A member asked:

25 yr old f, hyperthyroid and taking carbimazole since 2016 had rai (10mci) 2 weeks ago (stopped carbi before 1 wk). now, ft4 is 3.67 ng/dl and tsh is 0.008 mu/l. do i have to do rai again? should i restart carbimazole? heart rate 120 beats/min?

A doctor has provided 1 answer
Dr. Hiep Le answered

Specializes in Nephrology and Dialysis

Free T4 and TSH were done a little early so free T4 is still high with very low TSH; however, your heart rate is up so you can take beta blocker for heart rate control. If the hyperthyroid symptoms are not under control, low dose of potassium iodine solution (SSKI) can be added because it takes up to 6-18 weeks for the ablation treatment having the full effect.

Answered 8/24/2022

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