Our immediate past episode summarized a validation study of cell-free DNA (cfDNA) isolated from maternal plasma for fetal RBC genotyping in alloimmunized patients. And now, in this episode, we will highlight a BRAND NEW ACOG Clinical Practice Update on this very subject! YEP... we now have new ACOG guidance regarding using maternal derived cfDNA for fetal RBC antigen detection as an option for care in alloimmunized pregnancies. This is how "medicine moves fast"! Listen in for details.