Download a copy of "Facts and Information for RHD Genotyping"

Rh typing is a standard part of a woman’s first prenatal visit. Sometimes, though, the results are anything but standard. Anywhere from 2 to 4 percent of women can type as both Rh positive (D+) and Rh negative (D-). 

Fill out the form below to download "Facts and Information for RHD Genotyping to manage pregnant women and transfusion recipients with weak or discrepant D typing," a tip sheet created by New York Blood Center that summarizes the reasons for this discrepancy and the proposed solution.