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I have a question for you guys concerning the positive and negative on your blood types. I'm confused, like if a person is A+, would they be able to get A- blood (as in a transfusion) or just the A+ blood? Hope this makes sense
They can get the transfusion ONCE and only once from the non-similar blood type due to the rH factor. Once the non similar blood has been mixed antibodies are constructed against the rH factor. This is the reason if they do not know what blood type someone is they give them O negative (Universal Donor) They try to get the rH factor correct with the matching O type, but sometimes it just does not occur.
I have a question for you guys concerning the positive and negative on your blood types. I'm confused, like if a person is A+, would they be able to get A- blood (as in a transfusion) or just the A+ blood? Hope this makes sense
If the blood groups are the same, either A, B, AB, & O, the blood type with the absence of the RH factor can be given to the person with blood type that includes the RH factor. But this cannot be done in reverse. Giving the RH positive blood type to a RH negative blood type person can be done probably once without undue consequences, although side affects are usually seen. The RH negative recipient will develop antibodies to the RH factor antigen if given the wrong blood type that will result in anaphylactic shock if given blood that contains the RH factor again.
i think it's odd that mine is ab+, my wifes is o- and my 2 girls have a+ & b+ respectively...??
i may be wrong, but I don;t beleive blood types are genetic. Me, my brother and sister's blood types have noting in common with our parents either. Of course, my dad is O- too, so maybe that has something to do with it.
O- is double recessive, an AB+ would have two different dominant genes (1 A and 1 B) either of which would be expressed over the recessive genes of the other parent. One of your kids got your dominant A gene and Mom's recessive O- gene, and the other got your dominant B gene and Mom's recessive O- gene. A type A blood type can have either 2 A genes or an A gene and an O gene. A type B blood type can come from either 2 B genes or a B gene and an O gene. An O blood type can only come from 2 O genes.
If you want to read up on something really interesting, look up "bombay" blood type. I'm a clinical lab scientist (medical lab tech) and work in a hospital blood bank. The the ABO-Rh system is not the only things you have to worry about when transfusing blood, there are also antibodies both cold and warm reacting.
Take a look at this: http://www.bh.rmit.edu.au/mls/subjec...frequency4.htm
O is recessive compared to all the other types, so unless both parents are O, then the offspring cannot be. Its all genetics, and now I wish I would have paid more attention in bio class last year.