O- blood is the universal donor type because it can be used for anyone. AB+ blood can receive any type of blood, making it the universal recipient. Blood types need to match, or the immune system will ...

Dear Dr. Roach: My wife is Rh negative, and I am Rh positive. Our baby (fetus) is positive. I am worried about my wife and my baby. Is this dangerous? What can be done? This is her second pregnancy. — ...

The mysterious Rh factor-in human blood had disturbed the serenity of many a mother-to-be. For if a wife’s blood were Rh negative and a husband’s Rh positive, their child might be stillborn, or born ...

A person's blood type is determined by "the presence or absence of certain antigens – substances that can trigger an immune response if they are foreign to the body," according to American Red Cross.

Blood usually falls into a few widely recognized categories or types, based on the proteins that are expressed on the surface of red blood cells. For example, A or B antigens may be present there, ...

Perhaps, many are conversant with the practical concept of genotype or genotypic compatibility. Either via counseling, class lectures, health awarenesses, personal research etc, anyone would ...