Understanding results : I just had a blood test... - Thyroid UK

Thyroid UK

137,137 members160,815 posts

Understanding results

ABDC profile image
ABDC
7 Replies

I just had a blood test done and my TSH was 2.311; but my Ft3 was 2.0 and Ft4 was 0.59. Can anyone tell me what this means? I have been really anxious and not feeling well.

Written by
ABDC profile image
ABDC
To view profiles and participate in discussions please or .
Read more about...
7 Replies

You need to add the ranges to your post - the figures in brackets after the number you posted. Ranges differ from labl to lab and even more from country to country so the figures are meaningless without the ranges

ABDC profile image
ABDC in reply to Angel_of_the_North

Ft4 range is 0.8-1.8

Ft3 range is 2.0-4.4

TSH range is 0.3-4.2

Angel_of_the_North profile image
Angel_of_the_North in reply to ABDC

So your FT4 is under range at 0.59, your free t3 is at the bottom of the range at 2.0 and your TSH is slightly higher than most healthy people at 2.3. You'd expect a much higher TSH level with such low Ft4. This suggests that you might have a pituitary or hypothalamus problem - everything low - also called central or secondary hypothyroidism. Usually needs referrral to an endo for treatment as doctors aren't trained to recognise anything except primary hypothyroidism.

ABDC profile image
ABDC in reply to Angel_of_the_North

What does secondary hypothyroidism mean?

Angel_of_the_North profile image
Angel_of_the_North in reply to ABDC

It means that the pituitary gland is damaged in some way so it can't or won't produce enough TSH to get your thyroid hormones high enough. The thyroid itself it usually fine

ABDC profile image
ABDC in reply to Angel_of_the_North

😫

ABDC profile image
ABDC in reply to ABDC

Thank you for your help.

You may also like...

Understanding results

Since having my thyroid removed in September 2021, I've had a number of blood tests including some...

Understandings Results

private blood test for thyroid. Please can someone help with the results and what they mean. TSH...

Understanding results

were : TSH 0.82 ANTI-TPO 949.00 H FERRITIN 38 FT4 18.0 VIT D <20.0L FOLIC 3.2 B12 240 Can anyone...

Understanding results

trust drs ! (Sorry) 😳. TSH 1.35 (0.27 - 4.20) FT4 12.9 (12 - 22) FT3. 4.2. (3.9 -...

Help understanding results

On 22 Feb I had blood test with NHS and it came back free t4 - 10.5 TSH 5.30 Thyroid peroxidase ab