8/21/2023 0 Comments B negative blood type origin![]() ![]() If you have Rh negative blood, please donate regularly (at least twice a year) to help maintain our blood stocks and save lives. When this happens, it is more difficult for the blood stock to recover as the proportion of donors with Rh negative blood is very small. Rh negative blood stock may also dip during festive seasons and long holiday periods. Ideally, we need to maintain a 12-day stockpile for Rh negative blood to respond to civil or medical emergencies in Singapore.Īny sudden increase in the Rh negative blood usage, for instance, when a patient with a specific Rh negative blood group suffers a massive blood loss due to surgery, can cause the Rh negative blood stock to drop. The challenges of maintaining a sufficient blood stock This is to prevent them from developing antibodies to the Rh antigen, which can lead to potentially serious pregnancy complications in the future. This can be potentially life-threatening. This is because Rh positive blood increases their risks of developing antibodies to the Rh antigen, which may lead to increased breakdown of the transfused blood and adverse transfusion reactions. Patients with Rh negative blood group are recommended to receive Rh negative blood. Why it is crucial to maintain a sufficient blood stock Rh negative blood such as A-, B-, O- and AB-, does not have the (D) antigen on the surface of the red blood cells. People who have the antigen on the surface of their red blood cells have Rh positive blood such as A+, B+, O+ and AB+. The Rh (“Rhesus”) blood group antigen (D antigen) is a protein found on the surface of red blood cells. Hence, it is crucial to maintain a sufficient blood stock of Rh negative blood. Group O Rh negative blood is recommended for the emergency transfusion of females with current or future child-bearing potential before their blood groups can be tested, if they have a higher likelihood of being Rh negative. Patients with Rh negative blood group, requiring a blood transfusion, are recommended to receive Rh negative blood. Rh negative blood is found most commonly in Caucasians and Indians. The blood group is inherited, like the color of the eyes or the skin, that is why most people share the same groups.Only about 1.5% of our donor population are Rh negative.Having some or other antigens determines blood groups. On the surface of the red blood cells there are some proteins, antigens. The blood circulating around the body contains red blood cells.If you have any doubt you can write us at call us at 93 557 35 66. If your blood is rare, we will let you know and ask you to donate blood only when a person with the same type needs it. If you want, you can also make a conventional blood donation. The hospital will take a sample of your blood to find out if it's rare. To find out if you have a rare blood type, you should go to a hospital with a blood bank (see the list on the back) and tell the staff that you are interested in joining the register of rare blood donors. What can I do if my family or I are were born in one of these countries? Nevertheless, we need to add more people to the register of rare blood donors to meet the growing need for this type of blood. Worldwide, there are 60 centres in 26 different countries ready to help each other. There is also an international network of centres specialising in rare blood, which the Banc de Sang i Teixits in Catalonia is a member of. The Banc de Sang i Teixits has located 500 donors with rare blood types, who we ring whenever a patient needs it. Citizens who live in Catalonia and are from this area, as well as their children, may have this rare type of blood. In these countries there is a greater presence of people with the Indian b negative group. In recent years, with more people of African origin living in Catalonia, the need for blood transfusions of rare types from Sub-Saharan Africa has increased. Sub-Saharan Africa. One of the rare blood type is the U-negative,found in Africa.This is why rare blood types are easier to find among people from that sample place. People from the same geographical area share similar blood types. The Banc de Sang i Teixits is looking for donors with this uncommon blood. Due this, we are now looking for new donors that allow us to ensure compatible blood supply when a patient needs it. When a patient needs to receive a transfusion of rare blood, time is crucial. ![]() This means that between 0.01 and 0.1% of the population have special blood and need an equally special donor. However, 1 in 10,000 people have a very special blood type. One in 10,000 people have a blood type that no-one else has. But did you know there are over 300 blood groups worldwide? We all know the most common blood types: A, B, AB and O and their Rh+ and Rh- variations. ![]()
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