Examine why medical professionals establish the blood type of the donor?
472550
because if you are in need of blood and the Dr's give you the wrong type it can kill you your body attacks it because it is totaly forign.  So they type the donor and the recipient.  If you are wondering why you have had your blood typed more than once it is because it did not make it into your file and the can not take your word for it because it cool kill someone
203519
A universal receiver would carry all the major blood antigens, and so not react adversely to any of those antigens if they received them in a transfusion.  \n\nA universal receiver would therefore carry the A and B antigens, and also be Rh factor positive.  So their blood type would be AB+.
788436
You can rule out certain blood types, but you can't know the exact one for sure.  For example, you can be sure the father is not either blood type O or B, but he could be A or AB.  The rh factor isn't as easy to figure out.
763275
just like any other trait, the baby can inherit the blood type from either the mother OR the father.\n\nHere's a link that shows possibilities for the baby depending on each parents blood type:\nhttp://mistupid.com/health/bloodinherit.htm
823449
Can you imagine it? Organs could be grown for people in need that are an identical genetic match basically eliminating the chance the body would reject it. Millions of people are waiting for suitable donors and this could save a lot of lives. I don't see the problem.
304935
Primarily because one can get donors from the family, thus reducing the chances of foreign proteins causing rejection.  Kidney transplants come from living people, thus are always extremely fresh-and the person can be carefully chosen to match a great number of protein markers.  This is not true for heart transplants, which must come from terminal victims, and in which they must merely take the best match, no matter how bad it is.
133434
cswolf11 is the closest to being correct.  If you are AB Rh pos, you can recieve any blood type from a donor.  If you are AB Rh neg you can receive any blood type that is Rh negative.  To complicate things a bit, if you are Rh negative, you can receive Rh positive blood at least once.  Chances only 50% that your body will see the donor blood as foreign and make antibodies to it.\n\nOK, a bit more complication, there are hundreds of different antigens on red blood cells - ABO and Rh are just the 4 most important.  You can make antibodies to any of them that you don't have and cut down your choices of donors.
199115
on red blood cells there are two major antigens A and B among other minor antigens.these designate one's blood group.\nBlood group O is indicative of one having no blood group antigens on his/her red blood cells.\nfor any blood group antigen there's a corresponding blood group antibody in the blood fluid i.e plasma or serum.for example if you are blood group A then your blood will have antibody B,if you have blood group B then you have antibody A.however if one is blood group O then that means that you have both antibodies A and B,and if you are blood group AB then you have no major blood group antibodies i.e neither antibody A nor B is present in your plasma.now if a blood group A person receives any blood group other than A or O then the antibodies in the plasma cause clumping(coming together)of the foreign blood cells.this causes blocking of the blood vessels with disastrous results.please note that it's the foreign blood cells that are clumped by the native antibodies if they match i.e A with Antibody A,B with antibody B,O with either A or B and AB by none.for this reason O can donate blood to any blood group but cannot receive blood except from another O and AB can receive blood from anyone but cannot donate their blood to anyone except AB.there is another group of antigens known as the rhesus factors.one is either rhesus positive(+) or negative(-).therefore a blood group O+ can donate blood to any rhesus+ blood group and blood group AB+ can receive any rhesus+ blood group.hence to answer your question blood group O can take blood only from an O of the correct rhesus factor
799112
The children would have bloodtype A or bloodtype B.\n\nThe "O" which they get from one parent is merely an absence of the information necessary to have specific antibodies against other bloodtypes.
362634
1.blood type testing\n2, tissue type testing\n3. size of organ\n4. health of donor
582650
http://www.givelife2.org/aboutblood/bloodtypes.asp
161031
A, B, AB, O\nthere are four which can either be negative or positive\n\n\n\nType O– blood is considered the “universal donor” because it can be donated to people of any blood type. Type AB+ blood is considered the “universal recipient” because people with this type can receive any blood type.
247405
Blood types are determined by the type of antigens (protein coating) that you have on the surface of your red blood cells.  \n\nFor the ABO group: \nType A - which has type A antigens\nType B - has type B antigens\nType AB - has both A and B antigens\nType O - has neither A or B \n\nFor the Rh group:\nPositive blood - has the Rh antigen present\nNegative blood - has no Rh antigen\n\nTherefore, type AB+ has all three antigens whereas type O- has none.  There are many other possible combinations (A+, B-, AB-, etc.) depending on the antigens present on the red blood cells.
737686
Right after the donation the blood components are separated into Platelets ( good for 5 days), Plasma ( frozen good for 1year) and red blood cells ( good for 30 days). The testing is done on the extra tubes taking during donation. Testing is done for some chemistry, infectious disease ( HIV, west Nile, Hepatitis B, C, and many more). The blood is typed (A,B,AB,O and RH+/-). It is also tested for poss. bacteria contamination. A complete blood count is performed. After all the test pass acceptability, the components are released to be given. All components are constantly monitored regarding the storage temp.\nBefore blood components are given the recipient is tested to be compatible to the product. ( same blood type and compatible cross match with the donor).\nThe is a lot of checking and double checking involved in blood banking. If you need more or specific info just e-mail me.\nbeen working in blood bank for 20+ years.
166617
They can't be the parents.  The baby is AB, so it has an A allele and a B allele.  Since bloodtypes are codominant, a person will have the B antigen if and only if they have the B allele (so they'll be either B or AB).  The parents are O and A, so neither one of them has a B allele.  The baby had to get it from someone else, so the father isn't the real dad.  Either they took home the wrong baby, or the mom was cheating with someone whose bloodtype was either B or AB.
881358
When I first gave blood, they sent me a donor's card that told me my blood type.  And then they told me on every piece of mail they ever sent me after that.  D@mn type O universal donor nonsense!  They don't tell you right away, though, because they don't do any sort of testing (other than the anemia one) on your blood there.  It takes awhile.  But they do send you something.\n\nYou aren't supposed to give more blood for a couple of months after you donate.  Doctor's offices do take a pretty small sample, though.  However, just to be safe, I'd wait to give until after the physical, and ask my doctor while I was there.
818332
I believe it is a personal choice, I give blood as i am B positive, I am also on the bone marrow transplant reg, i have left my innards to ever who wants them,  Over the years I have donated over 50 pints of blood.\nYour question is very deep, peoples beliefs are precious to them, think of all the people that want to donate, blood and organs can not because of health issues and religion.\n Two questions for you do you give Blood/plasma are you on the donor register,\nAs my friend can not give blood anymore every other pint i donate i do it for her.