Loss of consciousness: what to do when someone faints

You witness a heart-stopping scene: someone collapses in front of you. A few seconds are enough to go from calm to total panic—especially if you don't know what to do. Yet, first aid for loss of consciousness relies on simple actions, accessible to everyone. This practical guide explains how to quickly assess the situation, protect the person, and decide if you need to call 911. With the right reflexes, you can make a real difference.

Fainting or feeling unwell: how to tell the difference?

Fainting—also known as syncope—is a brief loss of consciousness caused by a sudden drop in blood flow to the brain. The most common cause is vasovagal syncope: the nervous system overreacts to pain, strong emotion, heat, or fatigue, which causes blood pressure to drop. The person usually regains consciousness within a few seconds to one or two minutes.

Simple malaise, on the other hand, is a feeling of weakness or dizziness without complete loss of consciousness. In both cases, the initial actions are very similar.

The first few seconds: quickly assess the situation

As soon as someone collapses or stops responding, act methodically:

1. Call their name and gently tap their shoulders. Do they respond? Do they open their eyes?
2. If they don't respond, check their breathing: observe the movement of their chest, listen, and feel for air coming out of their mouth for five to ten seconds.
3. If they are unconscious but breathing: place them in the Recovery Position.
4. If they are unconscious and not breathing: call 911 immediately and begin CPR.

Never let someone remain standing or sitting during syncope. There is a real risk of falling and head trauma.

Want to be better prepared for this type of situation? Explore SuperMedic's first aid training courses to acquire these reflexes in a practical context.

The Recovery Position: why and how

The Recovery Position is the key action for an unconscious person who is breathing. It prevents the airway from being obstructed by the tongue or vomit.

1. Kneel beside the person, who is lying on their back.
2. Place the arm closest to you perpendicular to the body, elbow bent, palm facing up.
3. Bring the other arm across their chest; place the back of their hand against their cheek (side closest to you).
4. With your other hand, bend the knee furthest from you upwards.
5. While holding the hand against the cheek, gently pull on the knee to roll the person towards you, onto their side.
6. Adjust the head so the chin is slightly lifted: this keeps the airway open.
7. Continuously monitor breathing until help arrives.

Stay with them. Never leave them alone, unless you need to go get help.

When the person regains consciousness: the right actions

Most vasovagal syncopes resolve on their own in less than two minutes. When the person comes to:

• Lay them on their back and elevate their legs 30 to 45 degrees. This promotes blood return to the heart and brain.
• Loosen any tight clothing around the neck and waist, such as a belt or tie.
• Speak to them calmly to reassure them and ask how they feel.
• Do not give them anything to drink or eat until they are fully awake and oriented—risk of choking.
• Wait until they feel stable before helping them to sit up, then to stand up slowly.

Even if the person says they are fine, recommend that they see a doctor to identify the cause of the fainting, especially if it's their first time.

When to call 911 without hesitation

Call 911 immediately if:

• The loss of consciousness lasts more than two minutes.
• The person does not regain consciousness despite your initial actions.
• They have fallen and sustained a head injury.
• They experienced chest pain, shortness of breath, or palpitations before fainting.
• They are having seizures.
• They are no longer breathing: in this case, start CPR without delay.

When in doubt, call. 911 dispatchers can guide you in real-time.

Having a well-equipped first aid kit readily available at your workplace or at home is also a way to prepare for unexpected situations with more peace of mind.

Before it happens: if you feel like you're going to faint

The body often gives warning signs: dizziness, blurred vision, ringing in the ears, cold sweats, sudden nausea. If you experience these symptoms:

• Sit or lie down immediately, wherever you are. Do not remain standing.
• Elevate your legs if possible (30 to 45 degrees).
• Loosen your clothing around your neck and waist.
• Breathe slowly and calmly.
• Alert someone nearby to your discomfort.

Key takeaways

When faced with loss of consciousness, the right reflexes are summarized as follows: check for response and breathing, place in the Recovery Position if the person is breathing, call 911 if they are not breathing or if the situation worsens. Vasovagal syncope is common and generally not seriously dangerous—but it always warrants attention and follow-up.

These actions can be learned and become automatic with practice. Discover the first aid training courses offered by SuperMedic to practice in a supervised setting. And to ensure your workplace is ready to react, also explore our safety equipment.

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Disclaimer: This article is provided for educational purposes only. It is not a substitute for official first aid training, professional medical advice, or diagnosis. In case of emergency, call 911.

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Sources:

• Canadian Red Cross — First Aid & CPR: redcross.ca
• Government of Canada — Health Canada: canada.ca
• Mayo Clinic — Vasovagal syncope: mayoclinic.org