What is the Rh factor called?

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Multiple Choice

What is the Rh factor called?

Explanation:
The Rh factor refers to the D antigen on the surface of red blood cells. The D antigen is what determines Rh positivity (present) or Rh negativity (absent). It’s the defining component of the Rh blood group system and is the most clinically important for blood transfusions and pregnancy management. The other options relate to the ABO system (A and B) or to the ABO types in general (O is a type, not an Rh antigen), so they don’t describe the Rh factor.

The Rh factor refers to the D antigen on the surface of red blood cells. The D antigen is what determines Rh positivity (present) or Rh negativity (absent). It’s the defining component of the Rh blood group system and is the most clinically important for blood transfusions and pregnancy management. The other options relate to the ABO system (A and B) or to the ABO types in general (O is a type, not an Rh antigen), so they don’t describe the Rh factor.

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