Hello Pathlabtalk communitiy, I am new to this site. I have a question. I received a cord blood sample that I was not sure what to type as. Here was my work. Any help would be greatly appreciated. Thanks Baby's cord blood was tested from a O Neg mom. Initial cord testing came to A Neg with weak positive DAT. Weak D was performed: Cord=negative, control with 6% albumin=microscopic agglutination What is the correct Rh to the baby RBC?