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- $Unique_ID{BRK01398}
- $Pretitle{}
- $Title{Fainting at the Slightest Sight of Blood}
- $Subject{fainting treatment first aid ill defined symptoms symptom sight blood
- pass out syncope brain blood flow oxygen faint fainted vasovagal emotional
- vessels dilate circulating circulate consciousness loss dizziness
- lightheadedness behavior behaviors circulatory system dizzy dizzying passes
- passing vessel unconsciousness lightheaded}
- $Volume{N-23,G-1}
- $Log{}
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- Copyright (c) 1991-92,1993 Tribune Media Services, Inc.
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- Fainting at the Slightest Sight of Blood
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- QUESTION: Can you help reassure both my wife and myself? She will faint at
- the slightest sight of blood, and I am neither sure of the correct treatment
- to render, nor the seriousness of her problem. Your instructions are needed
- and your impression as to the cause would be most appreciated.
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-
- ANSWER: The reason that people faint or "pass out" (doctors call it
- "syncope") is simply that the brain does not receive enough blood flow
- carrying the oxygen that the brain needs. However, the cause of this reduced
- blood flow is not always the same in each individual, and when it occurs
- repeatedly, deserves a bit of attention. From your letter it would seem that
- your type of fainting, which is quite common and not at all dangerous, is of
- the vasovagal variety, and is brought on by physical or emotional stimuli,
- like pain, or in your wife's case, the sight of blood. For some reason, this
- causes the nerves leading to small vessels in our circulatory system, to send
- out messages which make the vessels dilate, and grow larger, increasing their
- capacity to hold blood very rapidly. Much of our circulating blood can "pool"
- in these vessels, diminishing the amount available to circulate to our brain.
- The brain simply can not function properly without enough oxygen, causing a
- loss of consciousness. Some warning symptoms may be experienced, like
- dizziness or lightheadedness before the actual loss of consciousness. Then
- the fall, hopefully onto some soft spot, which brings the head down to the
- level of the heart, thus increasing the blood flow to the brain. Actually
- this is nature's own treatment, and once in the horizontal position, no
- further treatment is needed. The faint is rapidly over, and the patient can
- slowly begin to get back to normal. Easy at first, for sitting up too rapidly
- after a faint can sometimes cause it to reoccur. Keep your wife sitting where
- she is for a moment or two, then up to sitting on a chair, then gradually to a
- full standing position, all easy actions for you to help with. Just stay
- calm; the episode will end rapidly, with no lasting ill effects to worry
- about.
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-
- The material contained here is "FOR INFORMATION ONLY" and should not replace
- the counsel and advice of your personal physician. Promptly consulting your
- doctor is the best path to a quick and successful resolution of any medical
- problem.
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