[Erythrocyte bilirubin: practical implications of variations in concentration (author's transl)]

The values of red blood cell bilirubin and unconjugated plasma bilirubin have been measured simultaneously in 31 blood samples of 21 new-born infants with deep jaundice. The methods of measurement used by the authors have proved quite reliable and there is good correlation between both values. The concentrations rise together with the bilirubin/albumin molecular ratio. Nevertheless even with a low ratio, the red blood cell bilirubin rises to high levels when acidosis is present.