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Case Study O1 - Figure 3 - Answer (Question 1)

TraQ Program of the BC PBCO

Sunday, 24 June 2018

Case Study O1 - Figure 3 - Answer (Question 1)

What can account for these reaction strengths?

  • Cell #3 being 2+s and other D-positive cells being 2+
  • Cell #5 being w+

Panel cell #3 is positive for both D and E antigens. Other 2+ cells have D only.  As well, the probable genotype of the donor is R2R2, which is known to have more D antigens per red cell.

Cell #5 has only the E antigen and in a single does (E+ e+).