![]() ![]() The Kell factor refers to an antigen (a protein which brings on an immune response in the body, especially the production of antibodies) that's attached to the membrane of red blood cells. One of these different classifications is Kell. ![]() However it’s actually only one of 35 different ways of classifying human blood according to different elements within it. What is Kell neg blood?Īs most blood donors know, the ABO system, with its four (A, B, AB and O) different blood types, is the most common way of classifying blood. It is also used for women of childbearing age. O neg, Kell neg, CMV neg, 'rr' blood is used in emergencies, and transfused to those with unformed or weakened immune systems - for example babies, patients undergoing chemotherapy, and those with immunodeficiency conditions. Who needs O neg, kell neg, CMV neg, 'rr' blood? And it gives the most defenceless patients in Scotland the very best chance of survival. If we have ever got in touch with you to tell you your O negative (O neg) blood is also Kell negative (Kell neg), CMV negative (CMV neg) and 'rr', this means your blood is very rare, very special, and very much in demand, because it’s the least likely to have a bad reaction if transfused – the nut-free, dairy-free, and probably gluten-free pudding of the blood product world. This is why it is vital that hospitals around the country have stock of 'high spec' blood products – blood donated by a small set of donors which fulfil a very precise set of criteria, and is the safest that can be given to certain vulnerable patients. ![]() In the same way, although all blood comprises three basic parts (red cells, plasma and platelets), each donation of blood has a slightly different 'recipe' which means that although the end product is in essence the same, there are lots of tiny elements within it which can affect how well a patient reacts to a transfusion. They're all Christmas puddings, with the same base ingredients of fat, flour and sugar, but with added extras which can react differently with those who eat them. These days, you get all sorts of Christmas puddings – ones with hidden orange, ones with figs, even ones with chocolate. But given the time of year, they’re a good metaphor for explaining something which can get pretty complicated – and for some patients, extremely important. Blood Donation Statistics and Public Messaging Guide, May 2022.ĭID YOU KNOW? If you have O- blood, you are automatically eligible to earn exclusive rewards by donating as part of our Rapid Response Team.What do Christmas puddings and blood types have in common? Well, on the face of it, not a lot. ![]() Although anyone can receive O- blood cells, type O- can only receive type O- blood.Doctors depend on type O blood for trauma patients and accident victims.Preferred donation methods: double red blood cell and whole blood.Type O- red cells can be used for any patient but are especially needed for emergencies, for babies, and for those with weakened immune systems.O- is the highest in-demand blood type because anyone can receive O- red blood cells, although O- plasma can only be transfused to another type O.In the case of an emergency, doctors often do not have time to determine the blood type of the patient and depend on Type O blood for trauma patients and accident victims. This means that their red blood cells can be transfused to any patient, regardless of the recipient’s blood type. Type O-Negative donors are universal donors. ![]()
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