T3 went down should I increase it

[Evie7851]

I just had some labs done and my t3 went down I’m on 112 tirosint and 15 t3 I’m having sweating and increased anxiety but I had some stressful things going on

T3 -2.5 was 3.6 last time range 2.2-4.0

T4 1.2 range 0.7-1.5

Tsh 0.034-range 0.034-.4940

Thanks for the help

[SlowDragon Administrator]

For full Thyroid evaluation you need TSH, FT4 and FT3 plus both TPO and TG thyroid antibodies tested. Also EXTREMELY important to test vitamin D, folate, ferritin and B12

Low vitamin levels are extremely common, especially if you have autoimmune thyroid disease (Hashimoto's) diagnosed by raised Thyroid antibodies

Ask GP to test vitamin levels

Recommended on here that all thyroid blood tests should ideally be done as early as possible in morning and before eating or drinking anything other than water .

Last dose of Levothyroxine 24 hours prior to blood test. (taking delayed dose immediately after blood draw).

This gives highest TSH, lowest FT4 and most consistent results. (Patient to patient tip, best not mentioned to GP or phlebotomist)

If/when also on T3 make sure to take last half or third of daily dose 8-12 hours prior to test, even if this means adjusting time or splitting of dose day before test

Is this how you do your tests?

Private tests are available as NHS currently rarely tests Ft3 or thyroid antibodies or all relevant vitamins

List of private testing options

thyroiduk.org/getting-a-dia...

Medichecks Thyroid plus vitamins including folate (private blood draw required)

medichecks.com/products/thy...

Thriva Thyroid plus antibodies and vitamins By DIY fingerpick test

thriva.co/tests/thyroid-test

Blue Horizon Thyroid Premium Gold includes antibodies, cortisol and vitamins by DIY fingerprick test

bluehorizonbloodtests.co.uk...

If you can get GP to test vitamins and antibodies then cheapest option for just TSH, FT4 and FT3

£29 (via NHS private service ) and 10% off if go on thyroid uk for code

thyroiduk.org/getting-a-dia...

monitormyhealth.org.uk/thyr...

Medichecks - JUST vitamin testing including folate - DIY finger prick test

medichecks.com/products/nut...

Medichecks often have special offers, if order on Thursdays

[Evie7851 in reply to SlowDragon]

I took tirosint 24 hours ahead and last t3 was about 15 hours ahead

[Lalatoot]

Evie we recommend the last T3 dose 8 - 12 hours before bloods so you have a false low reading for FT3.

[Evie7851 in reply to Lalatoot]

Would it make that big of a difference between 3.6 and now 2.4