Conditions such as heart problems, anemia , low blood sugar , or postural orthostatic tachycardia syndrome POTS can cause fainting. During pregnancy, the body undergoes a lot of changes, including changes in the circulatory system. These may cause a woman to faint. And as the uterus grows, it can press on and partially block blood flow through large blood vessels, which can decrease blood supply to the brain.
If you've only fainted once, it was brief, and the reasons why are obvious like being in a hot, crowded setting , then there's usually no need to worry about it. But if you have a medical condition or are taking prescription medicines, it's a good idea to call your doctor. If you're with someone who has fainted, try to help the person lies down. Don't move someone who might be injured from falling that can make things worse. Instead, loosen any tight clothing — such as belts, collars, or ties.
Propping the person's feet and lower legs up on a backpack or jacket also can help blood flow to the brain. Someone who has fainted will usually recover quickly. Because it's normal to feel a bit weak after fainting, be sure the person stays lying down for a bit. Getting up too soon may bring on another fainting spell. Reviewed by: Mary L. Gavin, MD.
Larger text size Large text size Regular text size. What Is Fainting? In most cases, fainting can be treated and controlled. Often, diagnosing what is causing fainting is the most difficult part. If your fainting is not under control, you should talk to your doctor about whether it is safe for you to drive.
This article was contributed by: familydoctor. This information provides a general overview and may not apply to everyone.
Talk to your family doctor to find out if this information applies to you and to get more information on this subject. Your body depends on water to survive. Every cell, tissue, and organ in your body needs it to work…. You may hear conflicting reports from different sources. Visit The Symptom Checker. Read More. Food Poisoning. Acute Bronchitis. Eustachian Tube Dysfunction. Bursitis of the Hip. Abnormal Uterine Bleeding.
High Blood Pressure. Home Diseases and Conditions Fainting. Table of Contents. What is fainting? Symptoms of fainting The primary symptom of fainting is losing consciousness. What causes fainting? Alcohol, cocaine, and marijuana can also cause fainting. A person often has warning sign before a simple faint: these signs include pale skin, blurry eyesight, nausea, and sweating. Others signs are feeling dizzy, cold, or warm.
These last for seconds before fainting. Disclaimer: this health information is for educational purposes only. You, the reader, assume full responsibility for how you choose to use it. Note : In this illustration the individual in shock is laying down and his feet have been placed up on a stack of blankets.
Contact Us. First Aid - Heat Exhaustion Move the victim to a cool shady area.
0コメント