I have Masters degree with Distinction and Student of the Year Prize in Corrosion of Engineering Materials from Imperial College London, first degree in Chemistry from University of Central Lancashire and also did Technology, Material Science and Engineering and Mathematics from the Open University.
In areas where tattooing is not as closely monitored, people are asked to wait for 12 months to give blood after getting a tattoo. This waiting period ensures that the donor is free of any potential blood-borne diseases which could have been passed on unsanitary equipment.
The answer to how long does it take to donate blood depends on various factors. Whole blood donation takes approximately 45 to 60 minutes. Actually, a standard whole blood collection only takes 5-10 minutes, but there are several procedures that are associated with it.nce the blood has been drawn, it is recommended that the donator rest for a minimum period of fifteen minutes, as the loss of blood may cause dizziness. How long does it take to donate blood time period also includes the time of rest as well as energy replenishment.