Typically, one US Pint (450 ml) of whole blood is taken via a needle inserted into the vein of the donor. This is a very simple and quick process that does not involve any special separation machinery.
This site is for informational purposes only. Please consult with the trained professional that will be taking your blood to be sure that your donation is safe and acceptable. This site is meant as a quick calculator to help you determine when you are eligible to donate blood after your last donation. We found that there are many sites that list the number of days required before donating blood again, but none that calculated the date when you can donate blood again based on your last donation date. We hope you like it and if you have any suggestions, please email us at info@whencanigiveblood.com