A cord blood sample was sent to the blood bank for a type and DAT. Cells were washed six times with saline before testing. The forward grouping typed as an O. There was no agglutination with anti-D and washed cord cells. The DAT was 3+ with polyspecific AHG. What is the Rh type of the baby?

Question

Quizplus · Accepted Answer

The Rh type cannot be determined because the strong positive DAT indicates that the baby's red cells are coated with antibodies, which can interfere with the detection of the D antigen.

A Cord Blood Sample Was Sent to the Blood Bank