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People with blood group "O" carries no antigents on their blood cells (in contrary, "A", "B", and "AB" group carries "A","B" and "AB" antigens respectively on their red blood cells). When the "O" group person receives A,B or AB blood type, the body tend to act agains it as they contain A, B or AB antigens and produce their respective antibodies to destroy it (just like treating them like a pathogen!). This causes hemolytic anemia(a condition where red blood cells are destroyed)

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9y ago
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12y ago

Generally, if you have O+ blood, you should be able to donate to someone with A+ blood (O+, B+, and AB+ as well). However, blood from someone of the same blood type is preferred, so the hospital may have just preferred to use blood that matched the patient exactly. There are also certain antigens not accounted for in the typical ABO and Rh blood typing (i.e. the Duffy antigen). They may have checked for a match with one of these and not found it. Or you may have the types backwards, as someone who is type A+ would NOT be able to give blood to someone with type O+. This is because someone with type O has antibodies against the A antigens in type A blood, so if they received a transfusion, their blood would react and agglutinate (clump).

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14y ago

People with type O blood have both anti-A and anti-B antibodies. They will react with the type A antigens on the surface of type A red cells and cause the blood to coagulate.

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Q: Why does A+ and O+ blood types do not match for blood donating?
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Which blood types are compatible I have no clue and need help.?

O- is compatible with donating to all blood types. AB+ is compatible with receiving from all blood types. All other blood types are on their own with compatibility.


Should types negative and positive blood types be considered in donating and receiving blood?

Of course! Type O- is the universal donor and AB+ is the universal recipient.


Is blood type o compatible with b?

Should be. i believe o+ universal for all types (but check with med expert)


What are the matching blood types against each type?

When donating blood they can only be given to a specific blood type. Type A can be given to A or AB blood types only. Type B can be given to B or AB blood types only. Type AB can only be given to AB. While type O can be given to all type A, B, AB and O blood types.


What is a match for matching blood types?

They determine the blood match by figuring out the antigens on your Red Blood cells and then providing you with the same blood group type. If the same one is not available then Blood O type is given.


Are all transfusions types the same?

No. Transfusions are categorized into different blood types. ABO blood types are the largest group. A person can have A, B, AB, or O type. The O is considered the universal donor and the AB is the universal recipient. That means that O is the preferred blood type of a person that is donating blood because it can be transfused into any other blood type. The AB is the preferred recipient because they can receive any of the blood types and not reject the agglutinogens, which are the proteins on the outside of red blood cells.


Who do you ask to find out your blood type?

There are four blood types in the ABO Group. They are A, B, AB and O. Your doctor should be able to tell you your specific type. Also, if you are donating blood they should send you a notice with your type on it.


Both my husband and me have O negative blood types. Could there be a problems getting pregnant or any problems with the baby?

No problems related to blood match.


Because my blood type is common can I get blood if I need it quickly?

People with blood types O characteristically have no antigens A and B present but have antibodies for A and B. Due to this characteristic feature of their blood types, they are capable of donating blood to people with any blood type, hence they're considered to be universl donors; however they can only receive blood from people with the same blood type as theirs. For example, blood type O+ can get blood from Type O+ or O-. Since blood type O is relatively common, it is therefore easy to get blood quickly when needed and hospitals tend to have this blood type in stock due to universal donor feature.


How much would I be payed for my blood type which is O?

It is suggested that people donating rare blood types may be paid a higher premium. The actual price varies depending on location and need and also the donation center.


Which blood groups are match with AB for marriage?

o+and ab+match


What blood types are there and how are they determined?

There are 4 basic blood types. A, B, AB, and O. Then, there is the "rh" factor, determining if you are negative or positive. So, there is A+, A-, B+, B-, AB+, AB-, and O+, or O-. "O" is typically the universal donor. That means that it is able to be taken by the other blood types IF you match the (+) or (-). AB- is the hardest type to find, and is less than 1% of the population.