Hi all - just wondered if anyone had come across this scenario before. I am due to have an arthroscopy (knee surgery). My pre-op assessment included blood tests. My Thyroid results came back as TSH 0.02 (0.27-4.20) and my FT4 8.1 (11-25). They didn't test FT3 even though I take Liothyronine. I take 100mcg T4 and 20mcg T3. I know both results are very low but my endocrinologist has always been OK with that, however, the Anesthetist is refusing to be part of my operation due to the abnormal blood results and won't consider it until my TSH is in range. I feel better when my TSH is suppressed - any ideas?