In my own dog having Immune Mediated Hemolytic Anemia, I avoid sulfa drugs, as they can leave residues on the outer surface of red blood cell membranes which then triggers the immune system to destroy the cell. (patrickmahaney.com)
The expert answers: «Having Rh negative blood means that a protein, the D antigen, is not present on the surface of the red blood cells. (sheknows.com)
According to the American Pregnancy Association, the Rh factor is a specific type of protein on the surface of red blood cells. (doctor-info.website)