A member asked:

How much blood can a person lose before it is fatal?

A doctor has provided 1 answer

Depends: It depends on the pace at which blood is lost. Acute loss of 30% or more carries risk of death. Slow blood loss, e.g. Excessive menstrual loss can reduce blood hemoglobin to levels as low as 5.0 gm without many symptoms.

Answered 8/4/2012

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