The standard tests for iron in premature babies are actually pretty bad at telling doctors when the baby needs help.
This study found that the biomarkers doctors rely on don't match up with a baby's actual iron needs in real-time. Because different markers respond at vastly different speeds, the 'gold standard' tests might be leading to treatments that are either too early or too late.
Changes in iron biomarkers in response to intravenous iron supplementation in preterm infants
SSRN · 6464206
Objective:Preterm infants often require oral iron supplementation, however due to feeding intolerance or insufficient response to oral iron, intravenous (IV) iron may be needed. This study aimed to characterize timing of IV iron administration and subsequent changes in iron biomarkers.Results:This retrospective cohort study included 52 infants born at <34 weeks’ gestation who received one or more IV iron doses in the University of Washington neonatal intensive care unit (NICU) between September