Blood test results

[PurpleOliver]

Hello. Could someone interpret my recent blood results, please?

TSH 1.33

TSH levels normal ( normal range 0.27 - 4.2 mU/L

FT4 14.4

FT4 levels normal ( normal range 12 -22 pmol/L

FT3 4.1

FT3 levels normal ( normal range 3.1 -6.8 pmol/L

I started on 5g of t3, once a day, after my last test results showed that I wasnt converting t4 to t3 very well. I then increased it to 6.5, due to cutting a 20g tablet in four. I am still on 100mcgs of thyroxine. Am I on the right track, or have my wheels come off?

TIA

[SlowDragon Administrator]

was test done as recommended

Recommended that all thyroid blood tests early morning, ideally just before 9am, only drink water between waking and test and last dose levothyroxine 24 hours before test

This gives highest TSH, lowest FT4 and most consistent results. (Patient to patient tip)

T3 ….day before test split T3 as 2 or 3 smaller doses spread through the day, with last dose approximately 8-12 hours before test

Free T4 (fT4) 14.4 pmol/L (12 - 22) 

Ft4 only 24.0% through range

Free T3 (fT3) 4.1 pmol/L (3.1 - 6.8) 

Ft3 only 27.0% through range

If you tested as recommended these results suggest you have room to increase levothyroxine OR T3

Have you tested vitamin D, folate, B12 and ferritin

What vitamin supplements are you taking

[PurpleOliver in reply to SlowDragon]

Yes, bloods done as recommended. Sorry, meant to put 25mcg tablet in quarters. I did wonder whether I should increase t4. Will have to do it by myself as drs wont prescribe as my levels are 'normal' according to them. I'm taking B complex, selenium, vit D/K2 combo, Magnesium and Omega 3 capsules.

[Jaydee1507 Administrator]

If you cut a 20mcg T3 tablet in 4 you get 5mcgs. Did you add another 5mcgs so your total dose is 10mcgs?

When did you take last dose of Levo & T3 prior to this test?

For T3 1 day dosing, day before test split dose into 2 or 3 and take last portion 8-12hrs before blood test due.

You're currently well within limits and look under replaced.

[PurpleOliver in reply to Jaydee1507]

So should I increase my t4 by 12.5 first and see how I go?

[SlowDragon Administrator in reply to PurpleOliver]

I would increase levothyroxine first

[PurpleOliver in reply to SlowDragon]

Yes, thats what I was wondering too. I tried the t3 because the test at the eend of last year said I was low on t3, suggesting I wasnt converting well. Recent test shows and improvement, I believe.

[Jaydee1507 Administrator in reply to PurpleOliver]

If you answer the questions I can tell you.

[PurpleOliver in reply to Jaydee1507]

Ive answered questions above. I havent added anymore t3, so still taking 6.5mcgs. Stopped it two days before blood draw. Levo the morning before.

[Jaydee1507 Administrator in reply to PurpleOliver]

As I said, a quarter of a 20mcg T3 tablet of 20mcgs is 5mcgs so not sure where 6.5mcgs is coming from.

If you stopped T3 2 days before blood draw then your FT3 result is a false low.

Best to increase levo by 25mcgs or 12.5mcgs.

[PurpleOliver in reply to Jaydee1507]

Its because the tiromel tabs are 25 mcg.

[PurpleOliver in reply to Jaydee1507]

Ill add the t4. Thank you both for your help. Much appreciated.

[SlowDragon Administrator in reply to PurpleOliver]

Stopped it two days before blood draw. Levo the morning before.

Then test doesn’t tell you anything about your Ft3 level

Last dose T3 should be 8-12 hours before test