Fainting (cont.)
IN THIS ARTICLE
Fainting Symptoms
Unconsciousness is an obvious sign of fainting.
Vasovagal syncope
- Before fainting, you may feel light-headed and shaky and experience blurred vision.
- You may "see spots in front of your eyes."
- During this time, observers note paleness, dilated pupils, and sweating.
- While unconscious, you may have low pulse rate (less than 60 beats/minute).
- You should quickly regain consciousness.
Situational syncope
- Consciousness returns when the situation is over, usually very quickly.
Postural syncope
- You may have noted a blood loss (black stools, heavy menstrual periods) or fluid loss (vomiting, diarrhea, fever).
- You may have experienced light-headedness when sitting or standing.
- Observers may note paleness, sweating, or signs of dehydration (dry lips and tongue).
Cardiac syncope
- You may report palpitations (awareness of pounding, fast, or abnormal heartbeat), chest pain, or shortness of breath.
- Observers may note a weak, abnormal pulse, paleness, or sweating.
- Syncope often occurs without warning or following exertion.
Neurologic syncope
- You may have headache, loss of balance, slurred speech, double vision, or vertigo (a feeling that the room is spinning).
- Observers note a strong pulse during the unconscious period and normal skin color.
Seizures
People experiencing a seizure may report strange sensations that precede the unconscious period. (This is referred to as an aura.)
- Incontinence (inability to hold urine or stool) is common.
- If observers are present during the seizure, they note sustained convulsions (lasting longer than 8 seconds).
- A prolonged period of confusion, lasting several minutes, follows the seizure.
- During a seizure, people often scrape themselves or bite their tongues.
Next: When to Seek Medical Care »
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Syncope and Related Paroxysmal Spells »
Syncope is a term used to describe the loss of consciousness from temporary disruption of cerebral oxygenation.
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