![]() Your doctor or healthcare provider will ask about your symptoms and how you felt before you fainted. If you go to your doctor or urgent care after fainting, they’ll first take a medical history. ![]() It’s also important to get immediate care if you faint and can’t be woken up for over a minute. You should get medical care immediately after fainting if you have: have other unusual symptoms in addition to fainting.have fainted more than once recently or often feel like you’re going to faint.But there are some cases when you should definitely follow up with your doctor. If you faint once and are in good health, you probably don’t need to go to the doctor. Doctors believe that low blood pressure and a slow heart rate play a role in this type of fainting episode. In some cases, straining while urinating or having a bowel movement can cause fainting. Some blood pressure medications can lower your blood pressure more than you need. Hyperventilation causes you to breathe very fast, which can prevent your brain from getting enough oxygen. Severe pain can stimulate the vagus nerve and cause fainting. Overexerting yourself, especially in hot weather, can cause dehydration and a drop in blood pressure. Both drugs and alcohol can interfere with your brain chemistry and cause you to have a blackout. Standing in the same place for too long can lead to blood pooling away from your brain. Getting up too quickly from a lying or sitting position can result in not enough blood getting to your brain. Emotions such as fear, stress, or anger can affect the nerves that control your blood pressure. Heart problems, especially arrhythmia (an abnormal heartbeat) or a blood flow blockage can disrupt the flow of blood to your brain. Not taking in enough fluid can cause your blood pressure to drop. This can cause low blood sugar, especially if you have diabetes. There are many potential underlying causes for this, including: Call for help if they’re injured, not breathing, or don’t wake up after 1 minute.įainting happens when the blood flow to your brain decreases, or when your body doesn’t react fast enough to changes in how much oxygen you need. ![]() You can also move objects away from them in case they do faint. If you can, bring them food or water, and get them to sit or lie down. If you see someone who looks as if they’re about to faint, have them follow these tips. If you think the feeling may be caused by dehydration, slowly sip water.If you think your lightheadedness may be caused by a lack of food, eat something.Cross your legs or press them together tightly to raise your blood pressure.Make a tight fist and tense your arms.Whether you’re sitting down or lying down, wait until you feel better and then stand up slowly.If you can’t lie down, sit down and put your head between your knees.If you can, lie down with your legs in the air.If you feel like you’re going to faint, some of the following steps may prevent you from losing consciousness: ![]() What should you do if you feel like you’re going to faint? While you’re giving blood or getting the shot, lie down, don’t look at the needle, and try to distract yourself.
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