ANATOMY

Detailed explanation-1: -The Rh factor is an inherited protein that can be found on the surface of the red blood cell. If your blood type is positive, then your blood cells have the Rh protein. If your blood type is negative, then your blood cells lack the Rh protein.

Detailed explanation-2: -Blood types are determined by the presence or absence of certain antigens – substances that can trigger an immune response if they are foreign to the body. Since some antigens can trigger a patient’s immune system to attack the transfused blood, safe blood transfusions depend on careful blood typing and cross-matching.

Detailed explanation-3: -Rh antigens, also called Rhesus antigens, are transmembrane proteins expressed at the surface of erythrocytes. They appear to be used for the transport of CO2 and/or ammonia across the plasma membrane. RBCs that are Rh positive express the one designated D (RhD antigen).

Detailed explanation-4: -A RhD positive (A+) A RhD negative (A-) B RhD positive (B+) B RhD negative (B-) O RhD positive (O+) O RhD negative (O-) AB RhD positive (AB+) AB RhD negative (AB-)