What was the DAT result? If it was weakly or 1+ positive, you cannot accept the Rh result. At our facility, if the mom is Rh Neg and the baby initially types Rh Neg, with the DAT positive, we cannot perform the weak D; we have to send it out to the Reference Lab for testing. If the antigen sites for D are coated already by anti-D, then the baby might type as Rh Neg. The cells need to be eluted, EGA can be used to knock off any antibody and do the blood typing. If the doc doesn't want the baby stuck, we turn out Rh Indeterminate, and recommend the baby be typed later.
Darcy got a reaction from BldBnker in CORD BLOOD NOT MATCHING HEEL STICK TYPEWhat was the DAT result? If it was weakly or 1+ positive, you cannot accept the Rh result. At our facility, if the mom is Rh Neg and the baby initially types Rh Neg, with the DAT positive, we cannot perform the weak D; we have to send it out to the Reference Lab for testing. If the antigen sites for D are coated already by anti-D, then the baby might type as Rh Neg. The cells need to be eluted, EGA can be used to knock off any antibody and do the blood typing. If the doc doesn't want the baby stuck, we turn out Rh Indeterminate, and recommend the baby be typed later.