A while back after a blood test, the doctor (not my usual) rang me to tell me I was taking too high a dose and I was to go back to 75mcg daily instead of the 100mcg that I had been on. Some time previously it had been raised because of my tiredness. I’d been fine on 100mcg.
Anyway, I rang my doctor and we agreed that I would take 100mcg from Mon-Thurs., and 75mcg from Fri-Sun. These are the blood test results 8 weeks after starting the new doses. They also tested antibodies this time, and that had never been done before.
Do these results look fine, or does it look as if I really should go back down to only 75mcg Levo daily please? Thank you.
Serum free T4 level - 17.6 pmol/L [9.0 - 19.0]
Serum free T3 level - 4.5 pmol/L [2.6 - 5.7]
Serum TSH level - 0.03 mu/L [0.35 - 4.94] Below low reference limit.
Serum thyroid peroxidase antibody concentration - 9.29 iu/ml [0.0 - 5.9] Above high reference limit.
(The remarks for all tests were - Abnormal, but expected. No further action.)