T4 Over range

[Loafinabout]

In April I developed AFibrillation which is persistent and am currently awaiting an echocardiogram prior to having a cardioversion (private cardiologist)

On 24 April my (NHS) Thyroid results were:

TSH 0.01 Range 0.27-4.2

Free T3 5.2. 3.1 - 6.8

Free Thyroxine 22.9. 12-22

As I still experience many symptoms of Hypothyroidism I am wondering if this test result could point to a problem with the Pituitary gland and AFib has been an outcome? Needless to say the nurse who ‘manages’ my hypothyroidism (🥺) immediately reduced my Thyroxine. I have just ordered a private blood test to monitor the current situation but would welcome any thoughts. My concern is if it is an undiagnosed pituitary related problem is there a possibility I continue to be affected by AFib? (I realise AFib can return despite treatment but obviously want to eliminate any other health concern I might have that would almost guarantee it reoccurring).

[Lalatoot]

I don't think your body likes the high ft4 level. High ft4 results in low and suppressed TSH. However if you reduce levo and ft4 you will also reduce ft3 which is not too high. As you still have symptoms I would suggest that you need this higher.The way to reduce ft4 and increase ft3 is to be on a combo of levo and liothyronine.

[Loafinabout in reply to Lalatoot]

Thankyou for this and yes I agree with your recommendation Re liothyronine - it’s on a par with the Holy Grail as far as the NHS is concerned!