What Should I Do if Someone Stops Breathing?

When someone stops breathing, it is a medical emergency that requires immediate action. Quick response can mean the difference between life and death, as the brain and vital organs can only survive for a few minutes without oxygen. Knowing what to do in such a situation helps ensure the best possible outcome until professional medical help arrives.

Introduction to Emergency Care

Emergency care is the immediate response to life-threatening situations, such as cardiac arrest, severe allergic reactions, or sudden difficulty breathing. First aid for someone who is unresponsive and not breathing requires immediate action, including checking for breathing, calling emergency services, and starting CPR if necessary. When the person's airway is blocked or they experience breathing difficulties, every second counts. Acting quickly by providing cardiopulmonary resuscitation (CPR) or rescue breaths can help maintain blood flow and oxygen delivery to vital organs until professional help arrives. Recognizing the signs of a medical emergency—such as lightheadedness, pain, vomiting, or chest discomfort—ensures you can respond effectively and potentially save a life.

Recognizing the Signs of Breathing Stoppage

Before taking action, it is important to determine whether the person has truly stopped breathing. Look for:

• No chest movement or visible rise and fall of the chest

• Lack of air from the nose or mouth

• Gasps or irregular, shallow breaths (sometimes called agonal breathing)

• Unresponsiveness or inability to speak

Difficult breathing can be a sign of a serious problem, especially if it is sudden or severe. While feeling slightly winded after exercise is normal, any unexplained or persistent shortness of breath may indicate a more serious issue causing breathing difficulty.

If you are unsure, always treat the situation as an emergency. It is important to distinguish between normal post-activity breathlessness (feeling slightly winded) and signs of a medical emergency, such as difficult breathing or other symptoms causing breathing difficulty.

Calling for Help

The first step when someone is not breathing is to call for emergency services immediately—dial the local emergency number for urgent medical assistance. If other people are present, ask someone to make the call while you begin life-saving measures. If you are alone, call for help first before starting care, unless the victim is a child, in which case you should provide some care before leaving to call.

Starting CPR and Chest Compressions in Cardiac Arrest

Cardiopulmonary resuscitation (CPR) is the immediate response when a person has no effective breathing. If you find someone unresponsive and not breathing, start CPR right away. CPR combines chest compressions and rescue breaths to keep oxygenated blood moving until professional help arrives.

• Place the person on a firm, flat surface.

• Start chest compressions by pushing hard and fast in the center of the chest, at a steady rhythm.

• If trained, before giving rescue breaths, check the person's mouth for obstructions, then tilt their head back to open the person’s airway, lift the chin, and give breaths after every set of compressions.

• If untrained, perform hands-only CPR by continuing compressions without pauses.

If the person has been rescued from drowning, give two rescue breaths before starting chest compressions.

The goal is to maintain circulation and oxygen delivery until advanced care is available.

Using an Automated External Defibrillator (AED)

If an AED is available, it should be used as soon as possible. AEDs are designed to be simple and guide the user with step-by-step instructions. They can detect abnormal heart rhythms and deliver a shock if needed to restore normal heart function. Using an AED quickly can dramatically increase survival rates when paired with CPR.

First Aid Procedures

When faced with medical emergencies involving breathing difficulties, knowing the right first aid procedures can make all the difference. If you notice someone experiencing sudden lightheadedness, pain, vomiting, chest discomfort, or is breathing rapidly and unable to catch their breath, these may be signs of a life-threatening condition such as cardiac arrest. Immediate action is crucial—call your local emergency number and be prepared to begin chest compressions to maintain blood flow to the person’s vital organs.

If the person is having difficulty speaking, persistent coughing, or you hear abnormal breath sounds, this could indicate a blockage in the person’s airway or even pediatric upper airway obstruction. In such cases, act quickly to clear the airway if safe to do so, and seek emergency medical help right away.

For severe allergic reactions, such as anaphylaxis, administer epinephrine if available and call for emergency medical assistance immediately. Eliminating household allergy triggers can help prevent these emergencies, but if symptoms like swelling, hives, or breathing difficulty occur, prompt first aid and emergency medical treatment are essential.

In the event of sudden medical emergencies like a heart attack or unexpected breathing problems, start CPR if the person becomes unresponsive and stops breathing. Begin chest compressions and, if trained, provide rescue breaths to increase blood flow and oxygen delivery to the lungs and other vital organs. For someone with a pre-existing breathing condition, such as asthma, ensure their asthma inhaler is accessible and assist them as needed. If symptoms worsen or do not improve, seek emergency medical help without delay.

Certain situations require special first aid measures. For example, if someone has a sucking chest wound, cover it with a sterile bandage to prevent air from entering the person’s chest cavity, but allow one side of the bandage to remain unsealed so trapped air can escape. In cases of high altitude pulmonary edema, help the person descend to a lower altitude and seek emergency medical help as soon as possible.

If the person is exposed to chemicals or develops pericardial effusion, which can cause breathing difficulties, move them to fresh air and call for emergency medical treatment. For respiratory medicine emergencies, such as respiratory syncytial virus, chronic bronchitis, or acute bronchitis, provide basic first aid by helping the person sit upright, encouraging slow, deep breaths, and seeking medical help if symptoms worsen.

To prevent complications like blood clots, encourage regular movement and avoid prolonged periods of sitting or standing. If the person has a medical alert tag, inform emergency responders of any pre-existing conditions or prescribed medicine they may need.

If you encounter someone with difficult breathing, help them sit up and lean forward to make breathing easier. Remove any obstructions, such as a plastic bag, from their head to allow trapped air to escape. If there is fluid buildup in the lungs, as with pulmonary edema, support their breathing and seek emergency medical help immediately.

Encourage a healthy lifestyle to reduce the risk of future breathing difficulties—regular exercise, a balanced diet, and maintaining a healthy weight can all help. Avoid exposure to air pollution, tobacco smoke, and strong chemicals, which can trigger or worsen breathing problems.

In all cases, stay calm, follow proper first aid procedures, and prioritize the person’s safety and well-being. Continue to provide support and monitor their condition until emergency medical help arrives. Your quick and informed response can help maintain blood flow, prevent further complications, and give the person the best possible chance of recovery.

Special Considerations

Certain situations require special attention when providing emergency care. For example, pediatric upper airway obstruction can present with abnormal breath sounds, persistent coughing, or visible difficulty breathing. In these cases, it’s crucial to seek emergency medical help immediately, as children’s airways can become blocked quickly. If someone has a pre-existing breathing condition like asthma, ensure their asthma inhaler is accessible and know how to assist them in using it. At high altitudes, be aware of high altitude pulmonary edema, which can cause sudden breathing problems and requires prompt medical help. Always tailor your response to the person’s age, person's condition, and specific needs to provide the most effective emergency care.

While Waiting for Help

Continue CPR without stopping until emergency responders arrive or the person begins breathing normally on their own. Rotate with another person if possible, as CPR is physically demanding. Stay calm, keep checking the individual’s airway and chest. Monitor the person’s condition closely and be ready to adjust your actions as needed. Providing emergency treatment, such as CPR, is critical to sustain vital functions until advanced help arrives. Be prepared to give rescuers a clear account of what happened when they arrive.

After CPR

Once you have performed CPR, it’s important to continue supporting the person until emergency medical help arrives. Keep monitoring their breathing and pulse, and be ready to provide rescue breaths or resume chest compressions if necessary. If the person regains consciousness, help them stay calm and comfortable, and avoid unnecessary movement. Your ongoing care can make a significant difference in their recovery while waiting for medical help.

Preparation is Key

Being prepared for medical emergencies can save lives. Learning basic first aid skills, including CPR and how to use an automated external defibrillator (AED), equips you to respond confidently in a crisis. Keep a well-stocked first aid kit in your home and workplace, and familiarize yourself with its contents. Preventing emergencies is just as important—eliminate household allergy triggers and take steps to avoid forming blood clots, such as staying active and following your doctor’s advice. Preparation ensures you’re ready to act when every second matters.

Staying Safe

Your safety is just as important as the person you’re helping. Always use protective gloves when treating wounds and avoid direct contact with bodily fluids. If you’re unsure how to provide care, seek medical help immediately rather than risking harm. Recognize the signs of breathing difficulty, such as trouble speaking or persistent coughing, and call for emergency medical help right away. Knowing how to perform CPR and use an AED can increase blood flow and oxygen to vital organs, improving the chances of survival in medical emergencies. By staying safe and prepared, you can make a life-saving difference.

Conclusion

If someone stops breathing, the most important steps are to call for emergency services, begin CPR immediately, and use an AED if available. Acting quickly provides the best chance of survival and can make a critical difference in the outcome. Even if you are not formally trained, attempting CPR is far better than doing nothing, as your actions can sustain life until professional care takes over.

FAQs

What is the first thing to do if someone is not breathing?

Call for emergency help immediately and begin CPR to maintain circulation and oxygen delivery.

Should I give breaths if I don’t know CPR?

If untrained, perform hands-only CPR with chest compressions until help arrives. This is still highly effective.

How long should I continue CPR if someone is not breathing?

Continue until professional help arrives, an AED is used, or the person starts breathing normally again.

Can I hurt someone by doing CPR if they are not actually in cardiac arrest?

You may cause minor injuries like broken ribs, but CPR in an emergency is far more likely to save a life than cause harm.

Why is fast action so important when someone stops breathing?

Without oxygen, brain cells begin to die within minutes. Quick action keeps blood and oxygen moving, greatly improving chances of survival.