Can anybody help me with my t3 results?

[kissemiss]

08.30 last week I had my blood test. I am on my absolute minimum 2x20 a day. My old gp has retired but changed my prescription before he left to 20+10 a day which I just could not survive on so I stuck to 2x20.

Test result:

TSH 0.23 mu/L (0.35 – 4.9)

free T3 2.9 pmol/L (2.4 -- 6.0)

Based on the above test result I have been asked to make a telephone appointment with a new doctor because it looks as if I am over medicated and need to lower my t3.

I desperately need a clear bit of research which explains that if you are on t3 only the blood test result t3 ought to be in the middle of the range or slightly above . How can I explain about TSH?

[Lalatoot]

Maybe you can't explain about TSH but you can explain about your ft3 still being low in range as shown by the range

[tattybogle]

you may find something in here thyroidpatients.ca/home/sit... thyroidpatients.ca/home/site-map/

this one perhaps ? thyroidpatients.ca/2019/10/... /the-tsh-t3-disjoint-in-thyroid-therapy/ ......might reference a study that you could use .

sorry i can't find the best one .. she's done so many , and my 'filing' system is terrible

[kissemiss in reply to tattybogle]

Thank you so much these useful and relevant references.

[tattybogle in reply to kissemiss]

Also ,You might find these posts useful in the next round of 'low TSH' conversations with GP. They contain some interesting discussions and also links to evidence from a large long term study which found risks of TSH between 0.04 and 0.4 are *no greater than risks of 0.4 to 4 ( *roughly* i'm not awake enough to qoute it accurately just now )healthunlocked.com/thyroidu... ~tsh-and-the-more-mature

healthunlocked.com/thyroidu... ~risks-of-suppressed-tsh-analysis?

[shaws]

GPs are not well-trained, it seems to me, as they seem to think that if our TSH is very low that we've suddenly become hyPERthyroid when we have hyPOthyroidism.

Did you get the earliest appointment (fasting -you can drink water)? TSH is highest early a.m. so that's why we advise an early a.m. blood test with a 24 hour gap between last dose and test and take it afterwards. We don't want doctors to reduce our dose to try to fit the TSH into a slot. TSH is from the pituitary gland which tries to raise thyroid hormones and that's why it climbs higher, before we're diagnosed.

Your FT3 is bottom of the range and, no, he shouldn't reduce your dose. They seem to be afraid of a TSH which is low as the seem to think we've now become hyPERthyroid but that's not the case. TSH is from the pituitary gland, not the thyroid gland, and it rises when our body needs an increase in dose.

Always get a print-out of your results for your own records and post on this forum if you have a query.

[kissemiss in reply to shaws]

My test was at 8.30 am on an empty stomach. I normally take my dosage am but this time I took half the dosage 12 hours before the test.