I sent a T4/T3/TSH fingerprick test back to Medichecks. It was the very hot week in early September... 29C degrees here in Norfolk. Medichecks received it the next day. Test done per our recommended conditions. Results were:
T4 19.0 (12 - 22)
T3 6.1 (3.1 - 6.8)
TSH 0.008 (0.27 - 4.2)
My T4 and T3 are consistently less than this (approx t5 15, T3 4.8, and TSH 0.01)
I'd also had a 3 hour general anaesthetic for feet surgery 4 weeks before, and was very inactive (had my feet elevated for 23 hours a day!)
Does anyone know if either very hot weather or a general anaesthetic/surgery can affect results?
Thanks!