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abstractpubmed· Abstract 2020· item PMID:32526232
Heme Catabolism and Bilirubin Production in Readmitted Jaundiced Newborns. We measured end-tidal CO levels in 50 jaundiced newborns readmitted for phototherapy at age 54-244 hours. The median end-tidal CO level was 1.55 ppm, suggesting that hemolysis is not the primary contributor to the hyperbilirubinemia in many readmitted newborns.