Passed out; Light-headedness - fainting; Syncope; Vasovagal episode

If you have a history of fainting and have been seen by a medical professional, follow your doctor's instructions for how to prevent fainting episodes. For example, if you know the situations that cause you to faint, avoid or change them. Avoid sudden changes in posture. Get up from a lying or seated position slowly. If having blood drawn makes you faint, tell your health care provider before having a blood test and make sure that you are lying down when the test is done.

You can take immediate treatment steps when someone has fainted:

• Check the person's airway and breathing. If necessary, call 911 and begin rescue breathing and CPR.
• Loosen tight clothing around the neck.
• Raise the person's feet above the level of the heart (about 12 inches).
• If vomiting has occurred, turn the person onto their side to prevent choking.
• Keep the person lying down for at least 10 - 15 minutes, preferably in a cool and quiet space. If this is not possible, sit the person forward and place their head between their knees.

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Review Date: 05/03/2009
Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)