Two lots of test results from same blood draw - but the FT4 results do not match

[Fifteen]

Hi, I recently organised to do blood tests through Blue Horizon then my GP said I needed to do some, so I had the blood taken for both at the same time.

My relevant Blue Horizon test results are:

TSH <0.05 [0.27 - 4.20]

FT3 4.85 [3.1 - 6.8]

FT4 21.3 [12.0 - 22.0]

T4 Total 107.0 [66 - 181]

Ferritin 116.0 [13 - 150]

Magnesium 0.96 [0.66 - 0.99]

Vitamin D 143 [76 - 200 Optimal]

Vitamin B12 488 [145 - 569]

Serum Folate 13.60 [8.83 - 60.8]

Cortisol 382.0 [166 - 507]

My NHS results are

TSH <0.01mU/L [0.3 - 4.3]

Serum FT3 4.4pmol/L [2.4 - 6.0]

Serum FT4 14.2pmol/L [9.0 - 23.0]

Am I correct in thinking that the FT4 results differ significantly?

Have you any advice on future medication? I sometimes feel tired but otherwise am feeling better than I have for a long time.

I have a phone appointment with a newly appointed GP on Tuesday morning.

All advice welcome and appreciated

Present Medication: Levothyroxine 125mcg; Thybon 20 Henning 15mcg [taken as 5mcg x 3] (liothyronine).

[Fifteen]

Thanks, Jonathan. I have found Private to be no better than NHS since the 'edict' that liothyronine cannot be prescribed. My private consultant, who three years earlier had told me where to buy it overseas, became one of the most vocal in support of the edict.

Daily, I take 125 mcg levothyroxine and 15mcg of Thybon 20 Henning (3 x 5 mcg).

[Fifteen]

Will appreciate that.

[Fifteen]

Hi Jonathan, would you send me the link to the website you mentioned. Is her waiting list still two months?