What term is used for individuals whose cells express the D antigen?

What term is used for individuals whose cells express the D antigen?

• A. Rh-positive
• B. Rh-negative
• C. Rh-null
• D. ABO-compatible

Answer: (A)

Individuals whose cells express the D antigen are referred to as Rh-positive. The Rh blood group system is defined by the presence or absence of the D antigen on the surface of red blood cells. When the D antigen is present, the individual is classified as Rh-positive, indicating that they can produce antibodies against the D antigen if exposed to Rh-positive blood through transfusion or pregnancy with an Rh-positive fetus. The distinction of Rh-negative is used for individuals who do not express the D antigen, meaning they cannot produce the antibody unless they are sensitized through exposure. Rh-null refers to individuals who lack all Rh antigens, not just the D antigen, making it an even rarer condition. ABO-compatible refers to a blood group compatibility based on the ABO blood system and does not directly relate to the presence of the Rh factor. Thus, whent it comes to the expression of the D antigen, the term used for these individuals is indeed Rh-positive.

Individuals whose cells express the D antigen are referred to as Rh-positive. The Rh blood group system is defined by the presence or absence of the D antigen on the surface of red blood cells. When the D antigen is present, the individual is classified as Rh-positive, indicating that they can produce antibodies against the D antigen if exposed to Rh-positive blood through transfusion or pregnancy with an Rh-positive fetus.

The distinction of Rh-negative is used for individuals who do not express the D antigen, meaning they cannot produce the antibody unless they are sensitized through exposure. Rh-null refers to individuals who lack all Rh antigens, not just the D antigen, making it an even rarer condition. ABO-compatible refers to a blood group compatibility based on the ABO blood system and does not directly relate to the presence of the Rh factor. Thus, whent it comes to the expression of the D antigen, the term used for these individuals is indeed Rh-positive.