Identification of infants at risk of hyperthyroidism

Any infant whose mother has an active or historic diagnosis of hyperthyroidism or any mother with a previous infant with neonatal hyperthyroidism is potentially at risk of thyrotoxicosis.

Any infant whose mother has positive TRAb during pregnancy.


Recommendation

For these women, maternal TRAb levels should be determined between 20-24 weeks gestation.

  • Maternal TRAb negative – no specific follow-up necessary.
  • Maternal TRAb positive or unavailable – consider infant high risk of thyrotoxicosis.