Question

How many litres of blood is present in the body and how much will be taken during the blood donation

Answer 1

4.7 to 5 litres of blood is present in the body. During blood donation,more than300ml is never taken

Answer 2

In an average healthy adult, the volume of blood is about one-eleventh of the body weight. Most sources state the volume of blood in an average human adult, who is between 150 to 160 pounds, as between 4.7 and 5 liters, although the more recent sources state the volume of blood in an average adult as 4.7 liters.

Any person between 18 and 60 years, weighing 45 kg or more can safely donate one unit of blood, that is, 350 ml once every three months. 

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