23rd May 2025

A 34-year-old female is currently 20 weeks pregnant and presents for follow-up review.

A 34-year-old female is currently 20 weeks pregnant and presents for follow-up review.  She initially presented  with increased weight loss with increased appetite, and a urine pregnancy test at the time was positive. Additionally, she had heat intolerance and was sweaty most of the time. Anti-TRAbs were positive. TSH was low with high free T4. She was started on PTU, but no improvement was noted on maximum doses. What is the next most appropriate plan for management?

Select the SINGLE most appropriate option from the list below. Select ONE option only.