Abstract
Cord serum concentrations of zinc, magnesium and copper were determined in 90 healthy term infants. The infants were divided by peak bilirubin values into an icteric group (peak bilirubin > 136 mumol/l) (n = 21) and a control group (peak bilirubin < or = 136 mumol/) (n = 69). Mean cord serum zinc, magnesium and copper concentrations in the icteric group did not differ from those of the control group. Furthermore, no significant correlation was found between peak serum bilirubin concentrations and cord serum concentrations of these three elements. We conclude that cord serum concentrations of zinc, magnesium or copper are not useful in predicting which neonates will develop hyperbilirubinemia.
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