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Blood Group

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What is a blood group?

The ABO blood group system was discovered by Karl Land Steiner in 1901.

Red blood cells or erythrocytes are present in the blood and contain certain proteins on their surface. These proteins are called antigens. The plasma which is the liquid part contains antibodies which will attack certain antigens if they are present. There are various types of red blood cell antigens - the ABO and rhesus types are the most important. By the time a person is six months old, he naturally will have developed antibodies against the antigens his red blood cells lack.

ABO Blood Group System


A blood group individuals will have type A antigens on the surface of red blood cells and anti-B antibodies in plasma. There are about 20 different subgroups of which A1 and A2 subtypes are the most common.

B blood group individuals will have type B antigens on the surface of red blood cells and anti-A antibodies in your plasma.

AB blood group are those who will have type A and type B antigens on the surface of red blood cells and no antibodies to A or B antigens in plasma.

O blood group are those who will have neither type A or type B antigens on the surface of red blood cells but will have anti-A and anti-B antibodies in plasma.

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My mother blood group B and my father is A then my blood group is O HOW IS POSSIBLE?
gayatri27 Thursday, April 10, 2014
It seems "A" can be genetically AO, and "B" can be BO, such that the offspring, which gets one letter from each parent, can be OO.
Guest Thursday, May 15, 2014
My father -o grp my mother _b grp am I possible ab group have check various many possible ans please verify thks
jensen Tuesday, December 31, 2013
My Mom and Dad are A blood group. But I am A-ve! Is it possible ?
raghav721 Friday, March 22, 2013
Hi im a 32 year old black make and I have type A2 blood type can someone explain to me about that blood type..
asia31 Friday, September 28, 2012
I wish to know the procedure or the process of testng the Blood Group
Rlodha Sunday, September 16, 2012
hi, im O neg n my baby is O pos, what is her father's blood type, can u tell by calculation?
cady26 Thursday, April 12, 2012
Her father's blood type can be A pos, B pos or O pos
I_am_Sam Thursday, February 21, 2013
helloo, i am 21 years old and my blood group is B-. what are the problems associated with this blood group. and with what other blood groups is mine compatible with?
Asma.T Monday, March 19, 2012
there is no reply to my question???
Asma.T Friday, April 13, 2012
actually there's no problem associated with ur blood type but since u are Rh[negative] there are instance/s that ur baby can acquiered Hemolytic disease of the newborn (erythroblastosis) if ur husband is Rh( positive)...there are 4 major blood type A, B ,O, and AB. in ur case, blood type O and B are compatible in ur blood type but we have to consider the other factors that some blood type even they are compatible each other, there are many risk behind it.
NoarPol Thursday, July 12, 2012
Cross matching is never done by this method indeed you have to 1-add one drop of serum or plasma of the patient with one drop of the donor either by MTS system or by tube Mthd. 2-Cheeck if there is any reaction if there is any you have to identify the antibodies at the surfece of the antigen of the RBC. 3. prepare 0.8 blood suspension from the blood of donor against the serum of the patient. 4.Use Mts system for screning of donor with serum of the patient SC1,SC2 against all panel antibodies which is 11 or 16 if there is any reaction with any of the antibodies. 5- do confirm which antibodies and do it again with the same just to confirm. this all before trying to do any x matching still as you have life at your hand so you have to asure that you are doing the right thing . 6-Once you know the antibodies now you can do cross matching .
bigboy Tuesday, March 06, 2012
I DONATED BLOOD AT ONE BLOOD BANK THEY GIVE MY BLOOD GROUP AS O Rh POSITIVE. LATER I DONATED AT ANOTHER BLOOD BANK THEY GIVE MY BLOOD GROUP AS O Rh NEGATIVE IS IT POSSIBLE?
NandkishorAher Wednesday, January 11, 2012
Not possible. May be it is problem with that blood bank. Go for any standadized lab and check your blood group
Shamsheerali Friday, July 06, 2012
i m gonna marry..my blood group is O-ve and my husband's is B ve...is there any problem....
jency Monday, January 02, 2012
no big deal but at 28weeks of your pregnancy go for anti-D [RhoGAM], then at 34weeks somefew weeks before labour and lastly after delivery. if not ur child might suffer from hemolytic disease of the newborn(HDN), this can cause miscarriages, anaemia.
Guest Tuesday, May 06, 2014
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