Rhesus factor is

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Study for the NHCO Phlebotomy Test. Experience flashcards and multiple-choice questions with hints and explanations. Prepare effectively for your phlebotomy exam!

Multiple Choice

Rhesus factor is

Explanation:
The Rh factor is a protein called the D antigen located on the surface of red blood cells. This membrane protein determines Rh positive or Rh negative status and is what immunohematology tests detect when typing blood. It is not a carbohydrate (ABO antigens are carbohydrate structures on the cell surface), nor a hormone in plasma, nor an enzyme in plasma. Knowing whether the D antigen is present is crucial for transfusion compatibility and for managing pregnancy, where Rh incompatibility between mother and fetus can cause immune reactions.

The Rh factor is a protein called the D antigen located on the surface of red blood cells. This membrane protein determines Rh positive or Rh negative status and is what immunohematology tests detect when typing blood. It is not a carbohydrate (ABO antigens are carbohydrate structures on the cell surface), nor a hormone in plasma, nor an enzyme in plasma. Knowing whether the D antigen is present is crucial for transfusion compatibility and for managing pregnancy, where Rh incompatibility between mother and fetus can cause immune reactions.

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