A full recovery usually takes a few minutes. Medications that can cause your blood pressure to drop also increase your chance of fainting. These include certain medications used to treat:. This sensitivity can cause you to faint. There are several types of syncope. Three common types include:. Always get up slowly from a sitting or lying-down position. If you tend to feel faint at the sight of blood when getting your blood drawn or during other medical procedures, tell your doctor. They can take certain precautions to prevent you from fainting.
Feeling lightheaded and weak and having the sensation of spinning are warning signs of fainting. If you notice any of these signs, sit and put your head between your knees to help get blood to your brain. When someone near you faints, you can encourage blood flow to their head by raising their feet above the level of their heart. Loosen tight collars, belts, and other restrictive clothing. Keep the person lying down or sitting for at least 10 to 15 minutes.
A cool, quiet place is best. A cool drink of water may also help. Learn more about first aid tips for unconsciousness. This will also help blood get to the brain, though it's not as good as lying down.
When you feel better, move slowly into an upright seated position, then stand. Don't let yourself get dehydrated. Drink enough liquids throughout the day. Drink plenty of fluids before, during, and after exercise and in hot weather. Keep blood circulating.
If you have to stand or sit for a long time, take breaks often and move around. Regularly tense your leg muscles or cross your legs to help improve blood flow. Avoid overheated, cramped, or stuffy environments , whenever possible. When Should I Call the Doctor? Call the doctor or get medical care if you: hurt yourself when you fainted for example, if you banged your head really hard have chest pain, palpitations fast or irregular heartbeats , or shortness of breath had a seizure fainted during exercise or other physical activity have fainted more than once The doctor will ask a few questions, do an exam, and might order some tests, such as: an EKG a type of test for heart problems a blood sugar test a blood test to check for anemia How Can I Help Someone Who Faints?
Call if someone who has fainted: does not regain consciousness after a few minutes passed out while exercising is having chest pain, trouble breathing, or a seizure. Check they are breathing and that they have a pulse. If the fainting episode was brought on by heat, remove or loosen clothes, and try to cool the person down by wiping them with a wet cloth or fanning them. Assess the person for any potential injuries if they have fallen. In an emergency, always call triple zero for an ambulance if the person has not regained consciousness within a few seconds or recovered in a few minutes.
Hypotension and fainting Low blood pressure hypotension is a condition characterised by blood pressure that is lower than normal or usual for the person. Orthostatic hypotension Blood vessels respond to gravity by constricting tightening. Causes of orthostatic hypotension include: Nervous system diseases, such as neuropathy Prolonged bed rest Dehydration Irregular heartbeat heart arrhythmia Changes in blood pressure medication.
Where to get help Your doctor In an emergency, always call triple zero Fainting: first aid , Mayo Clinic. More information here. Low Blood Pressure , Medical Online. Give feedback about this page. Was this page helpful? Yes No. View all blood and blood vessels. Related information. From other websites Active First Aid. Please try again. Something went wrong on our side, please try again.
Show references Fainting. American College of Emergency Physicians. Accessed Oct. The Merck Manual Professional Edition. American Red Cross. See also Feeling faint? What to do. Mayo Clinic Press Check out these best-sellers and special offers on books and newsletters from Mayo Clinic. Reprint Permissions A single copy of these materials may be reprinted for noncommercial personal use only.
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