1. Presented by Eric A. Gehrie, MD and prepared by Lorraine N. Blagg, MA, MLS(ASCP)SBB

Clinical Vignette

The patient is an adult female, previously pregnant, who was seen at an obstetrics clinic during the second trimester of her current pregnancy. She has a history of a positive direct antiglobulin test (DAT) with anti-IgG only, as well as a warm reactive autoantibody and an inconclusive antibody. The patient typed as A Positive in the past. The initial panel was all reactive using solid phase red cell adherence assay (SPRCA) and she has a positive DAT with IgG only. An allogeneic adsorption was performed based on the patient's RBC antigen genotype to exclude the presence of underlying alloantibodies.



Question:
What is the result of the allogeneic adsorption?