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A member asked:
How much blood loss does it take to start feeling dizzy?
A doctor has provided 1 answer
500 ml: About 10 % of blood volumen, even less. Are you bleeding severely, if so go to er. If you look sick, dizzy , and unstable then you are sick and need evaluation (it does not matter if you have normal blood volumen).
Answered 7/11/2012
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