Will it affect tsh if you wait

[lisan1]

Will it affect the tsh of you wait 12 weeks instead of 6 weeks to have blood drawn after increase in medication ?

If yes, will it be lower or higher at 12 weeks?

Anybody know?

[SeasideSusie Remembering]

lisan1 The idea of having a retest 6-8 weeks after starting Levo or an increase in dose is because it takes 6 weeks to be fully absorbed. Whilst still titrating dose why wait any longer than necessary and prolong the agony if you're not feeling much improvement?

[lisan1 in reply to SeasideSusie]

I'm afraid that they won't increase dose since last tsh was 2.8 on 50 mcg and they werent too happy increasing to 75mcg. I assume tsh will have decreased even more now so will have a hard time convincing them to let my try a higher dose. That's why I want tsh to be as high as possible and if that means waiting a couple of more weeks then so be it.

[Glynisrose]

No.

[LAHs]

Even if it does affect your TSH, it will not affect how you are feeling - unless, of course we are talking about a TSH above ~ 4 - in which case you want to catch it early if it is trending higher due to a malfunctioning thyroid. If you feel OK, 12 weeks will be fine. If you are feeling ill, the higher the frequency of tests the faster you get better.