Had a range of blood tests done last month, some related to thyroid. (Managed to get print-out without paying the fee the receptionists normally demand.)
I have been taking 75 mcg levothyroxine for more than two years (an increase from original 50 mcg started more than a decade ago).
Blood was taken at 9 am, 28 hours after previous levo dose. Results for thyroid:
serum TSH level 1.41 mlU/L (0.34 - 5.60)
serum free T4 level 13.8 pmolL (7.50 - 21.10)
What should I learn from this?