergency services or direct someone to call, get an AED, and begin appropriate care based on breathing and pulse status within your training level.

Key terms to know

CPR

Emergency actions used to support circulation and breathing when someone is unresponsive and not breathing normally.

Chest compressions

Pressing on the chest to circulate blood during cardiac arrest.

AED

Automated external defibrillator. A device that analyzes heart rhythm and can deliver a shock if needed.

Airway obstruction

A blockage that prevents normal airflow into the lungs.

Choking

A type of airway obstruction caused by food or another object blocking airflow.

Rescue breaths

Breaths given to provide oxygen when a person is not breathing adequately, used according to training and guidelines.

Agonal breathing

Abnormal gasping that can occur in cardiac arrest. It is not normal breathing.

Responsiveness

Whether a person reacts to voice, touch, or pain.

Pulse check

A brief assessment for circulation, performed according to training level and local protocols.

Recovery position

A side-lying position used for some unconscious breathing patients to help maintain airway drainage.

How to think through questions

• First decide: responsive or unresponsive? Breathing normally or not? Choking or cardiac arrest?
• A coughing choking patient is different from a silent choking patient. Effective coughing means some air is moving. Silent, unable-to-breathe choking is severe.
• An AED is a priority because early defibrillation can save lives in certain cardiac rhythms.

Common mistakes

• Thinking gasping is normal breathing. Agonal breathing is a danger sign.
• Delaying emergency activation while trying many other steps first.
• Putting fingers blindly into a choking person’s mouth.
• Thinking an AED shocks everyone. It only shocks when the rhythm analysis indicates it.

Memory hooks

• Unresponsive plus not breathing normally means act fast.
• AED means analyze, advise, deliver if needed.
• If they can cough, encourage coughing; if they cannot breathe or speak, it is severe.

Quick review

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