Ive received my blood test results from Blue Horizon this morning and Im very concerned.
I take T3 and have done for about 2 years. My levels have never been amazing but the last test I did, the T3 reading was above the range ie it was something like 12.3 and the top of the range was 6.8.
So, I halved my dose of T3 and a couple of months later have done another test. The results arrived this morning and I don't quite know what to do about them.
These are the figures: I know that taking T3 you should disregard TSH and T4 figures but I'll show them anyway.
FREE T4 L. 6.28 Range 12 - 22 (I know this should be low because of T3 only medication).
FREE T3 H. 22.87 Range 3.1 - 6.8
TSH High 6.68 Range 0.27 - 4.2
T4 TOTAL L 47.3 Range 64.5 - 142
Immunology
Anti-Thyroidperoxidase abs H 326.5 Range <34
Anti-Thyroglbulin Abs H 462.3 <115
Help me please. Is the "free" levels something different to what I normally ask for with the results and any suggestions as to what I should do now.
Many thanks
Susan
Could be a number of things. Assuming you have not had similar results before narrows it down.
Did you take your thyroid medication (liothyronine?) within a few hours of drawing the blood? This would give spurious results. I think you should allow at least three hours between taking T3 and doing a blood test. I know a lot of patients would suggest a longer time.
Was this a finger prick test? It's only my view but I do not trust these to be accurate as there is too much scope for mistakes.
I can't think of any other reason you would get a single result with high fT3 and high TSH.
Hi
Thank you for your response. I do know about taking medication etc before the test and for that reason I hadn't taken anything since the day before.
Also, I used the same method and the same company for the testing. I dont understand the dramatic increase when I had actually have halved the dose since my last test in July (that was a little higher than it should have been ie 12.6) which is why I halved the dose.
Any suggestions welcomed.
A bit scared now and assume I shouldnt take any T3 for a couple of days and then speak to someone.