Why cant a person with Type A blood safely receive blood from a person with type B blood?
Millions of people – including trauma patients, burn patients, cancer patients, and people with certain diseases – benefit from blood transfusions each year. For the transfusion to do its lifesaving work, hospital staff must ensure that the blood being given is compatible with the patient’s own blood type. Your blood type is inherited from your parents, much like your eye and hair color. Take a look at our genetic chart. Show
Learn More About Your Blood Type CompatibilityType B Negative
Type B Positive
Platelets are critical for cancer patients. They must be transfused within 5 days of donation.Blood and Platelets must be from donors, it can’t be manufactured.By the time you are six months old, you will have antibodies against antigens lacking in your blood.Latest studies have shown that someone in the US needs a blood transfusion every 2 seconds each day in the United States. The average person can only donate 1 pint of whole blood in a single donation and the shelf life is 42 days, which is why the need to keep replenishing the supply to meet demand is great. How do you perform safe blood transfusions?A blood transfusion involves taking blood from one person (a donor) and giving it to another to replace blood lost in major accidents, or during life-saving operations, for instance. In order to make safe blood transfusions it is important to know to what blood type the patient belong to. Mixing incompatible blood types could be dangerous and lethal. Early blood transfusions consisted of whole blood, but modern medical practice commonly uses only components of the blood, such as red blood cells or plasma. If you have lost blood due to an injury or surgery red blood cells are the most commonly transfused part of the blood. Red blood cells are also used for transfusion if you have anemia (uh-NEE-me-uh). Blood transfusion is the process of receiving blood products into one's circulation. Transfusions are usually given through a tiny tube that is inserted into a vein with a small needle. What happens if you get the wrong blood in a transfusion?Immunological reactions occur when the receiver of a blood transfusion has antibodies that work against the donor blood cells. Then the red blood cells from the donated blood will clump, or agglutinate. The agglutinated red cells can clog blood vessels and stop the circulation of the blood to various parts of the body. The agglutinated red blood cells can also crack open, leaking toxic contents out in the body, which can have fatal consequences for the patient. Compatible bloodFor a blood transfusion to be successful, AB0 and Rh blood groups must be compatible between the donor blood and the patient blood. You primarily try to give the same blood type as the patient herself/himself has got. However, some blood types could be rare in different parts of the world or hospitals might be out of stock with a particular blood type. Therefore you need to know which blood types are “compatible”, that is which other blood types fit a patient with a certain blood type. For example, a person with blood type B Rh- has got A and Rh antibodies and cannot receive a blood transfusion with red blood cells which have A and Rh antigens like A Rh+ or AB Rh+. What happens when blood clumps or agglutinates?If the blood is not compatible in a blood transfusion,then the red blood cells from the donated blood will clump or agglutinate. The agglutinated red cells can clog blood vessels and stop the circulation of the blood to various parts of the body. The agglutinated red blood cells may also crack and their contents leak out in the body. The red blood cells contain hemoglobin which becomes toxic when outside the cell. This can have fatal consequences for the patient. The antibodies' task is to act against foreign substances in the body. To a person with B blood the A antigens is considered foreign. The A antigen and the A antibodies can bind to each other in the same way that the B antigens can bind to the B antibodies. This is what would happen if, for instance, a B blood person receives blood from an A blood person. The red blood cells will be linked together, like bunches of grapes, by the antibodies. As mentioned earlier, this clumping could lead to death. Who can receive blood from whom?People can happily receive blood from the same blood type as their own, but they have antibodies against any antigens not found on their own red blood cells. Look at the "Compatible blood chart" below! ABO blood system Rh blood system This "Compatible blood chart" refers to blood transfusions with red blood cells. People with O Rh- blood can only receive O Rh- blood. What if there is no time for blood typing?In emergencies, there are exceptions to the rule that the donor's blood type must match the recipient's exactly. Blood type O Rh- is the only type of blood that people of all other blood types can receive, so it is used in situations when patients need a transfusion but their blood type is unknown. People with blood type O Rh- are called Universal donors.
Be a blood donor!Blood donors must be at least 17-18 years old in most countries. Disclaimer: Also, the antibodies are here referred to as A antibodies, B antibodies and Rh antibodies. These are also commonly referred to as anti A antibodies, anti B antibodies, and anti Rh antibodies. NOTE: A person with blood type O Rh- blood is considered to be a "universal donor", which means that any person, regardless what blood type you belong to, could receive O Rh- blood in a transfusion, for instance in an emergency situation when there is no time for blood typing. Recent research indicates that this may no longer be totally accurate, because of a better understanding of the complex issues of immune reactions related to incompatible donor blood cells. To cite this page Why can't Type A blood be given to a patient with Type B?People typically have one of four blood types—A, B, AB, or O—defined by unusual sugar molecules on the surfaces of their red blood cells. If a person with type A receives type B blood, or vice versa, these molecules, called blood antigens, can cause the immune system to mount a deadly attack on the red blood cells.
Why can't a person with type B blood receive a blood donation from someone with type A or type AB blood?B type blood has anti-A antibody in the plasma. AB has neither A nor B antibody in the plasma.
Why is a person with type O blood unable to receive blood from any type other than O?1 Answer. It's because type O blood lacks any antigens, and therefore a person with type O blood has A, B, and Rh antibodies, assuming they are type O-negative.
Can a person with type AB blood can safely receive blood from someone with type B blood?AB positive blood type is known as the “universal recipient” because AB positive patients can receive red blood cells from all blood types.
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