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.
1 Apheresis platelet donation â you must wait 14 days between donations. 2  Athletics â you should avoid strenuous activities for at least three to five hours after donating and no heavy lifting for rest of the day.  Blood transfusions â you must wait one year after receiving a blood transfusion before you can donate.