what to do if you feel like passing out

Fainting

Fainting, also called passing out or syncope, is a temporary loss of consciousness. It's caused by a sudden decrease of claret flow to the brain. An episode typically lasts a few seconds or minutes. Well-nigh fainting spells are not a cause for concern. Only if you faint oft or accept other symptoms, y'all should seek medical attention.

Overview

What is fainting?

Fainting is when you lose consciousness for a brusk time. Information technology's caused by a sudden drop in blood period to the encephalon. A fainting episode usually lasts a few seconds or minutes, so the person wakes upwards and returns to normal.

Fainting is also called:

Decreased consciousness.
Loss of consciousness.
Passing out.
Syncope.

Are there warning signs of passing out?

Before fainting, you lot might feel:

Common cold and damp.
Empty-headed.
Giddy.
Hot and all of a sudden sweaty.
Nauseous.
Stressed out or anxious.
Weak.

In addition, you may:

Fall downward.
Become a headache.
Have vision changes ("white out," "black out" or "encounter stars").
Hear ringing in your ears.
Lose control of your muscles.

Possible Causes

What are the about mutual causes of fainting?

Fainting is usually non a sign of a serious wellness problem, merely it tin exist.

The near common reason for fainting is a sudden driblet in blood pressure, which reduces blood menstruum and oxygen to the brain. In that location are many reasons why a drop in blood pressure could lead to a temporary loss of consciousness:

Cardiac syncope: This blazon of syncope involves fainting due to a heart trouble. Many heart conditions tin can bear upon how much oxygenated blood is pumped to the brain.
Carotid sinus syncope: This type of syncope can happen when the carotid artery in the neck is constricted (pinched). The carotid artery is a blood vessel that supplies the brain. This blazon of fainting can occur when someone wears a very tight collar, stretches or turns the cervix also much, or has a os in the neck that is pinching the artery.
Situational syncope: Certain bodily movements or functions can naturally cause a drop in blood pressure that may lead to fainting spells. Examples include when a person pees, poops, coughs or stretches.
Vasovagal syncope: This can occur when a person experiences a stressful upshot. Examples include the sight of blood, emotional stress, physical or emotional trauma, or pain. The stressful upshot stimulates a bodily reflex chosen the vasovagal reaction. The heart slows down and pumps less blood, so claret pressure drops. Then the encephalon doesn't go enough oxygenated claret, and the person faints.

Are there other reasons why I fainted?

Other possible causes of passing out include:

Certain medications such every bit diuretics (water pills), calcium channel blockers and angiotensin-converting enzyme (ACE) inhibitors (often used for high blood pressure level). Other examples include nitrates for center illness, antipsychotics for mental health disorders, antihistamines for allergies and narcotics for pain.
Dehydration or overheating.
Neurologic condition, such equally a seizure disorder, although this is rare.
Sudden drop in blood sugar, every bit may happen in a person with diabetes.

Activities that may crusade you to pass out include:

Skipping too many meals.
Hyperventilating (breathing also fast).
Working, playing or exercising too hard, especially in the rut.
Standing up too speedily.
Using alcohol, marijuana or illegal drugs.

Care and Treatment

What should I practice if someone faints?

If someone loses consciousness:

Make sure the person'due south airway is articulate.
Check that the person is breathing.
Check that the centre is beating.
Call 911 or seek firsthand medical attention if needed.

When someone faints and so wakes up:

Encourage them to sit down downwardly or lie downward for 10 to fifteen minutes (sometimes longer, until symptoms laissez passer).
Cheque for any injuries that might demand medical attention (such as a head injury or a cut).
Propose that they sit frontward and lower their head beneath their shoulders and knees.
Offering water ice or cold h2o.

Tin can I prevent fainting?

Pay attention to specific activities or situations that trigger fainting. When you lot know what causes your fainting spells, you can take steps to avoid them. For example, if getting up likewise quickly sometimes makes you lot pass out, learn to take your time standing.

If you lot notice how you experience only before you lot faint, you tin try certain strategies to forestall information technology:

Make a fist.
Tense your arms.
Cantankerous your legs.
Squeeze your thighs together.

When to Call the Doctor

When should I discuss fainting with my doctor?

If you faint once and are in good health otherwise, you probably don't demand to talk to a healthcare provider. Just seek medical attending if you:

Are injured due to a fainting fall.
Have repeat, frequent fainting spells.
Take longer than a few minutes to regain consciousness.

Talk to a healthcare provider if you pass out and accept whatsoever of the following symptoms:

Blurry vision.
Chest pain.
Confusion or trouble talking.
Irregular heartbeat.
Loss of control with peeing or pooping.
Shortness of jiff.

Also report whatever loss of consciousness to a healthcare provider if you:

Are pregnant.
Have diabetes.
Have a problem with your centre or blood pressure.

A note from Cleveland Clinic

Fainting, or passing out, is usually caused past a driblet in claret pressure, which reduces blood flow and oxygen to the encephalon. Well-nigh fainting spells are aught to worry about. Only talk to a healthcare provider if you lot lose consciousness repeatedly or accept any other symptoms.

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Source: https://my.clevelandclinic.org/health/symptoms/21699-fainting