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A 37-year-old member asked:

Can you tell me if a b- blood type could be used for someone with o+ blood type to have a blood transfusion?

1 doctor answer5 doctors weighed in
Dr. Donald Alves
Emergency Medicine 24 years experience
No: Each person has two components to blood type (one each from mother & father). To be "O," both must be O (OO). To be type B, could be BO, BB, OB. Type O(-) ideally is the "universal donor," as cells lack any major antigens. O could be given to B,but Type B has antigens that would react in a person w/type O blood.

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Last updated May 21, 2015
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