What is the Rh status of a person who possesses the D antigen?

What is the Rh status of a person who possesses the D antigen?

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

Answer: (A)

A person who possesses the D antigen is classified as Rh-positive. The Rh blood group system includes several antigens, with the D antigen being the most significant. Individuals who have the D antigen on the surface of their red blood cells are considered Rh-positive. This designation is important, particularly in blood transfusions and pregnancy, because Rh status can affect compatibility between blood types. In contrast, individuals who do not possess the D antigen are classified as Rh-negative. The relevance of the ABO blood system and specific blood group categorizations such as ABO-negative or B-negative can help provide additional context for blood type compatibility but does not directly influence Rh classification related to the D antigen. Thus, understanding the presence of the D antigen is crucial to determining Rh status.

A person who possesses the D antigen is classified as Rh-positive. The Rh blood group system includes several antigens, with the D antigen being the most significant. Individuals who have the D antigen on the surface of their red blood cells are considered Rh-positive. This designation is important, particularly in blood transfusions and pregnancy, because Rh status can affect compatibility between blood types.

In contrast, individuals who do not possess the D antigen are classified as Rh-negative. The relevance of the ABO blood system and specific blood group categorizations such as ABO-negative or B-negative can help provide additional context for blood type compatibility but does not directly influence Rh classification related to the D antigen. Thus, understanding the presence of the D antigen is crucial to determining Rh status.