How long does it take for my body to replace the blood you took?
Although it may seem like a lot of blood goes into the tubes, it is really a very small portion of your total blood supply. Each tube contains about one teaspoon of blood compared to the average adult's total blood volume of about 1 gallon. If you have a drink of water or juice right after, your blood volume will be back to normal within an hour or so. Your body will replace the missing blood cells within a few days.
