Fainting: First aid - Mayo Clinic
2023年4月5日 · Fainting occurs when the brain doesn't receive enough blood for a brief time. This causes loss of consciousness. Consciousness is usually regained quickly. Fainting might have no medical significance. Or the cause can be a serious disorder, occasionally involving the heart.
Fainting: Causes, Symptoms and When to see a Doctor - Patient
2024年7月31日 · Many people get simple faints (vasovagal syncope) only once or twice. Identifying and avoiding triggers for a fainting spell can help to prevent them happening. The outlook for other causes of faints depends on the cause. Some causes can be easily treated, whereas others can be challenging to fix.
Fainting: Causes, Types, and Prevention - Healthline
2023年7月3日 · Fainting, or the temporary loss of consciousness, can occur if your brain isn’t getting enough oxygen. Fainting may be triggered by a number of factors, including dehydration, low blood sugar,...
Understanding Fainting -- Diagnosis and Treatment - WebMD
2023年5月2日 · WebMD explains how your doctor will determine the cause of your fainting, and what to do if someone nearby faints.
Causes of Fainting: Reasons for Passing Out - Verywell Health
2024年12月2日 · Fainting (syncope) is a sudden loss of consciousness from a lack of blood flow to the brain. People who have passed out usually wake up quickly after collapsing, but in some cases, fainting is a sign of a serious or potentially life-threatening condition.
Syncope | Fainting - MedlinePlus
2016年8月4日 · Fainting, or syncope, is a brief loss of consciousness when blood flow to the brain suddenly drops. Know the causes and what to do if someone faints.
Fainting: Symptoms, Causes, and Treatment | Red Cross
Fainting is caused by a sudden decrease in blood flow to the brain. Usually the cause of fainting is not serious. For example, being dehydrated (not having enough fluid in the body), being too hot, being in a crowded room or feeling intense emotion can cause a person to faint. After the person faints, the head is at the same level as the heart.
Fainting (Syncope): Causes, Symptoms, Treatment, Prevention - MedicineNet
2023年5月18日 · Fainting, "blacking out," or syncope is the temporary loss of consciousness followed by the return to full wakefulness. This loss of consciousness may be accompanied by a loss of muscle tone that can result in falling or slumping over. To better understand why fainting can occur; it is helpful to explain why somebody is awake.
Fainting - NHS
Fainting is when you pass out for a short time. It's not usually a sign of something serious, but if it happens you should see a GP. There are many reasons why someone might faint. Causes include: Fainting usually happens suddenly. Symptoms can include:
FAINTING OR SYNCOPE: ALL YOU NEED TO KNOW - Mya Care
2024年1月23日 · Knowing what to do when someone faints is essential because, in rare yet serious cases with a cardiac cause, there is a risk of mortality. This article will discuss everything you need to know about syncope, including its causes and symptoms, how to prevent it, and what to do when someone faints.