a child passes meconium in the first 24 to 48 hours and it is written here that the effect of the mother’s thyroxine lasts for the first week of the baby’s life then in that duration the baby must pass meconium then why is there a delay in the passage of meconium?
This fact is not applicable for all cases of congenital hypothyroidism.
few babies do have a presentation with delayed passage of meconium.