Every year, World Blood Day is celebrated by blood services worldwide on 14 June, the birthday of Nobel Prize winner Karl Landsteiner, the man who discovered the ABO blood group system. If you have every thought of becoming a blood donor, just register to do it. And you should never worry about the donation. Just under a pint (around 470ml) of blood is taken at one sitting. This amount is no more than 13 percent of your total blood volume, and is quickly replaced by your body. It may come as a surprise, but whole blood is only rarely used. Different blood components are used to treat a range of conditions. None goes to waste. Read blood cells are frequently used to replace heavy blood loss after an accident, surgery or childbirth. White blood cells and antibodies are used to help people fight infections if their immune system doesn't appear to be responding to antibiotics . Plasma ,the straw-coloured fluid which carries the blood cells and contains proteins, are used to treat burned patients. First-time donors should be aged between 17 and 65, weigh at least 50kg and be in good health. If you have donated before, you can start being a donor again up to your 70th birthday. Although most people are able to give blood, some people who pose health risks or are at a higher risk of having come into contact with an infectious disease are no tasked to be donors. Pregnant women or those who have had a baby in the last 9 months should not donate blood. Blood has a very short shelf life. Some blood components can be kept longer than others, for instance red blood cells will keep for 35 days but platelets for only five. Remember, you should wait at least 16 weeks before donating blood again. What component of blood is used to treat burned patients?
Plasma Red blood cell Antibody White blood cell