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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medically reviewed by WellAlly Editorial TeamLast reviewed October 19, 2026Editorial policy
First Aid21 min read

First Aid for Fainting (Syncope)

Published: October 19, 2026Updated: October 19, 2026

Fainting occurs when there is a brief, temporary reduction in blood flow to the brain, leading to a sudden loss of consciousness. Most episodes are harmless and resolve quickly once the person is positioned flat on their back. Knowing how to safely assist someone who has fainted can prevent secondary injuries and ensure serious underlying conditions are identified quickly.

Quick Summary

Lay the person flat on their back, elevate their legs roughly 12 inches to restore cerebral blood flow, loosen restrictive clothing, and seek emergency care if they do not regain consciousness within one minute.

Important Medical Disclaimer

This guide is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult with qualified healthcare providers for medical concerns.

Step-by-Step Guide

1

Assess responsiveness and breathing

Check if the person responds to verbal cues or gentle tapping on the shoulders. Look, listen, and feel for normal breathing. If the person is not breathing or is only gasping, immediately call emergency services and begin cardiopulmonary resuscitation (CPR).

Important: Do not assume abnormal gasping (agonal breathing) is normal respiration; begin chest compressions immediately if normal breathing is absent.

2

Position the person safely

Gently guide the person flat onto their back on a firm, level surface. If they were sitting and felt faint, have them lean forward with their head between their knees or guide them to the floor before they collapse. If vomiting occurs, immediately roll them onto their side into the recovery position to maintain an open airway.

3

Elevate the legs

Raise the person's feet and lower legs approximately 12 inches (30 cm) above heart level using a pillow, jacket, or chair. This promotes venous blood return to the heart and rapidly restores arterial perfusion to the brain. Keep them lying down for at least 10 to 15 minutes after consciousness returns.

Important: Do not elevate the legs if you suspect head, neck, back, or pelvic trauma, or if movement causes significant pain.

4

Loosen tight clothing and ensure airflow

Unbutton collars, loosen neckties, unfasten tight belts, and remove restrictive outerwear to assist unrestricted breathing and circulation. Encourage bystanders to back away to allow adequate ventilation and cool air around the patient.

5

Check for secondary injuries

Perform a rapid visual scan for cuts, bruises, or signs of head trauma that may have occurred during the collapse. Ask the person, once alert, if they hit their head or feel pain anywhere in their body. Manage any bleeding with direct pressure using a clean cloth or sterile bandage.

6

Support a gradual recovery

Keep the individual recumbent until they feel fully oriented and their color returns to normal. Allow them to sit up slowly for several minutes before attempting to stand. If lightheadedness returns at any point during repositioning, have them lie back down immediately.

Important: Do not give the person food, water, or medication until they are completely conscious, alert, and able to swallow normally.

7

Recognize when emergency care is required

Call emergency medical services immediately if the person remains unresponsive for longer than one minute, has chest pain, shortness of breath, palpitations, or a seizure. Medical evaluation is also critical if fainting occurred during exercise, without any warning, or in someone with known heart disease or pregnancy.

Important: Unexplained syncope during physical exertion or accompanied by chest pain should always be treated as a cardiac emergency.

Frequently Asked Questions

What should I do if I feel like I am about to faint?
Lie down flat immediately and elevate your feet if possible. If you cannot lie down, sit down, place your head between your knees, tense your leg muscles, and take slow, deep breaths until the lightheadedness passes.
Should I slap someone or use smelling salts to wake them up?
No. Slapping, shaking, splashing cold water, or using smelling salts is unnecessary and potentially harmful. Simply positioning the person flat on their back is usually sufficient to restore blood flow and consciousness within seconds.
How long does a typical faint last?
A benign syncopal episode typically lasts between 20 seconds and one minute. Unconsciousness lasting longer than one to two minutes requires immediate emergency medical evaluation.
What is the difference between a faint and a seizure?
Fainting involves a rapid recovery of mental clarity shortly after lying flat, often preceded by pale skin, sweating, or lightheadedness. Seizures often involve sustained rhythmic jerking, eye rolling, loss of bowel or bladder control, and prolonged confusion or drowsiness (postictal state) afterward.
  1. 1
    Mayo ClinicSource
  2. 2
    NHSSource
  3. 3
    MedlinePlus (NIH)Source

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed October 19, 2026. · Read our editorial policy