T3 blood results: I have recently had blood... - Thyroid UK

Thyroid UK

137,137 members160,814 posts

T3 blood results

jay-jay profile image
3 Replies

I have recently had blood results as follows:-

Free T3 - 3.6 (3.1 - 6.8)

TSH 0.04 (0.27 - 4.20)

Free T4 - <2 (11.0 - 25.0)

I currently only take T3 but I have been suffering with urticaria and angioedema, my dermatologist thinks it could be to do with my thyroid and wants me to go back on t4.

Any help in understanding theses results would be most appreciated.

Thanks Jay-jay 🙂

Written by
jay-jay profile image
jay-jay
To view profiles and participate in discussions please or .
Read more about...
3 Replies
Clutter profile image
Clutter

Jay-Jay,

TSH is suppressed but FT3 is low in range. Most people on T3 only need FT3 higher > 5.0 to feel well. FT4 is below range because you are taking T3 only.

Did urticaria and angiodema develop after you started taking Liothyronine? They can be rare side effects of Liothyronine AND Levothyroxine:

google.co.uk/search?q=urtic...

google.co.uk/search?q=urtic...

jay-jay profile image
jay-jay in reply to Clutter

Hi Clutter,

Thanks for your reply.

I started getting the urticaria last December.

Ive been on the liothyronine for about 7 years, (Levothyroxine for 12 years before) and never had problems but had a very bad year starting last May 2015.

I had a seizure, then a suspected seizure/syncope/blackout (not diagnosed) in August with a suspected heart attack which was diagnosed as myocarditis. Then the Urticaria started in December.

Im currently waiting to see a rheumatologist for RA, RF came back negative, but CRP results were 36.

Ive got a lot going on and seem to be going round in circles. Im trying to understand all blood tests and keeping copies but I don't know how to interpret the results.

My GP wants to take me off T3 and start over on T4 to see if this stops the urticaria. I will try anything to see if it helps, but when I was on T4 it never really made me feel better.

Sorry for the long post.

Jay-Jay :)

Clutter profile image
Clutter in reply to jay-jay

Jay-Jay,

Try negotiating a resumption of T3 or T3+T4 if you don't feel well on Levothyroxine and if it doesn't improve urticaria and angioedema.

You may also like...

Blood results, Advice with T3

2017 with hypothyroidism with bloods of TSH 4.38 range 0.3-3.94 Free T4 11.0 range 12.3-20.2 and...

Blood results on T3 only

TSH 0.55 (0.3. - 4.2) free thyroxine 1.1 (12 - 22) T3 4.5 (3.1 - 6.8) My GP says the TSH and

Blood results since adding t3

Here's the blood results from Tuesday.. TSH 0.22 (0.35-4.74) T4 11(9-19) T3 3.9(2.6-5.75) Dr has...

Blood results after adding T3

These are my results before starting the T3. TSH 0.707 (0.27-4.2) FT3 3.47 (3.1-6.8) FT4 17.700...

Blood results, T3 advice & pregnancy

Just called for last weeks thyroid results. FT4 19.7 / TSH 1.19 / T3 2.0 Sorry don't have ranges!...