Effect of in utero exposure of iodinated intravenous contrast on neonatal thyroid function.

Purpose: Administration of radioactive iodine to a pregnant woman for thyroid ablation has been shown to affect neonatal thyroid levels. Thus, there is a theoretical risk in affecting a neonate's thyroid level upon birth with prior administration of intravenous contrast containing iodine to a pregnant woman during a computed tomographic scan. However, there is no literature to support this theoretical risk.