Embryos & Genetic Testing
TSH prior to FET
Hello, I was wondering what the recommended parameters are for TSH/T4 level prior to FET. I have no issues with thyroid and my most recent TSH level was 3.6 and T4 1.3, just wondering if these are good numbers for… — Julie M.
Dr. Geoffrey Sher answered
Your TSH is modestly elevated. In my opinion this is an indication to evaluate for antithyroid antibodies, which if present, could suggest an underlying autoimmune, immunologic implantation dysfunction linked to activation of uterine natural killer cells (NKa). This should be addressed in advance of undergoing FET in my…