By: Giselle DeCavalier
This author or this site does NOT promote the use of blood donations. IF you chose to engage in blood donations, you MUST be 18 and over. The following information is based on the donor being healthy and NOT anemic. It is just a GUIDELINE! Some donors can handle more; some donors less. Every person is different. I am NOT a doctor and I do not claim to be one.
The average human body holds 4.7 liters or 10 to 12 pints. One pint is equal to 16ozs.
The human body can lose 2 pints or 10-15% of this volume without any serious effects to the body. 10-15% of 4.7 liters is 1 pint,16 ozs or 473ml(cc).The most a human can lose at one time without serious health risk is 2 pints, 32 ozs or 940ml.
This means you would have to drink over 32ozs of blood before hurting your donor. Now in my world, I do not know of anyone who could down a 32ozs of soda at one time without taking a breath or throwing up. I am not saying that some could not. I am sure that they can. I make this point to show how hard it would be to drain your donor dry. IF you take a large amount of blood from your donor, here are some safety things for you to know.
You CANNOT take the maximum amount of blood again for 6 weeks. The reason for this is, the body can replace blood volume (sodium and water) within 24 hours,but the red bloods cells themselves need 6 weeks. In three weeks or so you could get a donation again. Your donation would only have half of the number of red blood cells it normally has. For the normal volume it takes the whole six weeks.
I hope this information helps the donor and vamp make the right decisions as to how much blood is safe to
take. The things you can do to help keep your donor stay healthy, I have listed under tips for Taking Care Of Your Donor.
For further reading on Bleeding.