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There are two parts to a blood type. One is the letter, A,B,AB, or O. This is the major part of the blood type. The other or minor part is the Rh type, which the A,B,AB, or O part is either positive or negative. Let me explain. The A or B or AB part of the blood type is called an antigen. It is inherited from your parents. The +/- part of the equation is call the Rh or "Big D" antigen. It is also inherited. Most likely, if one of your parents were + for Rh, then the offspring will be also. This is a general explanation.

The clinical significance of the Rh factor appears when a mother-to-be in her 28th week of pregnancy comes to the clinic and discovers that she is Rh - (particularly O blood type) and there is a chance that the baby growing in her womb is Rh +. The difference in their Rh factors would cause mom's immune system to take action; it would try to attack the baby (Rh Hemolytic Disease of the Newborn) causing anemia in the baby. As the baby's blood circulates through mom, there is a good chance that the bilirubin from the baby would accumulate in mom and she may become jaundiced. To prevent such things from happening, mom would be given prophylactic treatment (anti-RhD IgG immunoglobulin) during her 28th week of pregnancy.

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15y ago

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What is blood type A positive plus A negative equal?

Blood type A positive plus A negative equals blood type A positive.


What does blood type OE stand for?

There is no blood type OE. There are 8 different blood types, A positive and negative, B positive and negative, O positive and negative, and AB positive and negative.


What is the difference between positive and negative b blood type?

Human blood has a protein (rH). If you have rH in your blood you have positive blood type, if you are lacking rH you have a negative blood type. Negative blood rejects positive blood because it is lacking the chemical, however positive blood can accept both negative or positive blood.


What type of blood can A blood safely receive?

Type A or Type O Negative can give to positive Positive can not give to negative


Can your blood type change from positive to negative?

No, your blood type cannot change from positive to negative. Blood type is determined by the presence or absence of certain antigens on red blood cells, not by the positive or negative Rh factor.


Can a woman with blood type O-positive and a man with blood type O-positive have a blood type A-positive child?

Yes. My mother is O positive and my father is O negative and I am O negative


Can a negative blood type and a positive blood type parent a negative blood type child?

Yes, it is possible for a negative blood type parent and a positive blood type parent to have a negative blood type child. This can occur if the positive parent is heterozygous for the Rh factor gene, allowing for the possibility of passing on a negative Rh factor to the child.


What is the difference between negative and positive blood type A?

The Rhesus factor, also known as the Rh factor, is an antigen that exists on the surface of red blood cells. People who have the Rhesus factor are considered to have a positive blood type. Those who don't have the antigen are considered to have a negative blood type.


Can a man with blood type a negative have a child with a lady with blood type a positive?

Yes. My mother is O positive and my father is O negative and I am O negative


If the mother has B positive blood and the father has O negative what would the child's blood type be?

B positive or negative or, O positive or negative.


If you have a mom with blood type A plus and a dad with blood type A plus what blood types could you have?

You could be A positive, A negative, O positive or O negative.


Can negative blood type parent and positive blood type parent have an Rh negative blood type child?

yes, absolutely