Expert Rev of Obstet Gynecol. 2012;7(3):269-279. In summary, excess levels of urobilinogen and bilirubin in the urine may signal liver disease, and more research is needed to correlate these ...
whereas adult hemoglobin is released. The mother's blood is drawn and a sample smear prepared and exposed to an acid buffer. Fetal RBCs remain intact, and the volume is calculated from the smear.