Hi everyone - My partner just got diagnosed as hypothyroid (still waiting to hear if it is Hashimoto's or just hypo). We're struggling to understand his test results though: TSH 25 (ref range 0.3-4.2) and T4 10.5 (ref range 12-22). It seems the T4 is just a little bit low but the TSH is massively raised! Does anyone understand why a little drop in T4 could be causing a huge rise in TSH? Does it mean the problem is likely to be happening in the T4 to T3 conversion? If so then taking thyroxine (as the doctor has now prescribed) probably won't solve the problem?
Thanks so much for any insights!