The average adult has approximately 10 pints of blood in their body. Making a blood donation uses about 1 pint, after which your body has an amazing capacity to replace all the cells and fluids that have been lost. Your body will typically replace the blood volume (plasma) within 24 hours. It will take four to eight weeks for your body to completely replace the red blood cells you donated, which is why the FDA requires an eight-week wait between blood donations. Less than 5% of the eligible population donates blood, despite the fact that more than 90% of the population will require blood at some point in their lives.
When you donate blood, you give around one pint. How much blood do you have in your body to start with?
[Ans] When you donate blood, you give around one pint. How much blood do you have in your body to start with?
According to an older review article in Critical CareTrusted Source, blood accounts for:
- approximately 7–8% of an adult’s body weight
- approximately 8–9% of a child’s body weight
- approximately 9–10% of an infant’s body weight
In this article, learn more about the average volume of blood in adults and children. Learn, too, what causes blood loss, how it affects the body, and what to do if it happens.
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