There are about 45 different Rh antigens, the most important of which is the D-antigen.
Rh antigen, which is also called D antigen, indicates if the blood type is positive or negative. The presence of this antigen indicates the patient is Rh positive, the absence of this antigen reflects a blood type of Rh Negative. For example, if a person is O Positive, the Rh antigen is present.
Red blood cells with an antigen on their surface are said to be Rh positive, Rh+. Rh negative, or Rh-, do nothave the surface antigen.
Rh is an antigen. If you have the antigen, your blood type is A+, B+, AB+, or O+. If you don't have the antigen, your blood type is A-, B-, AB-, or O-. People WITH the Rh antigen, can receive from/give to people with Rh+ or Rh-. People WITHOUT the Rh antigen, can ONLY receive from/give to people with Rh- blood. (meaning people without the antigen) If Rh- and Rh+ blood comes in contact, the Rh- will produce antibodies towards Rh+, and at the second contact with the blood, will cause agglutination.
Rh is an antigen. If you have the antigen, your blood type is A+, B+, AB+, or O+. If you don't have the antigen, your blood type is A-, B-, AB-, or O-. People WITH the Rh antigen, can receive from/give to people with Rh+ or Rh-. People WITHOUT the Rh antigen, can ONLY receive from/give to people with Rh- blood. (meaning people without the antigen) If Rh- and Rh+ blood comes in contact, the Rh- will produce antibodies towards Rh+, and at the second contact with the blood, will cause agglutination.
Having the Rh antigen protein in blood makes you RH factor positive.
Rh blood type is determined by the presence or absence of the D antigen. People who are Rh positive have the D antigen and those that are Rh negative lack this. Some people have a variant of the D antigen, called Du. Presence of Du antigen causes lab results to report the blood type as Rh negative, although the patient behaves as an Rh positive would. Du negative means a "true Rh negative" result.
The red blood cell antigen named after the rhesus monkey is the Rh factor or Rh antigen. It is an important antigen in blood transfusions and plays a role in hemolytic diseases of the newborn when an Rh-negative mother carries an Rh-positive fetus.
The O antigen is not an antigen that may be found on the surface of an erythrocyte. A and B antigens are present in the ABO blood group system, while the Rh antigen is part of the Rh blood group system. O blood type individuals lack A and B antigens on their red blood cells.
People with different blood types have proteins specific to that blood type on the surfaces of their red blood cells (RBCs). Rh factor "Rhesus factor" is type of antigens on the human blood cell. The presence of this antigen in human blood given (+) besides it's blood type. The absence of this antigen is given (-) besides blood type. For example A- or A+.
The D antigen is considered the major antigen of the Rh system because it is the most immunogenic component, meaning it is the most likely to provoke an immune response when introduced into an Rh-negative individual. The presence or absence of the D antigen determines a person's Rh blood type, which is crucial for blood transfusions and pregnancy, as Rh incompatibility can lead to serious complications. Additionally, the D antigen's prevalence in the population makes it a key focus in blood typing and transfusion protocols.
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The most important antigens in the Rh group are the RhD antigen and the RhC, RhE, Rhc, and Rhe antigens. The RhD antigen is the most clinically significant, as the presence or absence of this antigen determines an individual's Rh blood type (positive or negative). These antigens are important in blood transfusions and can cause hemolytic disease of the newborn if not properly matched during pregnancy.