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

Prepare for the AAB Medical Technologist (MT) Generalist Exam with flashcards and multiple choice questions. Each question includes hints and explanations to boost your understanding. Get exam-ready now!

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.

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